./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs --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 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:37:25,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:37:25,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:37:25,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:37:25,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:37:25,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:37:25,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:37:25,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:37:25,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:37:25,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:37:25,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:37:25,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:37:25,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:37:25,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:37:25,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:37:25,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:37:25,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:37:25,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:37:25,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:37:25,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:37:25,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:37:25,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:37:25,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:37:25,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:37:26,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:37:26,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:37:26,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:37:26,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:37:26,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:37:26,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:37:26,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:37:26,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:37:26,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:37:26,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:37:26,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:37:26,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:37:26,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:37:26,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:37:26,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:37:26,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:37:26,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:37:26,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-19 13:37:26,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:37:26,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:37:26,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:37:26,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:37:26,068 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:37:26,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:37:26,068 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:37:26,069 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:37:26,075 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:37:26,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:37:26,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:37:26,077 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:37:26,077 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:37:26,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:37:26,078 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:37:26,078 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:37:26,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:37:26,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:37:26,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:37:26,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:37:26,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:37:26,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:37:26,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:37:26,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:37:26,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:37:26,081 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 13:37:26,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:37:26,081 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:37:26,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:37:26,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:37:26,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:37:26,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:37:26,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:37:26,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:26,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:37:26,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:37:26,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:37:26,084 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:37:26,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:37:26,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:37:26,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:37:26,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:37:26,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2021-11-19 13:37:26,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:37:26,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:37:26,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:37:26,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:37:26,393 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:37:26,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 13:37:26,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/9f009d02f/232b268949204683ac82babc85947cc7/FLAG811b4d6a5 [2021-11-19 13:37:27,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:37:27,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 13:37:27,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/9f009d02f/232b268949204683ac82babc85947cc7/FLAG811b4d6a5 [2021-11-19 13:37:27,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/9f009d02f/232b268949204683ac82babc85947cc7 [2021-11-19 13:37:27,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:37:27,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:37:27,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:27,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:37:27,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:37:27,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:27" (1/1) ... [2021-11-19 13:37:27,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f1fb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:27, skipping insertion in model container [2021-11-19 13:37:27,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:27" (1/1) ... [2021-11-19 13:37:27,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:37:27,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:37:28,070 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:28,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:37:28,162 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:28,249 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:37:28,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28 WrapperNode [2021-11-19 13:37:28,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:28,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:28,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:37:28,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:37:28,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,347 INFO L137 Inliner]: procedures = 261, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2021-11-19 13:37:28,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:28,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:37:28,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:37:28,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:37:28,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:37:28,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:37:28,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:37:28,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:37:28,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (1/1) ... [2021-11-19 13:37:28,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:28,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:28,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:37:28,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:37:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:37:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:37:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 13:37:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:37:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 13:37:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 13:37:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 13:37:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:37:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:37:28,548 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 13:37:28,695 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:37:28,698 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:37:29,186 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:37:29,198 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:37:29,199 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 13:37:29,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:29 BoogieIcfgContainer [2021-11-19 13:37:29,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:37:29,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:37:29,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:37:29,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:37:29,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:37:27" (1/3) ... [2021-11-19 