./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/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_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/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_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- 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 15:02:46,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:02:46,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:02:46,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:02:46,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:02:46,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:02:46,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:02:46,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:02:46,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:02:46,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:02:46,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:02:46,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:02:46,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:02:46,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:02:46,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:02:46,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:02:46,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:02:46,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:02:46,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:02:46,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:02:46,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:02:46,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:02:46,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:02:46,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:02:46,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:02:46,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:02:46,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:02:46,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:02:46,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:02:46,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:02:46,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:02:46,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:02:46,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:02:46,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:02:46,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:02:46,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:02:46,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:02:46,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:02:46,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:02:46,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:02:46,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:02:46,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:02:46,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:02:46,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:02:46,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:02:46,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:02:46,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:02:46,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:02:46,215 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:02:46,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:02:46,215 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:02:46,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:02:46,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:02:46,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:02:46,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:02:46,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:02:46,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:02:46,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:02:46,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:02:46,218 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:02:46,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:02:46,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:02:46,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:02:46,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:02:46,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:02:46,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:02:46,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:02:46,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:02:46,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:02:46,221 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:02:46,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:02:46,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:02:46,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:02:46,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:02:46,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:02:46,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:02:46,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:02:46,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:02:46,224 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:02:46,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:02:46,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:02:46,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:02:46,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:02:46,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:02:46,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:02:46,225 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_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-11-23 15:02:46,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:02:46,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:02:46,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:02:46,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:02:46,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:02:46,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-23 15:02:49,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:02:50,055 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:02:50,055 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-23 15:02:50,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/data/00c0a64d7/c6898e3fc6cd4d3eaa3b0900597d5755/FLAG8fa3242c9 [2022-11-23 15:02:50,084 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/data/00c0a64d7/c6898e3fc6cd4d3eaa3b0900597d5755 [2022-11-23 15:02:50,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:02:50,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:02:50,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:02:50,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:02:50,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:02:50,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ea6760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50, skipping insertion in model container [2022-11-23 15:02:50,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:02:50,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:02:50,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:02:50,604 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:02:50,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:02:50,778 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:02:50,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50 WrapperNode [2022-11-23 15:02:50,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:02:50,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:02:50,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:02:50,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:02:50,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,834 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-11-23 15:02:50,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:02:50,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:02:50,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:02:50,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:02:50,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:02:50,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:02:50,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:02:50,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:02:50,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (1/1) ... [2022-11-23 15:02:50,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:02:50,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:02:50,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:02:50,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:02:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:02:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:02:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:02:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:02:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:02:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 15:02:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 15:02:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:02:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:02:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:02:50,967 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 15:02:51,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:02:51,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:02:51,417 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:02:51,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:02:51,424 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:02:51,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:02:51 BoogieIcfgContainer [2022-11-23 15:02:51,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:02:51,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:02:51,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:02:51,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:02:51,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:02:50" (1/3) ... [2022-11-23 15:02:51,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d858968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:02:51, skipping insertion in model container [2022-11-23 