./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW --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 cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- 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-4e7fbc6 [2022-11-23 15:41:40,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:41:40,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:41:40,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:41:40,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:41:40,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:41:40,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:41:40,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:41:40,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:41:40,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:41:40,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:41:40,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:41:40,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:41:40,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:41:40,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:41:40,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:41:40,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:41:40,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:41:40,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:41:40,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:41:40,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:41:40,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:41:40,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:41:40,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:41:40,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:41:40,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:41:40,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:41:40,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:41:40,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:41:40,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:41:40,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:41:40,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:41:40,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:41:40,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:41:40,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:41:40,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:41:40,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:41:40,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:41:40,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:41:40,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:41:40,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:41:40,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:41:40,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:41:40,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:41:40,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:41:40,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:41:40,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:41:40,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:41:40,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:41:40,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:41:40,383 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:41:40,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:41:40,383 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:41:40,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:41:40,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:41:40,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:41:40,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:41:40,384 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:41:40,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:41:40,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:41:40,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:41:40,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:41:40,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:41:40,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:41:40,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:41:40,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:41:40,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:41:40,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:41:40,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:41:40,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:41:40,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:41:40,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:41:40,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:41:40,389 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:41:40,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:41:40,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:41:40,389 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:41:40,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:41:40,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:41:40,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:41:40,390 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_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-11-23 15:41:40,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:41:40,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:41:40,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:41:40,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:41:40,692 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:41:40,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-23 15:41:43,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:41:44,068 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:41:44,069 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-23 15:41:44,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/data/8e136be03/be417116d4af4ce684aaa2240b441f46/FLAG453ad6a3b [2022-11-23 15:41:44,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/data/8e136be03/be417116d4af4ce684aaa2240b441f46 [2022-11-23 15:41:44,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:41:44,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:41:44,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:41:44,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:41:44,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:41:44,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b71299b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44, skipping insertion in model container [2022-11-23 15:41:44,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:41:44,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:41:44,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-23 15:41:44,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:41:44,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:41:44,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-23 15:41:44,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:41:44,726 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:41:44,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44 WrapperNode [2022-11-23 15:41:44,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:41:44,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:41:44,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:41:44,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:41:44,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,778 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 141 [2022-11-23 15:41:44,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:41:44,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:41:44,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:41:44,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:41:44,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:41:44,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:41:44,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:41:44,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:41:44,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 15:41:44,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:41:44,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:41:44,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:41:44,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:41:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 15:41:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 15:41:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:41:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:41:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:41:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:41:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-23 15:41:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-23 15:41:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 15:41:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 15:41:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:41:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:41:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:41:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:41:44,909 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:41:45,136 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:41:45,138 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:41:45,457 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:41:45,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:41:45,466 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:41:45,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:45 BoogieIcfgContainer [2022-11-23 15:41:45,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:41:45,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:41:45,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:41:45,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:41:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:41:44" (1/3) ... [2022-11-23 