13:37:29,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e72f2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:29, skipping insertion in model container [2021-11-19 13:37:29,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:28" (2/3) ... [2021-11-19 13:37:29,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e72f2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:29, skipping insertion in model container [2021-11-19 13:37:29,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:29" (3/3) ... [2021-11-19 13:37:29,215 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2021-11-19 13:37:29,222 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 13:37:29,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:37:29,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-19 13:37:29,223 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:37:29,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,304 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,305 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,306 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,308 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,316 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,316 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,316 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:37:29,331 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 13:37:29,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:37:29,410 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:37:29,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-19 13:37:29,430 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:37:29,450 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 127 transitions, 259 flow [2021-11-19 13:37:29,454 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 127 transitions, 259 flow [2021-11-19 13:37:29,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 127 transitions, 259 flow [2021-11-19 13:37:29,527 INFO L129 PetriNetUnfolder]: 6/126 cut-off events. [2021-11-19 13:37:29,527 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 13:37:29,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 126 events. 6/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-11-19 13:37:29,545 INFO L116 LiptonReduction]: Number of co-enabled transitions 4864 [2021-11-19 13:37:31,999 INFO L131 LiptonReduction]: Checked pairs total: 13936 [2021-11-19 13:37:31,999 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-11-19 13:37:32,008 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 56 transitions, 117 flow [2021-11-19 13:37:32,042 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:37:32,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:32,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:32,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash 247886937, now seen corresponding path program 1 times [2021-11-19 13:37:32,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:32,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153942139] [2021-11-19 13:37:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:32,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:32,292 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:32,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153942139] [2021-11-19 13:37:32,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153942139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:32,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:32,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 13:37:32,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629653706] [2021-11-19 13:37:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:32,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:37:32,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:37:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:37:32,330 INFO L87 Difference]: Start difference. First operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:32,438 INFO L93 Difference]: Finished difference Result 596 states and 1189 transitions. [2021-11-19 13:37:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:37:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:37:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:32,468 INFO L225 Difference]: With dead ends: 596 [2021-11-19 13:37:32,468 INFO L226 Difference]: Without dead ends: 596 [2021-11-19 13:37:32,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:37:32,478 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:32,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:32,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-19 13:37:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-11-19 13:37:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 582 states have (on average 2.042955326460481) internal successors, (1189), 595 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1189 transitions. [2021-11-19 13:37:32,593 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1189 transitions. Word has length 11 [2021-11-19 13:37:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:32,594 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 1189 transitions. [2021-11-19 13:37:32,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:32,596 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1189 transitions. [2021-11-19 13:37:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 13:37:32,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:32,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:32,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 13:37:32,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 893259367, now seen corresponding path program 1 times [2021-11-19 13:37:32,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:32,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352283218] [2021-11-19 13:37:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:32,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:32,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:32,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352283218] [2021-11-19 13:37:32,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352283218] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:32,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498330402] [2021-11-19 13:37:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:32,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:32,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:32,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:32,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 13:37:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:32,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:37:32,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:32,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:32,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498330402] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:32,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [17146442] [2021-11-19 13:37:32,909 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:37:32,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:37:32,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-19 13:37:32,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408202742] [2021-11-19 13:37:32,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:32,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:32,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:37:32,932 INFO L87 Difference]: Start difference. First operand 596 states and 1189 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:33,022 INFO L93 Difference]: Finished difference Result 599 states and 1192 transitions. [2021-11-19 13:37:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:33,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 [2021-11-19 13:37:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:33,027 INFO L225 Difference]: With dead ends: 599 [2021-11-19 13:37:33,027 INFO L226 Difference]: Without dead ends: 599 [2021-11-19 13:37:33,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:37:33,029 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:33,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:37:33,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-19 13:37:33,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-11-19 13:37:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 585 states have (on average 2.0376068376068375) internal successors, (1192), 598 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1192 transitions. [2021-11-19 13:37:33,050 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1192 transitions. Word has length 12 [2021-11-19 13:37:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:33,051 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 1192 transitions. [2021-11-19 13:37:33,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1192 transitions. [2021-11-19 13:37:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 13:37:33,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:33,052 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:33,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:33,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:33,279 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1125939239, now seen corresponding path program 2 times [2021-11-19 13:37:33,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:33,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329795233] [2021-11-19 13:37:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:33,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:33,372 