./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:43:11,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:43:11,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:43:11,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:43:11,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:43:11,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:43:11,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:43:11,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:43:11,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:43:11,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:43:11,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:43:11,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:43:11,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:43:11,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:43:11,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:43:11,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:43:11,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:43:11,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:43:11,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:43:11,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:43:11,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:43:11,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:43:11,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:43:11,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:43:11,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:43:11,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:43:11,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:43:11,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:43:11,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:43:11,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:43:11,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:43:11,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:43:11,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:43:11,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:43:11,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:43:11,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:43:11,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:43:11,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:43:11,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:43:11,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:43:11,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:43:11,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:43:11,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:43:11,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:43:11,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:43:11,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:43:11,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:43:11,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:43:11,883 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:43:11,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:43:11,884 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:43:11,884 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:43:11,885 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:43:11,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:43:11,886 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:43:11,886 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:43:11,887 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:43:11,887 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:43:11,887 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:43:11,887 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:43:11,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:43:11,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:43:11,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:43:11,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:43:11,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:43:11,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:43:11,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:43:11,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:43:11,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:43:11,892 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:43:11,892 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:43:11,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:43:11,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:43:11,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:43:11,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:43:11,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:43:11,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:43:11,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:43:11,895 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:43:11,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:43:11,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:43:11,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:43:11,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:43:11,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:43:11,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:43:11,896 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_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2022-11-03 02:43:12,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:43:12,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:43:12,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:43:12,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:43:12,291 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:43:12,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-03 02:43:12,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/data/3cf521caf/95e7849d7eb6417690b102cadbb8f641/FLAG49ef5a30e [2022-11-03 02:43:13,110 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:43:13,111 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-03 02:43:13,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/data/3cf521caf/95e7849d7eb6417690b102cadbb8f641/FLAG49ef5a30e [2022-11-03 02:43:13,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/data/3cf521caf/95e7849d7eb6417690b102cadbb8f641 [2022-11-03 02:43:13,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:43:13,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:43:13,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:43:13,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:43:13,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:43:13,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:13" (1/1) ... [2022-11-03 02:43:13,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1094a01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:13, skipping insertion in model container [2022-11-03 02:43:13,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:13" (1/1) ... [2022-11-03 02:43:13,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:43:13,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:43:14,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:43:14,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:43:14,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:43:14,413 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:43:14,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14 WrapperNode [2022-11-03 02:43:14,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:43:14,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:43:14,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:43:14,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:43:14,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,525 INFO L138 Inliner]: procedures = 365, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-03 02:43:14,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:43:14,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:43:14,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:43:14,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:43:14,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:43:14,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:43:14,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:43:14,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:43:14,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (1/1) ... [2022-11-03 02:43:14,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:43:14,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:14,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:43:14,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:43:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:43:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:43:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:43:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:43:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:43:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:43:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:43:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 02:43:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 02:43:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:43:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:43:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:43:14,712 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:43:14,924 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:43:14,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:43:15,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:43:15,240 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:43:15,240 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:43:15,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:15 BoogieIcfgContainer [2022-11-03 02:43:15,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:43:15,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:43:15,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:43:15,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:43:15,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:43:13" (1/3) ... [2022-11-03 02:43:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b304312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:15, skipping insertion in model container [2022-11-03 02:43:15,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:14" (2/3) ... [2022-11-03 02:43:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b304312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:15, skipping insertion in model container [2022-11-03 02:43:15,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:15" (3/3) ... [2022-11-03 02:43:15,253 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2022-11-03 02:43:15,283 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:43:15,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:43:15,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-03 