15:41:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789dddfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:45, skipping insertion in model container [2022-11-23 15:41:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (2/3) ... [2022-11-23 15:41:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789dddfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:45, skipping insertion in model container [2022-11-23 15:41:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:45" (3/3) ... [2022-11-23 15:41:45,477 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-11-23 15:41:45,485 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:41:45,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:41:45,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-23 15:41:45,497 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:41:45,649 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:41:45,691 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:41:45,714 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 196 transitions, 407 flow [2022-11-23 15:41:45,717 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 196 transitions, 407 flow [2022-11-23 15:41:45,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 196 transitions, 407 flow [2022-11-23 15:41:45,820 INFO L130 PetriNetUnfolder]: 5/193 cut-off events. [2022-11-23 15:41:45,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:41:45,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 193 events. 5/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 389 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2022-11-23 15:41:45,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 15762 [2022-11-23 15:41:52,929 INFO L134 LiptonReduction]: Checked pairs total: 70739 [2022-11-23 15:41:52,930 INFO L136 LiptonReduction]: Total number of compositions: 163 [2022-11-23 15:41:52,941 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 63 transitions, 141 flow [2022-11-23 15:41:54,425 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35599 states, 35492 states have (on average 3.827172320522935) internal successors, (135834), 35598 states have internal predecessors, (135834), 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) [2022-11-23 15:41:54,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:41:54,464 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;@468332b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:41:54,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-23 15:41:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 35599 states, 35492 states have (on average 3.827172320522935) internal successors, (135834), 35598 states have internal predecessors, (135834), 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) [2022-11-23 15:41:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:41:54,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:41:54,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:41:54,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:41:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:41:54,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1741538572, now seen corresponding path program 1 times [2022-11-23 15:41:54,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:41:54,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099350434] [2022-11-23 15:41:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:41:54,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:41:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:41:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:41:54,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:41:54,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099350434] [2022-11-23 15:41:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099350434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:41:54,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:41:54,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:41:54,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713980824] [2022-11-23 15:41:54,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:41:54,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:41:54,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:41:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:41:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:41:55,029 INFO L87 Difference]: Start difference. First operand has 35599 states, 35492 states have (on average 3.827172320522935) internal successors, (135834), 35598 states have internal predecessors, (135834), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:41:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:41:56,575 INFO L93 Difference]: Finished difference Result 61320 states and 220644 transitions. [2022-11-23 15:41:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:41:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 15:41:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:41:57,375 INFO L225 Difference]: With dead ends: 61320 [2022-11-23 15:41:57,375 INFO L226 Difference]: Without dead ends: 61320 [2022-11-23 15:41:57,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:41:57,379 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 48 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:41:57,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 56 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:41:57,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61320 states. [2022-11-23 15:41:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61320 to 40230. [2022-11-23 15:41:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40230 states, 40123 states have (on average 3.712758268324901) internal successors, (148967), 40229 states have internal predecessors, (148967), 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) [2022-11-23 15:42:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40230 states to 40230 states and 148967 transitions. [2022-11-23 15:42:00,699 INFO L78 Accepts]: Start accepts. Automaton has 40230 states and 148967 transitions. Word has length 7 [2022-11-23 15:42:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:00,700 INFO L495 AbstractCegarLoop]: Abstraction has 40230 states and 148967 transitions. [2022-11-23 15:42:00,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:42:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 40230 states and 148967 transitions. [2022-11-23 15:42:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:42:00,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:00,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:42:00,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1745872554, now seen corresponding path program 1 times [2022-11-23 15:42:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:00,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697480542] [2022-11-23 15:42:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:00,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:00,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:00,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697480542] [2022-11-23 15:42:00,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697480542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:00,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:00,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:42:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373419267] [2022-11-23 15:42:00,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:00,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:00,834 INFO L87 Difference]: Start difference. First operand 40230 states and 148967 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:42:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:01,429 INFO L93 Difference]: Finished difference Result 43397 states and 159602 transitions. [2022-11-23 15:42:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:01,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 15:42:01,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:01,630 INFO L225 Difference]: With dead ends: 43397 [2022-11-23 15:42:01,631 INFO L226 Difference]: Without dead ends: 43397 [2022-11-23 15:42:01,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:01,632 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 66 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:01,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43397 states. [2022-11-23 15:42:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43397 to 41558. [2022-11-23 15:42:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41558 states, 41452 states have (on average 3.6944176396796293) internal successors, (153141), 41557 states have internal predecessors, (153141), 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) [2022-11-23 15:42:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41558 states to 41558 states and 153141 transitions. [2022-11-23 15:42:03,619 INFO L78 Accepts]: Start accepts. Automaton has 41558 states and 153141 transitions. Word has length 7 [2022-11-23 15:42:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:03,619 INFO L495 AbstractCegarLoop]: Abstraction has 41558 states and 153141 transitions. [2022-11-23 15:42:03,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:42:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 41558 states and 153141 transitions. [2022-11-23 15:42:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:42:03,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:03,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:03,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:42:03,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1029788084, now