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:33,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329795233] [2021-11-19 13:37:33,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329795233] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:33,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732335041] [2021-11-19 13:37:33,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:37:33,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:33,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:33,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:33,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 13:37:33,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:37:33,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:37:33,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:37:33,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:33,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:37:33,625 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-19 13:37:33,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:37:33,667 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-19 13:37:33,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:37:33,734 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-19 13:37:33,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 13:37:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:37:33,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:37:33,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732335041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:33,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:33,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 11 [2021-11-19 13:37:33,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264262392] [2021-11-19 13:37:33,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:33,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:37:33,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:37:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:37:33,900 INFO L87 Difference]: Start difference. First operand 599 states and 1192 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2021-11-19 13:37:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:34,575 INFO L93 Difference]: Finished difference Result 790 states and 1574 transitions. [2021-11-19 13:37:34,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:34,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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 15 [2021-11-19 13:37:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:34,587 INFO L225 Difference]: With dead ends: 790 [2021-11-19 13:37:34,588 INFO L226 Difference]: Without dead ends: 790 [2021-11-19 13:37:34,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:37:34,596 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 72 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:34,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 27 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:37:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-11-19 13:37:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 726. [2021-11-19 13:37:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 712 states have (on average 2.0308988764044944) internal successors, (1446), 725 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1446 transitions. [2021-11-19 13:37:34,637 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1446 transitions. Word has length 15 [2021-11-19 13:37:34,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:34,638 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 1446 transitions. [2021-11-19 13:37:34,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2021-11-19 13:37:34,639 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1446 transitions. [2021-11-19 13:37:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 13:37:34,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:34,642 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:34,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:34,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:34,859 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:34,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash 837250210, now seen corresponding path program 1 times [2021-11-19 13:37:34,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:34,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868259782] [2021-11-19 13:37:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:34,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:34,993 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:34,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868259782] [2021-11-19 13:37:34,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868259782] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:34,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796796158] [2021-11-19 13:37:34,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:34,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:34,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:34,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:35,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 13:37:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:35,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:37:35,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:35,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:35,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796796158] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:35,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407035315] [2021-11-19 13:37:35,260 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:37:35,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:37:35,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-19 13:37:35,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136836059] [2021-11-19 13:37:35,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:35,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:37:35,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:35,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:37:35,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:37:35,265 INFO L87 Difference]: Start difference. First operand 726 states and 1446 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:35,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:35,360 INFO L93 Difference]: Finished difference Result 732 states and 1452 transitions. [2021-11-19 13:37:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:37:35,361 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 13:37:35,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:35,367 INFO L225 Difference]: With dead ends: 732 [2021-11-19 13:37:35,367 INFO L226 Difference]: Without dead ends: 732 [2021-11-19 13:37:35,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:37:35,373 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:35,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:37:35,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-19 13:37:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2021-11-19 13:37:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 718 states have (on average 2.022284122562674) internal successors, (1452), 731 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1452 transitions. [2021-11-19 13:37:35,408 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1452 transitions. Word has length 15 [2021-11-19 13:37:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:35,408 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1452 transitions. [2021-11-19 13:37:35,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1452 transitions. [2021-11-19 13:37:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 13:37:35,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:35,410 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:35,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:35,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:35,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1539588578, now seen corresponding path program 2 times [2021-11-19 13:37:35,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:35,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568168264] [2021-11-19 13:37:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:35,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:35,846 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:35,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568168264] [2021-11-19 13:37:35,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568168264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:35,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:35,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 13:37:35,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795744643] [2021-11-19 13:37:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:35,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:37:35,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:37:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:35,848 INFO L87 Difference]: Start difference. First operand 732 states and 1452 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2021-11-19 13:37:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:36,210 INFO L93 Difference]: Finished difference Result 822 states and 1632 transitions. [2021-11-19 13:37:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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 21 [2021-11-19 13:37:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:36,218 INFO L225 Difference]: With dead ends: 822 [2021-11-19 13:37:36,218 INFO L226 Difference]: Without dead ends: 822 [2021-11-19 13:37:36,219 