02:43:15,312 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:43:15,385 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:43:15,427 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:43:15,474 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 107 transitions, 219 flow [2022-11-03 02:43:15,477 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 107 transitions, 219 flow [2022-11-03 02:43:15,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 107 transitions, 219 flow [2022-11-03 02:43:15,563 INFO L130 PetriNetUnfolder]: 0/106 cut-off events. [2022-11-03 02:43:15,563 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:43:15,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 0/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-03 02:43:15,569 INFO L118 LiptonReduction]: Number of co-enabled transitions 1920 [2022-11-03 02:43:20,359 INFO L133 LiptonReduction]: Checked pairs total: 12438 [2022-11-03 02:43:20,359 INFO L135 LiptonReduction]: Total number of compositions: 89 [2022-11-03 02:43:20,369 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 40 transitions, 85 flow [2022-11-03 02:43:20,426 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 344 states, 323 states have (on average 2.003095975232198) internal successors, (647), 343 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:20,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:43:20,457 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3455e4e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:43:20,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-03 02:43:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 344 states, 323 states have (on average 2.003095975232198) internal successors, (647), 343 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:43:20,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:20,467 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:43:20,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash 358, now seen corresponding path program 1 times [2022-11-03 02:43:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:20,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311766847] [2022-11-03 02:43:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:20,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:20,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311766847] [2022-11-03 02:43:20,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311766847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:20,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:20,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:43:20,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181998907] [2022-11-03 02:43:20,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:20,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:43:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:20,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:43:20,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:43:20,649 INFO L87 Difference]: Start difference. First operand has 344 states, 323 states have (on average 2.003095975232198) internal successors, (647), 343 states have internal predecessors, (647), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:20,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:20,733 INFO L93 Difference]: Finished difference Result 289 states and 542 transitions. [2022-11-03 02:43:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:43:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-03 02:43:20,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:20,760 INFO L225 Difference]: With dead ends: 289 [2022-11-03 02:43:20,760 INFO L226 Difference]: Without dead ends: 289 [2022-11-03 02:43:20,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:43:20,766 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:20,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:43:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-03 02:43:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-11-03 02:43:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9288256227758007) internal successors, (542), 288 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 542 transitions. [2022-11-03 02:43:20,843 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 542 transitions. Word has length 1 [2022-11-03 02:43:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:20,843 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 542 transitions. [2022-11-03 02:43:20,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 542 transitions. [2022-11-03 02:43:20,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:43:20,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:20,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:20,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:43:20,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:20,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:20,847 INFO L85 PathProgramCache]: Analyzing trace with hash -366173793, now seen corresponding path program 1 times [2022-11-03 02:43:20,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:20,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332152185] [2022-11-03 02:43:20,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:21,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:21,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332152185] [2022-11-03 02:43:21,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332152185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:21,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:21,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:43:21,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178613544] [2022-11-03 02:43:21,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:21,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:43:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:21,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:43:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:21,577 INFO L87 Difference]: Start difference. First operand 289 states and 542 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:21,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:21,959 INFO L93 Difference]: Finished difference Result 383 states and 723 transitions. [2022-11-03 02:43:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:43:21,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) Word has length 9 [2022-11-03 02:43:21,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:21,963 INFO L225 Difference]: With dead ends: 383 [2022-11-03 02:43:21,964 INFO L226 Difference]: Without dead ends: 383 [2022-11-03 02:43:21,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:21,965 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 31 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:21,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 27 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:43:21,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-03 02:43:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2022-11-03 02:43:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 343 states have (on average 1.9475218658892128) internal successors, (668), 350 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 668 transitions. [2022-11-03 02:43:21,999 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 668 transitions. Word has length 9 [2022-11-03 02:43:21,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:21,999 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 668 transitions. [2022-11-03 02:43:21,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 668 transitions. [2022-11-03 02:43:22,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:43:22,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:22,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:22,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:43:22,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash -42031479, now seen corresponding path program 1 times [2022-11-03 02:43:22,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:22,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046744123] [2022-11-03 02:43:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:22,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:22,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:22,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046744123] [2022-11-03 02:43:22,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046744123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:22,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:22,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:43:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899868695] [2022-11-03 02:43:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:22,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:43:22,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:22,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:43:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:22,457 INFO L87 Difference]: Start difference. First operand 351 states and 668 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:22,838 INFO L93 Difference]: Finished difference Result 671 states and 1253 transitions. [2022-11-03 02:43:22,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:43:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) Word has length 9 [2022-11-03 02:43:22,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:22,843 INFO L225 Difference]: With dead ends: 671 [2022-11-03 02:43:22,843 INFO L226 Difference]: Without dead ends: 671 [2022-11-03 02:43:22,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:22,845 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:22,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 16 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:43:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-11-03 02:43:22,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 395. [2022-11-03 02:43:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 387 states have (on average 1.9431524547803618) internal successors, (752), 394 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 752 transitions. [2022-11-03 02:43:22,871 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 752 transitions. Word has length 9 [2022-11-03 02:43:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:22,872 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 752 transitions. [2022-11-03 02:43:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 752 transitions. [2022-11-03 