15:02:51,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:50" (2/3) ... [2022-11-23 15:02:51,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d858968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:02:51, skipping insertion in model container [2022-11-23 15:02:51,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:02:51" (3/3) ... [2022-11-23 15:02:51,437 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-11-23 15:02:51,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:02:51,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:02:51,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:02:51,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:02:51,503 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:02:51,545 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:02:51,569 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 92 transitions, 189 flow [2022-11-23 15:02:51,575 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 92 transitions, 189 flow [2022-11-23 15:02:51,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 189 flow [2022-11-23 15:02:51,636 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-23 15:02:51,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:02:51,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-23 15:02:51,644 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2022-11-23 15:02:58,675 INFO L134 LiptonReduction]: Checked pairs total: 2766 [2022-11-23 15:02:58,676 INFO L136 LiptonReduction]: Total number of compositions: 82 [2022-11-23 15:02:58,684 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-11-23 15:02:58,703 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 15:02:58,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:02:58,727 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;@2a0499ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:02:58,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 15:02:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 15:02:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:02:58,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:58,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:58,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:02:58,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2029425773, now seen corresponding path program 1 times [2022-11-23 15:02:58,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:58,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039701353] [2022-11-23 15:02:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:58,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:59,388 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 15:02:59,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:59,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039701353] [2022-11-23 15:02:59,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039701353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:59,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:02:59,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:02:59,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114924873] [2022-11-23 15:02:59,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:59,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:02:59,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:59,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:02:59,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:02:59,434 INFO L87 Difference]: Start difference. First operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:02:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:59,702 INFO L93 Difference]: Finished difference Result 128 states and 227 transitions. [2022-11-23 15:02:59,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:02:59,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 15:02:59,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:59,714 INFO L225 Difference]: With dead ends: 128 [2022-11-23 15:02:59,715 INFO L226 Difference]: Without dead ends: 114 [2022-11-23 15:02:59,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:02:59,719 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:59,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:02:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-23 15:02:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2022-11-23 15:02:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.8113207547169812) internal successors, (192), 108 states have internal predecessors, (192), 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 15:02:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 192 transitions. [2022-11-23 15:02:59,758 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 192 transitions. Word has length 9 [2022-11-23 15:02:59,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:59,759 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 192 transitions. [2022-11-23 15:02:59,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:02:59,759 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 192 transitions. [2022-11-23 15:02:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:02:59,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:59,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:59,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:02:59,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:02:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1394122391, now seen corresponding path program 1 times [2022-11-23 15:02:59,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:59,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499878218] [2022-11-23 15:02:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:00,139 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 15:03:00,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:00,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499878218] [2022-11-23 15:03:00,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499878218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:00,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:00,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104552778] [2022-11-23 15:03:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:00,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:03:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:03:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:03:00,151 INFO L87 Difference]: Start difference. First operand 109 states and 192 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:00,351 INFO L93 Difference]: Finished difference Result 137 states and 241 transitions. [2022-11-23 15:03:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:03:00,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 15:03:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:00,354 INFO L225 Difference]: With dead ends: 137 [2022-11-23 15:03:00,355 INFO L226 Difference]: Without dead ends: 123 [2022-11-23 15:03:00,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:03:00,356 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:00,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 17 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-23 15:03:00,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2022-11-23 15:03:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.793103448275862) internal successors, (208), 118 states have internal predecessors, (208), 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 15:03:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 208 transitions. [2022-11-23 15:03:00,374 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 208 transitions. Word has length 9 [2022-11-23 15:03:00,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:00,375 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 208 transitions. [2022-11-23 15:03:00,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 208 transitions. [2022-11-23 15:03:00,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:00,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:00,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:00,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:03:00,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:00,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1634623052, now seen corresponding path program 1 times [2022-11-23 15:03:00,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:00,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579025144] [2022-11-23 15:03:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:00,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:01,150 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 15:03:01,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:01,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579025144] [2022-11-23 15:03:01,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579025144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:01,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:01,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821945808] [2022-11-23 15:03:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:01,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:01,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:01,156 INFO L87 Difference]: Start difference. First operand 119 states and 208 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:01,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:01,818 INFO L93 Difference]: Finished difference Result 131 states and 222 transitions. [2022-11-23 15:03:01,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:03:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:01,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:01,820 INFO L225 Difference]: With dead ends: 131 [2022-11-23 15:03:01,820 INFO L226 Difference]: Without dead ends: 122 [2022-11-23 15:03:01,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:03:01,821 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:01,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:03:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-23 