INFO L932 BasicCegarLoop]: 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 [2021-11-19 13:37:36,220 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:36,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 47 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:37:36,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-11-19 13:37:36,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 790. [2021-11-19 13:37:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 777 states have (on average 2.018018018018018) internal successors, (1568), 789 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1568 transitions. [2021-11-19 13:37:36,253 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1568 transitions. Word has length 21 [2021-11-19 13:37:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:36,254 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1568 transitions. [2021-11-19 13:37:36,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2021-11-19 13:37:36,254 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1568 transitions. [2021-11-19 13:37:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 13:37:36,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:36,256 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:36,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 13:37:36,257 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2084949207, now seen corresponding path program 1 times [2021-11-19 13:37:36,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:36,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702903718] [2021-11-19 13:37:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:36,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:36,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:36,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702903718] [2021-11-19 13:37:36,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702903718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:36,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:36,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 13:37:36,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374917169] [2021-11-19 13:37:36,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:36,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:37:36,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:36,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:37:36,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:37:36,367 INFO L87 Difference]: Start difference. First operand 790 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:36,428 INFO L93 Difference]: Finished difference Result 1155 states and 2298 transitions. [2021-11-19 13:37:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:37:36,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-19 13:37:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:36,436 INFO L225 Difference]: With dead ends: 1155 [2021-11-19 13:37:36,437 INFO L226 Difference]: Without dead ends: 1155 [2021-11-19 13:37:36,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:37:36,438 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 33 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:36,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 72 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-11-19 13:37:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 807. [2021-11-19 13:37:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 794 states have (on average 2.017632241813602) internal successors, (1602), 806 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1602 transitions. [2021-11-19 13:37:36,490 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1602 transitions. Word has length 21 [2021-11-19 13:37:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:36,491 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 1602 transitions. [2021-11-19 13:37:36,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1602 transitions. [2021-11-19 13:37:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:37:36,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:36,492 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:36,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 13:37:36,493 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2122961798, now seen corresponding path program 1 times [2021-11-19 13:37:36,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:36,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298800143] [2021-11-19 13:37:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:36,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:36,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:36,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298800143] [2021-11-19 13:37:36,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298800143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:36,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:36,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 13:37:36,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179407309] [2021-11-19 13:37:36,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:36,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:37:36,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:36,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:37:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:36,619 INFO L87 Difference]: Start difference. First operand 807 states and 1602 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:37,113 INFO L93 Difference]: Finished difference Result 932 states and 1852 transitions. [2021-11-19 13:37:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:37,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 27 [2021-11-19 13:37:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:37,119 INFO L225 Difference]: With dead ends: 932 [2021-11-19 13:37:37,119 INFO L226 Difference]: Without dead ends: 902 [2021-11-19 13:37:37,120 INFO L932 BasicCegarLoop]: 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 [2021-11-19 13:37:37,120 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:37,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 27 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:37:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-11-19 13:37:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2021-11-19 13:37:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 889 states have (on average 2.0112485939257594) internal successors, (1788), 901 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1788 transitions. [2021-11-19 13:37:37,151 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1788 transitions. Word has length 27 [2021-11-19 13:37:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:37,151 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1788 transitions. [2021-11-19 13:37:37,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1788 transitions. [2021-11-19 13:37:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:37:37,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:37,152 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:37,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 13:37:37,153 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:37,153 INFO L85 PathProgramCache]: Analyzing trace with hash 603876006, now seen corresponding path program 1 times [2021-11-19 13:37:37,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:37,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233698520] [2021-11-19 13:37:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:37,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:37,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:37,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233698520] [2021-11-19 13:37:37,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233698520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:37,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:37,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 13:37:37,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824695739] [2021-11-19 13:37:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:37,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:37:37,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:37,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:37:37,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:37,265 INFO L87 Difference]: Start difference. First operand 902 states and 1788 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:37,527 INFO L93 Difference]: Finished difference Result 990 states and 1964 transitions. [2021-11-19 13:37:37,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:37,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 27 [2021-11-19 13:37:37,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:37,535 INFO L225 Difference]: With dead ends: 990 [2021-11-19 13:37:37,535 INFO L226 Difference]: Without dead ends: 990 [2021-11-19 13:37:37,535 INFO L932 BasicCegarLoop]: 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 [2021-11-19 13:37:37,536 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:37,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 43 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:37:37,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-11-19 13:37:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 967. [2021-11-19 13:37:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 954 states have (on average 2.010482180293501) internal successors, (1918), 966 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1918 transitions. [2021-11-19 13:37:37,568 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1918 transitions. Word has length 27 [2021-11-19 