02:43:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:43:22,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:22,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:22,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:43:22,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash 662960739, now seen corresponding path program 1 times [2022-11-03 02:43:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777098685] [2022-11-03 02:43:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:22,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:22,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:22,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:22,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777098685] [2022-11-03 02:43:22,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777098685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:22,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:22,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:43:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451242550] [2022-11-03 02:43:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:22,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:43:22,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:43:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:22,947 INFO L87 Difference]: Start difference. First operand 395 states and 752 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:22,981 INFO L93 Difference]: Finished difference Result 188 states and 316 transitions. [2022-11-03 02:43:22,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:43:22,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2022-11-03 02:43:22,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:22,983 INFO L225 Difference]: With dead ends: 188 [2022-11-03 02:43:22,984 INFO L226 Difference]: Without dead ends: 188 [2022-11-03 02:43:22,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:43:22,985 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:22,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:43:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-03 02:43:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-03 02:43:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 182 states have (on average 1.7362637362637363) internal successors, (316), 187 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) [2022-11-03 02:43:22,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 316 transitions. [2022-11-03 02:43:22,996 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 316 transitions. Word has length 12 [2022-11-03 02:43:22,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:22,996 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 316 transitions. [2022-11-03 02:43:22,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 316 transitions. [2022-11-03 02:43:22,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:43:22,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:22,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:22,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:43:22,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash -668144571, now seen corresponding path program 1 times [2022-11-03 02:43:22,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:23,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953510420] [2022-11-03 02:43:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:23,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:23,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953510420] [2022-11-03 02:43:23,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953510420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:23,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:23,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:43:23,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330514122] [2022-11-03 02:43:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:23,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:43:23,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:23,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:43:23,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:23,339 INFO L87 Difference]: Start difference. First operand 188 states and 316 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:23,527 INFO L93 Difference]: Finished difference Result 209 states and 354 transitions. [2022-11-03 02:43:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:43:23,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) Word has length 15 [2022-11-03 02:43:23,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:23,529 INFO L225 Difference]: With dead ends: 209 [2022-11-03 02:43:23,529 INFO L226 Difference]: Without dead ends: 196 [2022-11-03 02:43:23,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:23,531 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:23,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:43:23,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-03 02:43:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-11-03 02:43:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 195 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 328 transitions. [2022-11-03 02:43:23,541 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 328 transitions. Word has length 15 [2022-11-03 02:43:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:23,541 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 328 transitions. [2022-11-03 02:43:23,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 328 transitions. [2022-11-03 02:43:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:43:23,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:23,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:23,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:43:23,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:23,545 INFO L85 PathProgramCache]: Analyzing trace with hash 238989232, now seen corresponding path program 1 times [2022-11-03 02:43:23,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:23,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329135739] [2022-11-03 02:43:23,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:23,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:23,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:23,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329135739] [2022-11-03 02:43:23,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329135739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:23,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:23,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:43:23,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829894926] [2022-11-03 02:43:23,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:23,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:43:23,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:43:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:23,817 INFO L87 Difference]: Start difference. First operand 196 states and 328 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:24,231 INFO L93 Difference]: Finished difference Result 255 states and 428 transitions. [2022-11-03 02:43:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:43:24,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 16 [2022-11-03 02:43:24,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:24,233 INFO L225 Difference]: With dead ends: 255 [2022-11-03 02:43:24,233 INFO L226 Difference]: Without dead ends: 222 [2022-11-03 02:43:24,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:43:24,234 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:24,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 17 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:43:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-03 02:43:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2022-11-03 02:43:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.8086124401913874) internal successors, (378), 213 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 378 transitions. [2022-11-03 02:43:24,250 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 378 transitions. Word has length 16 [2022-11-03 02:43:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:24,251 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 378 transitions. [2022-11-03 02:43:24,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 378 transitions. [2022-11-03 02:43:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:43:24,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:24,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:24,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:43:24,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash -204641165, now seen corresponding path program 1 times [2022-11-03 02:43:24,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:24,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398717048] [2022-11-03 02:43:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:24,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:24,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:24,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398717048] [2022-11-03 02:43:24,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398717048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:24,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:24,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:43:24,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301952976] [2022-11-03 02:43:24,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:24,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:43:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:43:24,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:43:24,984 INFO L87 Difference]: Start difference. First operand 214 states and 378 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:25,381 INFO L93 Difference]: Finished difference Result 263 states and 455 transitions. [2022-11-03 02:43:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:43:25,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) Word has length 19 [2022-11-03 02:43:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:25,383 INFO L225 Difference]: With dead ends: 263 [2022-11-03 02:43:25,383 INFO L226 Difference]: Without dead ends: 255 [2022-11-03 02:43:25,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:43:25,384 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:25,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:43:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-03 02:43:25,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 181. [2022-11-03 02:43:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 177 states have (on average 1.7909604519774012) internal successors, (317), 180 