15:03:01,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2022-11-23 15:03:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 115 states have (on average 1.791304347826087) internal successors, (206), 117 states have internal predecessors, (206), 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 15:03:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 206 transitions. [2022-11-23 15:03:01,835 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 206 transitions. Word has length 12 [2022-11-23 15:03:01,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:01,835 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 206 transitions. [2022-11-23 15:03:01,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 206 transitions. [2022-11-23 15:03:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:01,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:01,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:01,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:03:01,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:01,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:01,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1713271292, now seen corresponding path program 2 times [2022-11-23 15:03:01,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:01,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991071370] [2022-11-23 15:03:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:01,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:02,603 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 15:03:02,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:02,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991071370] [2022-11-23 15:03:02,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991071370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:02,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:02,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811321095] [2022-11-23 15:03:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:02,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:02,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:02,610 INFO L87 Difference]: Start difference. First operand 118 states and 206 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:03,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:03,166 INFO L93 Difference]: Finished difference Result 153 states and 258 transitions. [2022-11-23 15:03:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:03:03,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:03,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:03,168 INFO L225 Difference]: With dead ends: 153 [2022-11-23 15:03:03,168 INFO L226 Difference]: Without dead ends: 143 [2022-11-23 15:03:03,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-11-23 15:03:03,169 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:03,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:03,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-23 15:03:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2022-11-23 15:03:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 124 states have (on average 1.782258064516129) internal successors, (221), 126 states have internal predecessors, (221), 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 15:03:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 221 transitions. [2022-11-23 15:03:03,189 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 221 transitions. Word has length 12 [2022-11-23 15:03:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:03,190 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 221 transitions. [2022-11-23 15:03:03,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 221 transitions. [2022-11-23 15:03:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:03,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:03,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:03,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:03:03,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:03,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:03,193 INFO L85 PathProgramCache]: Analyzing trace with hash 659862706, now seen corresponding path program 3 times [2022-11-23 15:03:03,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976261767] [2022-11-23 15:03:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:03,896 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 15:03:03,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:03,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976261767] [2022-11-23 15:03:03,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976261767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:03,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:03,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:03,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722619248] [2022-11-23 15:03:03,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:03,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:03,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:03,898 INFO L87 Difference]: Start difference. First operand 127 states and 221 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:04,362 INFO L93 Difference]: Finished difference Result 177 states and 301 transitions. [2022-11-23 15:03:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:03:04,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:04,364 INFO L225 Difference]: With dead ends: 177 [2022-11-23 15:03:04,364 INFO L226 Difference]: Without dead ends: 165 [2022-11-23 15:03:04,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:03:04,365 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:04,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-23 15:03:04,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 136. [2022-11-23 15:03:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 133 states have (on average 1.7894736842105263) internal successors, (238), 135 states have internal predecessors, (238), 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 15:03:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 238 transitions. [2022-11-23 15:03:04,385 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 238 transitions. Word has length 12 [2022-11-23 15:03:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:04,385 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 238 transitions. [2022-11-23 15:03:04,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 238 transitions. [2022-11-23 15:03:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:04,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:04,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:03:04,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash 653916246, now seen corresponding path program 4 times [2022-11-23 15:03:04,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:04,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58480150] [2022-11-23 15:03:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:04,850 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 15:03:04,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:04,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58480150] [2022-11-23 15:03:04,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58480150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:04,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:04,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:04,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320498285] [2022-11-23 15:03:04,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:04,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:04,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:04,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:04,852 INFO L87 Difference]: Start difference. First operand 136 states and 238 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:05,149 INFO L93 Difference]: Finished difference Result 201 states and 346 transitions. [2022-11-23 15:03:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:03:05,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:05,151 INFO L225 Difference]: With dead ends: 201 [2022-11-23 15:03:05,151 INFO L226 Difference]: Without dead ends: 187 [2022-11-23 15:03:05,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:03:05,152 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:05,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-23 15:03:05,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 145. [2022-11-23 15:03:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 142 states have (on average 1.795774647887324) internal successors, (255), 144 states have internal predecessors, (255), 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 15:03:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 255 transitions. [2022-11-23 15:03:05,164 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 255 transitions. Word has length 12 [2022-11-23 15:03:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:05,164 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 255 transitions. [2022-11-23 15:03:05,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 255 transitions. [2022-11-23 15:03:05,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:05,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:05,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:05,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:03:05,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:05,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:05,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1472354848, now seen corresponding path program 5 times [2022-11-23 15:03:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:05,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695622161] [2022-11-23 15:03:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:05,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:05,694 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 