13:37:37,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:37,569 INFO L470 AbstractCegarLoop]: Abstraction has 967 states and 1918 transitions. [2021-11-19 13:37:37,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1918 transitions. [2021-11-19 13:37:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 13:37:37,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:37,570 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:37,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 13:37:37,571 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash 758090864, now seen corresponding path program 1 times [2021-11-19 13:37:37,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:37,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728867883] [2021-11-19 13:37:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:37,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:37,759 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:37:37,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:37,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728867883] [2021-11-19 13:37:37,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728867883] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:37,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539698850] [2021-11-19 13:37:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:37,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:37,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:37,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 13:37:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:37,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:37:37,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:37,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:37:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:37,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:37,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2021-11-19 13:37:38,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2021-11-19 13:37:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:38,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539698850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:38,041 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:38,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 12 [2021-11-19 13:37:38,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752959286] [2021-11-19 13:37:38,041 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:38,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:38,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:38,042 INFO L87 Difference]: Start difference. First operand 967 states and 1918 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:38,251 INFO L93 Difference]: Finished difference Result 2563 states and 5080 transitions. [2021-11-19 13:37:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:37:38,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 31 [2021-11-19 13:37:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:38,271 INFO L225 Difference]: With dead ends: 2563 [2021-11-19 13:37:38,271 INFO L226 Difference]: Without dead ends: 2563 [2021-11-19 13:37:38,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:37:38,272 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 177 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:38,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 275 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:37:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-19 13:37:38,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 1024. [2021-11-19 13:37:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1011 states have (on average 1.9841740850642928) internal successors, (2006), 1023 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 2006 transitions. [2021-11-19 13:37:38,364 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 2006 transitions. Word has length 31 [2021-11-19 13:37:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:38,366 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 2006 transitions. [2021-11-19 13:37:38,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 2006 transitions. [2021-11-19 13:37:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 13:37:38,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:38,369 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:38,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:38,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:38,591 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1916301646, now seen corresponding path program 2 times [2021-11-19 13:37:38,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:38,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651987677] [2021-11-19 13:37:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:38,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:37:38,809 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:38,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651987677] [2021-11-19 13:37:38,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651987677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:38,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375259001] [2021-11-19 13:37:38,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:37:38,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:38,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:38,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:38,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 13:37:38,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:37:38,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:37:38,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:37:38,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:38,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:37:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:39,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:39,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-19 13:37:39,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-19 13:37:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:39,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375259001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:39,115 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:39,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 12 [2021-11-19 13:37:39,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016564630] [2021-11-19 13:37:39,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:39,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:39,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:39,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:37:39,117 INFO L87 Difference]: Start difference. First operand 1024 states and 2006 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:39,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:39,433 INFO L93 Difference]: Finished difference Result 2863 states and 5653 transitions. [2021-11-19 13:37:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:37:39,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 31 [2021-11-19 13:37:39,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:39,460 INFO L225 Difference]: With dead ends: 2863 [2021-11-19 13:37:39,460 INFO L226 Difference]: Without dead ends: 2863 [2021-11-19 13:37:39,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:37:39,462 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 211 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:39,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 223 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:37:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-11-19 13:37:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1037. [2021-11-19 13:37:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1024 states have (on average 1.984375) internal successors, (2032), 1036 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 2032 transitions. [2021-11-19 13:37:39,534 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 2032 transitions. Word has length 31 [2021-11-19 13:37:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:39,534 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 2032 transitions. [2021-11-19 13:37:39,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 2032 transitions. [2021-11-19 13:37:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 13:37:39,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:39,536 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:39,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:39,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 13:37:39,763 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1592291186, now seen corresponding path program 3 times [2021-11-19 13:37:39,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:39,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596248813] [2021-11-19 13:37:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:39,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:37:40,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:40,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596248813] [2021-11-19 13:37:40,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596248813] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:40,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859217527] [2021-11-19 13:37:40,010 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:37:40,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:40,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:40,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 13:37:40,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:37:40,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:37:40,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 