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 317 transitions. [2022-11-03 02:43:25,394 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 317 transitions. Word has length 19 [2022-11-03 02:43:25,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:25,394 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 317 transitions. [2022-11-03 02:43:25,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 317 transitions. [2022-11-03 02:43:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:43:25,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:25,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:25,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:43:25,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:25,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:25,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1592111463, now seen corresponding path program 1 times [2022-11-03 02:43:25,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:25,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804309027] [2022-11-03 02:43:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:25,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:43:25,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:25,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804309027] [2022-11-03 02:43:25,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804309027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:25,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:25,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:43:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32306882] [2022-11-03 02:43:25,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:25,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:43:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:43:25,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:43:25,814 INFO L87 Difference]: Start difference. First operand 181 states and 317 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:26,088 INFO L93 Difference]: Finished difference Result 176 states and 308 transitions. [2022-11-03 02:43:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:43:26,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) Word has length 19 [2022-11-03 02:43:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:26,090 INFO L225 Difference]: With dead ends: 176 [2022-11-03 02:43:26,090 INFO L226 Difference]: Without dead ends: 172 [2022-11-03 02:43:26,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:43:26,091 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:26,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:43:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-03 02:43:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2022-11-03 02:43:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 153 states have (on average 1.7843137254901962) internal successors, (273), 155 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 273 transitions. [2022-11-03 02:43:26,101 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 273 transitions. Word has length 19 [2022-11-03 02:43:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:26,102 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 273 transitions. [2022-11-03 02:43:26,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:43:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 273 transitions. [2022-11-03 02:43:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:43:26,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:26,103 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:43:26,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:43:26,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-03 02:43:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash 528343949, now seen corresponding path program 1 times [2022-11-03 02:43:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074841851] [2022-11-03 02:43:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:43:26,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:43:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:43:26,193 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:43:26,193 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:43:26,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-03 02:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-03 02:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-03 02:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-03 02:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-03 02:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2022-11-03 02:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-03 02:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-03 02:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-03 02:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-03 02:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-03 02:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-03 02:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-03 02:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-03 02:43:26,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:43:26,203 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:26,210 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:43:26,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:43:26,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:43:26 BasicIcfg [2022-11-03 02:43:26,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:43:26,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:43:26,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:43:26,249 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:43:26,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:15" (3/4) ... [2022-11-03 02:43:26,252 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:43:26,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:43:26,253 INFO L158 Benchmark]: Toolchain (without parser) took 12979.85ms. Allocated memory was 98.6MB in the beginning and 218.1MB in the end (delta: 119.5MB). Free memory was 60.4MB in the beginning and 167.7MB in the end (delta: -107.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-03 02:43:26,254 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:43:26,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1137.53ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 60.1MB in the beginning and 83.2MB in the end (delta: -23.1MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-03 02:43:26,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.30ms. Allocated memory is still 136.3MB. Free memory was 83.2MB in the beginning and 80.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:43:26,255 INFO L158 Benchmark]: Boogie Preprocessor took 67.61ms. Allocated memory is still 136.3MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:43:26,255 INFO L158 Benchmark]: RCFGBuilder took 647.65ms. Allocated memory is still 136.3MB. Free memory was 78.5MB in the beginning and 63.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-03 02:43:26,255 INFO L158 Benchmark]: TraceAbstraction took 11002.16ms. Allocated memory was 136.3MB in the beginning and 218.1MB in the end (delta: 81.8MB). Free memory was 62.2MB in the beginning and 168.7MB in the end (delta: -106.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:43:26,256 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 218.1MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:43:26,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1137.53ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 60.1MB in the beginning and 83.2MB in the end (delta: -23.1MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.30ms. Allocated memory is still 136.3MB. Free memory was 83.2MB in the beginning and 80.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.61ms. Allocated memory is still 136.3MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 647.65ms. Allocated memory is still 136.3MB. Free memory was 78.5MB in the beginning and 63.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11002.16ms. Allocated memory was 136.3MB in the beginning and 218.1MB in the end (delta: 81.8MB). Free memory was 62.2MB in the beginning and 168.7MB in the end (delta: -106.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 218.1MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 111 PlacesBefore, 44 PlacesAfterwards, 107 TransitionsBefore, 40 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 9 FixpointIterations, 49 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 89 TotalNumberOfCompositions, 12438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3632, positive: 3047, positive conditional: 0, positive unconditional: 3047, negative: 585, negative conditional: 0, negative unconditional: 585, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1423, positive: 1332, positive conditional: 0, positive unconditional: 1332, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1423, positive: 1189, positive conditional: 0, positive unconditional: 1189, negative: 234, negative conditional: 0, negative unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 234, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 532, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 285, negative conditional: 0, negative unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3632, positive: 1715, positive conditional: 0, positive unconditional: 1715, negative: 494, negative conditional: 0, negative unconditional: 494, unknown: 1423, unknown conditional: 0, unknown unconditional: 1423] , Statistics on independence cache: Total cache size (in pairs): 286, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61 - 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: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d={-2:0}, d->x=102, id={9:0}, m={3:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, id={9:0}, m={3:0}, z={-2:0}, z->y=101] [L1231] 1 d->x = 3 [L1232] EXPR 1 d->y [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=104, m={3:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=104, id={9:0}, m={3:0}, z={-2:0}, z->y=101] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1363 IncrementalHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 117 mSDtfsCounter, 1363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=395occurred in iteration=3, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 406 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 could not prove your program: unable to determine feasibility of some traces [2022-11-03 02:43:26,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f89d7-0068-4dab-9be7-b61289e9c3ab/bin/utaipan-7li7fVZpFI/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