seen corresponding path program 1 times [2022-11-23 15:42:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:03,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723041272] [2022-11-23 15:42:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:03,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:03,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723041272] [2022-11-23 15:42:03,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723041272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:03,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:03,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:42:03,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473590179] [2022-11-23 15:42:03,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:03,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:03,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:03,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:03,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:03,696 INFO L87 Difference]: Start difference. First operand 41558 states and 153141 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 15:42:04,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:04,643 INFO L93 Difference]: Finished difference Result 56951 states and 203627 transitions. [2022-11-23 15:42:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:04,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-23 15:42:04,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:04,969 INFO L225 Difference]: With dead ends: 56951 [2022-11-23 15:42:04,969 INFO L226 Difference]: Without dead ends: 52016 [2022-11-23 15:42:04,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:04,971 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 47 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:04,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 64 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:05,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52016 states. [2022-11-23 15:42:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52016 to 40069. [2022-11-23 15:42:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40069 states, 39982 states have (on average 3.5784102846280827) internal successors, (143072), 40068 states have internal predecessors, (143072), 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) [2022-11-23 15:42:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40069 states to 40069 states and 143072 transitions. [2022-11-23 15:42:07,295 INFO L78 Accepts]: Start accepts. Automaton has 40069 states and 143072 transitions. Word has length 10 [2022-11-23 15:42:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:07,295 INFO L495 AbstractCegarLoop]: Abstraction has 40069 states and 143072 transitions. [2022-11-23 15:42:07,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 15:42:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 40069 states and 143072 transitions. [2022-11-23 15:42:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:42:07,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:07,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:07,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:42:07,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:07,299 INFO L85 PathProgramCache]: Analyzing trace with hash 765303619, now seen corresponding path program 1 times [2022-11-23 15:42:07,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:07,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452585689] [2022-11-23 15:42:07,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:07,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:07,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:07,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452585689] [2022-11-23 15:42:07,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452585689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:07,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:07,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:42:07,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056223854] [2022-11-23 15:42:07,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:07,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:07,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:07,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:07,337 INFO L87 Difference]: Start difference. First operand 40069 states and 143072 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 15:42:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:07,732 INFO L93 Difference]: Finished difference Result 42308 states and 150208 transitions. [2022-11-23 15:42:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:07,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-23 15:42:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:07,969 INFO L225 Difference]: With dead ends: 42308 [2022-11-23 15:42:07,969 INFO L226 Difference]: Without dead ends: 42308 [2022-11-23 15:42:07,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:07,970 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 36 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:07,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 63 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42308 states. [2022-11-23 15:42:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42308 to 40554. [2022-11-23 15:42:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40554 states, 40475 states have (on average 3.559777640518839) internal successors, (144082), 40553 states have internal predecessors, (144082), 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) [2022-11-23 15:42:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40554 states to 40554 states and 144082 transitions. [2022-11-23 15:42:09,378 INFO L78 Accepts]: Start accepts. Automaton has 40554 states and 144082 transitions. Word has length 10 [2022-11-23 15:42:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:09,378 INFO L495 AbstractCegarLoop]: Abstraction has 40554 states and 144082 transitions. [2022-11-23 15:42:09,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-23 15:42:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 40554 states and 144082 transitions. [2022-11-23 15:42:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:42:09,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:09,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:09,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:42:09,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:09,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:09,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1425683337, now seen corresponding path program 1 times [2022-11-23 15:42:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:09,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135548258] [2022-11-23 15:42:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:09,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:09,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:09,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135548258] [2022-11-23 15:42:09,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135548258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:09,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:09,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:42:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223597646] [2022-11-23 15:42:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:09,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:09,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:09,473 INFO L87 Difference]: Start difference. First operand 40554 states and 144082 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 15:42:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:09,567 INFO L93 Difference]: Finished difference Result 3652 states and 7719 transitions. [2022-11-23 15:42:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-23 15:42:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:09,576 INFO L225 Difference]: With dead ends: 3652 [2022-11-23 15:42:09,576 INFO L226 Difference]: Without dead ends: 3652 [2022-11-23 15:42:09,576 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 [2022-11-23 15:42:09,577 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 37 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:09,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 58 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-11-23 15:42:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3404. [2022-11-23 15:42:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3374 states have (on average 2.1671606401896857) internal successors, (7312), 3403 states have internal predecessors, (7312), 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) [2022-11-23 15:42:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 7312 transitions. [2022-11-23 15:42:10,020 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 7312 transitions. Word has length 11 [2022-11-23 15:42:10,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:10,020 INFO L495 AbstractCegarLoop]: Abstraction has 3404 states and 7312 transitions. [2022-11-23 15:42:10,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-23 15:42:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 7312 transitions. [2022-11-23 15:42:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:42:10,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:10,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:10,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:42:10,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:10,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash -564306062, now seen corresponding path program 1 times [2022-11-23 15:42:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:10,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470282144] [2022-11-23 15:42:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:10,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:10,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:10,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470282144] [2022-11-23 15:42:10,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470282144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:10,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:10,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:42:10,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609277622] [2022-11-23 15:42:10,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:10,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:10,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:10,104 INFO L87 Difference]: Start difference. First operand 3404 states and 7312 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-23 15:42:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:10,224 INFO L93 Difference]: Finished difference Result 3365 states and 7182 transitions. [2022-11-23 15:42:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 [2022-11-23 15:42:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:10,232 INFO L225 Difference]: With dead ends: 3365 [2022-11-23 15:42:10,233 INFO L226 Difference]: Without dead ends: 2887 [2022-11-23 15:42:10,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:10,234 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 35 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:10,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 67 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:10,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2022-11-23 15:42:10,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2887. [2022-11-23 15:42:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2878 states have (on average 2.112925642807505) internal successors, (6081), 2886 states have internal predecessors, (6081), 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) [2022-11-23 15:42:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 6081 transitions. [2022-11-23 15:42:10,282 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 6081 transitions. Word has length 15 [2022-11-23 15:42:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:10,283 INFO L495 AbstractCegarLoop]: Abstraction has 2887 states and 6081 transitions. [2022-11-23 15:42:10,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-23 15:42:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 6081 transitions. [2022-11-23 15:42:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:42:10,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:10,285 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] [2022-11-23 15:42:10,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:42:10,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:10,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:10,286 INFO L85 PathProgramCache]: Analyzing trace with hash 882788178, now seen corresponding path program 1 times [2022-11-23 15:42:10,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:10,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147129059] [2022-11-23 15:42:10,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:10,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:10,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:10,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147129059] [2022-11-23 15:42:10,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147129059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:10,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:10,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:42:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375291224] [2022-11-23 15:42:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:10,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:42:10,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:10,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:42:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:42:10,444 INFO L87 Difference]: Start difference. First operand 2887 states and 6081 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:42:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:10,538 INFO L93 Difference]: Finished difference Result 3968 states and 8089 transitions. [2022-11-23 15:42:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:42:10,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2022-11-23 15:42:10,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:10,547 INFO L225 Difference]: With dead ends: 3968 [2022-11-23 15:42:10,548 INFO L226 Difference]: Without dead ends: 3902 [2022-11-23 15:42:10,548 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 [2022-11-23 15:42:10,549 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 37 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:10,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 79 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-11-23 15:42:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3168. [2022-11-23 15:42:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3155 states have (on average 2.056418383518225) internal successors, (6488), 3167 states have internal predecessors, (6488), 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) [2022-11-23 15:42:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 6488 transitions. [2022-11-23 15:42:10,609 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 6488 transitions. Word has length 23 [2022-11-23 15:42:10,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:10,609 INFO L495 AbstractCegarLoop]: Abstraction has 3168 states and 6488 transitions. [2022-11-23 15:42:10,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:42:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 6488 transitions. [2022-11-23 15:42:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:42:10,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:10,612 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] [2022-11-23 15:42:10,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:42:10,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:10,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:10,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1704728942, now seen corresponding path program 2 times [2022-11-23 15:42:10,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:10,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272733273] [2022-11-23 15:42:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:10,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:10,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:10,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272733273] [2022-11-23 15:42:10,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272733273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:10,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:10,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:42:10,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689712311] [2022-11-23 15:42:10,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:10,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:42:10,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:42:10,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:42:10,814 INFO L87 Difference]: Start difference. First operand 3168 states and 6488 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:42:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:10,883 INFO L93 Difference]: Finished difference Result 1902 states and 3548 transitions. [2022-11-23 15:42:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:42:10,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2022-11-23 15:42:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:10,887 INFO L225 Difference]: With dead ends: 1902 [2022-11-23 15:42:10,887 INFO L226 Difference]: Without dead ends: 1539 [2022-11-23 15:42:10,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:42:10,889 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 63 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:10,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 55 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2022-11-23 15:42:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1359. [2022-11-23 15:42:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1341 states have (on average 1.9015659955257271) internal successors, (2550), 1358 states have internal predecessors, (2550), 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) [2022-11-23 15:42:10,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 2550 transitions. [2022-11-23 15:42:10,914 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 2550 transitions. Word has length 23 [2022-11-23 15:42:10,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:10,915 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 2550 transitions. [2022-11-23 15:42:10,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-23 15:42:10,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 2550 transitions. [2022-11-23 15:42:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:42:10,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:10,916 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] [2022-11-23 15:42:10,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:42:10,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-11-23 