13:37:40,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:40,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:37:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:40,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:40,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2021-11-19 13:37:40,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2021-11-19 13:37:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:40,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859217527] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:40,437 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:37:40,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 11 [2021-11-19 13:37:40,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267676111] [2021-11-19 13:37:40,437 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:40,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:37:40,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:40,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:37:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:37:40,439 INFO L87 Difference]: Start difference. First operand 1037 states and 2032 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:40,687 INFO L93 Difference]: Finished difference Result 2283 states and 4498 transitions. [2021-11-19 13:37:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:37:40,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-11-19 13:37:40,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:40,707 INFO L225 Difference]: With dead ends: 2283 [2021-11-19 13:37:40,707 INFO L226 Difference]: Without dead ends: 2283 [2021-11-19 13:37:40,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:37:40,709 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 340 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:40,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 148 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:37:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2021-11-19 13:37:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1049. [2021-11-19 13:37:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1036 states have (on average 1.9845559845559846) internal successors, (2056), 1048 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 2056 transitions. [2021-11-19 13:37:40,768 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 2056 transitions. Word has length 31 [2021-11-19 13:37:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:40,768 INFO L470 AbstractCegarLoop]: Abstraction has 1049 states and 2056 transitions. [2021-11-19 13:37:40,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 2056 transitions. [2021-11-19 13:37:40,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 13:37:40,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:40,770 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:40,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:40,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:40,985 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2037612927, now seen corresponding path program 1 times [2021-11-19 13:37:40,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:40,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716789557] [2021-11-19 13:37:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:40,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:41,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:41,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716789557] [2021-11-19 13:37:41,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716789557] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:41,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689963468] [2021-11-19 13:37:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:41,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:41,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:41,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:41,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 13:37:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:41,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:37:41,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:41,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:41,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689963468] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:41,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1464163056] [2021-11-19 13:37:41,327 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:37:41,328 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:37:41,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-19 13:37:41,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863559979] [2021-11-19 13:37:41,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:41,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:37:41,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:41,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:37:41,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:37:41,331 INFO L87 Difference]: Start difference. First operand 1049 states and 2056 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:41,505 INFO L93 Difference]: Finished difference Result 2629 states and 5216 transitions. [2021-11-19 13:37:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:37:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 35 [2021-11-19 13:37:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:41,556 INFO L225 Difference]: With dead ends: 2629 [2021-11-19 13:37:41,556 INFO L226 Difference]: Without dead ends: 2629 [2021-11-19 13:37:41,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:37:41,558 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 152 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:41,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 202 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:37:41,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2021-11-19 13:37:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2494. [2021-11-19 13:37:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2481 states have (on average 2.047964530431278) internal successors, (5081), 2493 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 5081 transitions. [2021-11-19 13:37:41,668 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 5081 transitions. Word has length 35 [2021-11-19 13:37:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:41,668 INFO L470 AbstractCegarLoop]: Abstraction has 2494 states and 5081 transitions. [2021-11-19 13:37:41,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:37:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 5081 transitions. [2021-11-19 13:37:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:37:41,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:41,671 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:41,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:41,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:41,885 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:37:41,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:41,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1919179223, now seen corresponding path program 1 times [2021-11-19 13:37:41,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:41,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904045524] [2021-11-19 13:37:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:41,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:42,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:42,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904045524] [2021-11-19 13:37:42,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904045524] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:42,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992086487] [2021-11-19 13:37:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:42,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:42,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:42,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 13:37:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:43,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 13:37:43,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:43,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:37:43,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:37:43,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 13:37:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:37:43,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:43,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:37:44,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-19 13:37:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:37:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-19 13:37:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:37:44,782 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:37:44,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 74 treesize of output 87 [2021-11-19 13:37:44,882 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:44,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:49,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:49,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:37:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:37:50,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992086487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:37:50,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1385375068] [2021-11-19 13:37:50,012 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:37:50,012 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:37:50,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 