15:03:05,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:05,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695622161] [2022-11-23 15:03:05,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695622161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:05,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:05,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:05,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426555099] [2022-11-23 15:03:05,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:05,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:05,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:05,697 INFO L87 Difference]: Start difference. First operand 145 states and 255 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:05,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:05,919 INFO L93 Difference]: Finished difference Result 140 states and 243 transitions. [2022-11-23 15:03:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:03:05,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:05,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:05,920 INFO L225 Difference]: With dead ends: 140 [2022-11-23 15:03:05,920 INFO L226 Difference]: Without dead ends: 126 [2022-11-23 15:03:05,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-11-23 15:03:05,921 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:05,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-23 15:03:05,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 74. [2022-11-23 15:03:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.726027397260274) internal successors, (126), 73 states have internal predecessors, (126), 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 15:03:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 126 transitions. [2022-11-23 15:03:05,935 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 126 transitions. Word has length 12 [2022-11-23 15:03:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:05,935 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 126 transitions. [2022-11-23 15:03:05,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 126 transitions. [2022-11-23 15:03:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:03:05,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:05,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:05,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:03:05,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-23 15:03:05,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:05,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1663500559, now seen corresponding path program 1 times [2022-11-23 15:03:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:05,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50435863] [2022-11-23 15:03:05,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:05,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:06,381 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 15:03:06,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50435863] [2022-11-23 15:03:06,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50435863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:06,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:06,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:03:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628652835] [2022-11-23 15:03:06,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:06,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:03:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:03:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:06,383 INFO L87 Difference]: Start difference. First operand 74 states and 126 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:06,823 INFO L93 Difference]: Finished difference Result 68 states and 115 transitions. [2022-11-23 15:03:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:03:06,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:03:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:06,824 INFO L225 Difference]: With dead ends: 68 [2022-11-23 15:03:06,824 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:03:06,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=192, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:03:06,825 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:06,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:03:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:03:06,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:03:06,826 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 15:03:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:03:06,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-23 15:03:06,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:06,827 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:03:06,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:03:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:03:06,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:03:06,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-23 15:03:06,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-23 15:03:06,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-23 15:03:06,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-23 15:03:06,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:03:06,836 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-11-23 15:03:06,841 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:03:06,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:03:06,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:03:06 BasicIcfg [2022-11-23 15:03:06,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:03:06,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:03:06,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:03:06,846 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:03:06,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:02:51" (3/4) ... [2022-11-23 15:03:06,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:03:06,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 15:03:06,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 15:03:06,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:03:06,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:03:06,905 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:03:06,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:03:06,906 INFO L158 Benchmark]: Toolchain (without parser) took 16818.39ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 114.4MB in the beginning and 208.8MB in the end (delta: -94.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,906 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:03:06,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.53ms. Allocated memory is still 157.3MB. Free memory was 114.4MB in the beginning and 86.8MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.91ms. Allocated memory is still 157.3MB. Free memory was 86.8MB in the beginning and 84.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,908 INFO L158 Benchmark]: Boogie Preprocessor took 29.77ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,908 INFO L158 Benchmark]: RCFGBuilder took 561.92ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 117.2MB in the end (delta: -34.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,908 INFO L158 Benchmark]: TraceAbstraction took 15415.20ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 116.5MB in the beginning and 210.9MB in the end (delta: -94.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,909 INFO L158 Benchmark]: Witness Printer took 60.33ms. Allocated memory is still 283.1MB. Free memory was 210.9MB in the beginning and 208.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:03:06,911 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 113.2MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.53ms. Allocated memory is still 157.3MB. Free memory was 114.4MB in the beginning and 86.8MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.91ms. Allocated memory is still 157.3MB. Free memory was 86.8MB in the beginning and 84.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.77ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 561.92ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 117.2MB in the end (delta: -34.6MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15415.20ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 116.5MB in the beginning and 210.9MB in the end (delta: -94.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 60.33ms. Allocated memory is still 283.1MB. Free memory was 210.9MB in the beginning and 208.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1s, 94 PlacesBefore, 25 PlacesAfterwards, 92 TransitionsBefore, 22 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 2766 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1085, independent: 839, independent conditional: 0, independent unconditional: 839, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 420, independent: 372, independent conditional: 0, independent unconditional: 372, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 420, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 228, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1085, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 420, unknown conditional: 0, unknown unconditional: 420] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: 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 3 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 426 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1410 IncrementalHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 17 mSDtfsCounter, 1410 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=6, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 152 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 1970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 15:03:06,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84440293-e73a-4ee6-80a6-8e1f0d7ea6a6/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