15:42:10,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:10,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1178321972, now seen corresponding path program 3 times [2022-11-23 15:42:10,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:10,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132949831] [2022-11-23 15:42:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:10,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:11,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:42:11,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132949831] [2022-11-23 15:42:11,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132949831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:11,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:11,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:42:11,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6222472] [2022-11-23 15:42:11,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:11,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:42:11,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:42:11,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:42:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:42:11,105 INFO L87 Difference]: Start difference. First operand 1359 states and 2550 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-11-23 15:42:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:11,152 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2022-11-23 15:42:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:42:11,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2022-11-23 15:42:11,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:11,153 INFO L225 Difference]: With dead ends: 159 [2022-11-23 15:42:11,153 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:42:11,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:42:11,154 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:11,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 17 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:42:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:42:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:42:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 15:42:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:42:11,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-23 15:42:11,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:11,156 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:42:11,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-11-23 15:42:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:42:11,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:42:11,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2022-11-23 15:42:11,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-11-23 15:42:11,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-11-23 15:42:11,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-11-23 15:42:11,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-11-23 15:42:11,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-11-23 15:42:11,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-11-23 15:42:11,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2022-11-23 15:42:11,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 19 remaining) [2022-11-23 15:42:11,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-11-23 15:42:11,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-11-23 15:42:11,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-11-23 15:42:11,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-11-23 15:42:11,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-11-23 15:42:11,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-11-23 15:42:11,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-11-23 15:42:11,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-11-23 15:42:11,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-11-23 15:42:11,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-11-23 15:42:11,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:42:11,166 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:11,171 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:42:11,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:42:11,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:42:11 BasicIcfg [2022-11-23 15:42:11,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:42:11,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:42:11,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:42:11,174 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:42:11,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:45" (3/4) ... [2022-11-23 15:42:11,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:42:11,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-23 15:42:11,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-11-23 15:42:11,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 15:42:11,189 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-23 15:42:11,190 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 15:42:11,190 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:42:11,190 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:42:11,228 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:42:11,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:42:11,229 INFO L158 Benchmark]: Toolchain (without parser) took 27128.80ms. Allocated memory was 184.5MB in the beginning and 10.2GB in the end (delta: 10.0GB). Free memory was 152.3MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-23 15:42:11,229 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:42:11,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.37ms. Allocated memory is still 184.5MB. Free memory was 152.3MB in the beginning and 145.1MB in the end (delta: 7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:42:11,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:42:11,230 INFO L158 Benchmark]: Boogie Preprocessor took 28.44ms. Allocated memory is still 184.5MB. Free memory was 143.0MB in the beginning and 141.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:42:11,230 INFO L158 Benchmark]: RCFGBuilder took 661.10ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 123.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:42:11,231 INFO L158 Benchmark]: TraceAbstraction took 25702.49ms. Allocated memory was 184.5MB in the beginning and 10.2GB in the end (delta: 10.0GB). Free memory was 122.1MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-23 15:42:11,231 INFO L158 Benchmark]: Witness Printer took 53.97ms. Allocated memory is still 10.2GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:42:11,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.37ms. Allocated memory is still 184.5MB. Free memory was 152.3MB in the beginning and 145.1MB in the end (delta: 7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.44ms. Allocated memory is still 184.5MB. Free memory was 143.0MB in the beginning and 141.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 661.10ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 123.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25702.49ms. Allocated memory was 184.5MB in the beginning and 10.2GB in the end (delta: 10.0GB). Free memory was 122.1MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 53.97ms. Allocated memory is still 10.2GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 201 PlacesBefore, 71 PlacesAfterwards, 196 TransitionsBefore, 63 TransitionsAfterwards, 15762 CoEnabledTransitionPairs, 12 FixpointIterations, 39 TrivialSequentialCompositions, 101 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 3 ChoiceCompositions, 163 TotalNumberOfCompositions, 70739 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21493, independent: 20278, independent conditional: 0, independent unconditional: 20278, dependent: 1215, dependent conditional: 0, dependent unconditional: 1215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10895, independent: 10725, independent conditional: 0, independent unconditional: 10725, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10895, independent: 10514, independent conditional: 0, independent unconditional: 10514, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 381, independent: 211, independent conditional: 0, independent unconditional: 211, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 595, independent: 233, independent conditional: 0, independent unconditional: 233, dependent: 362, dependent conditional: 0, dependent unconditional: 362, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21493, independent: 9553, independent conditional: 0, independent unconditional: 9553, dependent: 1045, dependent conditional: 0, dependent unconditional: 1045, unknown: 10895, unknown conditional: 0, unknown unconditional: 10895] , Statistics on independence cache: Total cache size (in pairs): 1133, Positive cache size: 1045, Positive conditional cache size: 0, Positive unconditional cache size: 1045, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 291 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 525 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 662 IncrementalHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 355 mSDtfsCounter, 662 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41558occurred in iteration=2, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 37792 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 15:42:11,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94078c0-e8b0-4708-b682-822bbdec3c52/bin/utaipan-Q6hlc19bkW/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 Result: TRUE