14] total 38 [2021-11-19 13:37:50,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247401917] [2021-11-19 13:37:50,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:50,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-19 13:37:50,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:50,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-19 13:37:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 13:37:50,017 INFO L87 Difference]: Start difference. First operand 2494 states and 5081 transitions. Second operand has 39 states, 38 states have (on average 2.710526315789474) internal successors, (103), 39 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:03,865 INFO L93 Difference]: Finished difference Result 12131 states and 24727 transitions. [2021-11-19 13:38:03,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-19 13:38:03,866 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.710526315789474) internal successors, (103), 39 states have internal predecessors, (103), 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 45 [2021-11-19 13:38:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:03,946 INFO L225 Difference]: With dead ends: 12131 [2021-11-19 13:38:03,946 INFO L226 Difference]: Without dead ends: 12131 [2021-11-19 13:38:03,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 85 SyntacticMatches, 13 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=1753, Invalid=5729, Unknown=0, NotChecked=0, Total=7482 [2021-11-19 13:38:03,951 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 819 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 6581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2594 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:03,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 292 Invalid, 6581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 3817 Invalid, 0 Unknown, 2594 Unchecked, 4.4s Time] [2021-11-19 13:38:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12131 states. [2021-11-19 13:38:04,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12131 to 5911. [2021-11-19 13:38:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5898 states have (on average 2.150050864699898) internal successors, (12681), 5910 states have internal predecessors, (12681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 12681 transitions. [2021-11-19 13:38:04,366 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 12681 transitions. Word has length 45 [2021-11-19 13:38:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:04,366 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 12681 transitions. [2021-11-19 13:38:04,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.710526315789474) internal successors, (103), 39 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 12681 transitions. [2021-11-19 13:38:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:38:04,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:04,372 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:04,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:04,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-19 13:38:04,594 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:38:04,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 631025235, now seen corresponding path program 1 times [2021-11-19 13:38:04,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:04,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315984913] [2021-11-19 13:38:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:04,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:05,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:05,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315984913] [2021-11-19 13:38:05,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315984913] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:05,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651211829] [2021-11-19 13:38:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:05,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:05,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:05,487 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:05,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 13:38:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:05,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 13:38:05,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:06,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:38:06,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:38:06,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:38:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 13:38:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-19 13:38:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-19 13:38:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:06,956 INFO L354 Elim1Store]: treesize reduction 354, result has 14.7 percent of original size [2021-11-19 13:38:06,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 100 [2021-11-19 13:38:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:15,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:16,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,832 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:16,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:17,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651211829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:17,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040988053] [2021-11-19 13:38:17,485 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:38:17,485 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:38:17,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 14] total 36 [2021-11-19 13:38:17,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715319683] [2021-11-19 13:38:17,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:17,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-19 13:38:17,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-19 13:38:17,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1099, Unknown=3, NotChecked=0, Total=1332 [2021-11-19 13:38:17,488 INFO L87 Difference]: Start difference. First operand 5911 states and 12681 transitions. Second operand has 37 states, 36 states have (on average 2.861111111111111) internal successors, (103), 37 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:35,246 INFO L93 Difference]: Finished difference Result 11704 states and 23848 transitions. [2021-11-19 13:38:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-19 13:38:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.861111111111111) internal successors, (103), 37 states have internal predecessors, (103), 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 45 [2021-11-19 13:38:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:35,284 INFO L225 Difference]: With dead ends: 11704 [2021-11-19 13:38:35,284 INFO L226 Difference]: Without dead ends: 11704 [2021-11-19 13:38:35,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=1039, Invalid=3646, Unknown=7, NotChecked=0, Total=4692 [2021-11-19 13:38:35,287 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 925 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 4267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1954 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:35,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 265 Invalid, 4267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2183 Invalid, 0 Unknown, 1954 Unchecked, 2.1s Time] [2021-11-19 13:38:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11704 states. [2021-11-19 13:38:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11704 to 6069. [2021-11-19 13:38:35,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6056 states have (on average 2.147291941875826) internal successors, (13004), 6068 states have internal predecessors, (13004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 13004 transitions. [2021-11-19 13:38:35,576 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 13004 transitions. Word has length 45 [2021-11-19 13:38:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:35,577 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 13004 transitions. [2021-11-19 13:38:35,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.861111111111111) internal successors, (103), 37 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 13004 transitions. [2021-11-19 13:38:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:38:35,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:35,582 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:35,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:35,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-19 13:38:35,807 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:38:35,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:35,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1762891387, now seen corresponding path program 1 times [2021-11-19 13:38:35,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:35,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139025526] [2021-11-19 13:38:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:35,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:36,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:36,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139025526] [2021-11-19 13:38:36,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139025526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:36,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272766037] [2021-11-19 13:38:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:36,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:36,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:36,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:36,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 13:38:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:36,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 13:38:36,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:36,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:38:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:36,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:38:36,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:36,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:36,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:38:37,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,031 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:37,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:38:37,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:37,113 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:37,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:38:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:37,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:37,532 INFO L354 Elim1Store]: treesize reduction 186, result has 17.3 percent of original size [2021-11-19 13:38:37,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 53 [2021-11-19 13:38:37,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-11-19 13:38:37,546 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-19 13:38:37,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 38 [2021-11-19 13:38:37,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,597 INFO L354 Elim1Store]: treesize reduction 87, result has 29.8 percent of original size [2021-11-19 13:38:37,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 49 [2021-11-19 13:38:37,607 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:38:37,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 49 [2021-11-19 13:38:37,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,630 INFO L354 Elim1Store]: treesize reduction 25, result has 13.8 percent of original size [2021-11-19 13:38:37,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 24 [2021-11-19 13:38:37,641 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,641 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,642 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,677 INFO L354 Elim1Store]: treesize reduction 87, result has 29.8 percent of original size [2021-11-19 13:38:37,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 51 [2021-11-19 13:38:37,687 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:38:37,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 51 [2021-11-19 13:38:37,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:37,702 INFO L354 Elim1Store]: treesize reduction 25, result has 13.8 percent of original size [2021-11-19 13:38:37,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 26 [2021-11-19 13:38:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:38,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272766037] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:38,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [947086724] [2021-11-19 13:38:38,192 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:38:38,193 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:38:38,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2021-11-19 13:38:38,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261002800] [2021-11-19 13:38:38,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:38,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-19 13:38:38,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:38,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 13:38:38,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:38:38,196 INFO L87 Difference]: Start difference. First operand 6069 states and 13004 transitions. Second operand has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:44,617 INFO L93 Difference]: Finished difference Result 11793 states and 24045 transitions. [2021-11-19 13:38:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-19 13:38:44,617 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 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 45 [2021-11-19 13:38:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:44,664 INFO L225 Difference]: With dead ends: 11793 [2021-11-19 13:38:44,664 INFO L226 Difference]: Without dead ends: 11793 [2021-11-19 13:38:44,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=807, Invalid=2975, Unknown=0, NotChecked=0, Total=3782 [2021-11-19 13:38:44,667 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 857 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 3398 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 3548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 3398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:44,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 272 Invalid, 3548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 3398 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-19 13:38:44,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2021-11-19 13:38:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 6387. [2021-11-19 13:38:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 6374 states have (on average 2.141669281455915) internal successors, (13651), 6386 states have internal predecessors, (13651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 13651 transitions. [2021-11-19 13:38:44,974 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 13651 transitions. Word has length 45 [2021-11-19 13:38:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:44,975 INFO L470 AbstractCegarLoop]: Abstraction has 6387 states and 13651 transitions. [2021-11-19 13:38:44,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 13651 transitions. [2021-11-19 13:38:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:38:44,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:44,980 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:45,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:45,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-19 13:38:45,195 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:38:45,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2104184183, now seen corresponding path program 2 times [2021-11-19 13:38:45,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:45,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89002015] [2021-11-19 13:38:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:45,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:46,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:46,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89002015] [2021-11-19 13:38:46,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89002015] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:46,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74748542] [2021-11-19 13:38:46,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:38:46,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:46,165 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:46,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 13:38:46,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:38:46,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:46,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-19 13:38:46,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:46,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:38:46,411 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:38:46,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-11-19 13:38:46,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:38:46,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:38:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:38:46,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 13:38:46,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-19 13:38:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-19 13:38:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:46,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-19 13:38:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:47,376 INFO L354 Elim1Store]: treesize reduction 541, result has 12.5 percent of original size [2021-11-19 13:38:47,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 102 treesize of output 119 [2021-11-19 13:38:51,698 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:38:51,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:54,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:38:54,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2021-11-19 13:38:54,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2021-11-19 13:38:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:38:54,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74748542] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:54,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:38:54,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11, 12] total 33 [2021-11-19 13:38:54,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651244539] [2021-11-19 13:38:54,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:38:54,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:38:54,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:38:54,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=885, Unknown=4, NotChecked=0, Total=1122 [2021-11-19 13:38:54,835 INFO L87 Difference]: Start difference. First operand 6387 states and 13651 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:58,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:58,295 INFO L93 Difference]: Finished difference Result 9458 states and 20131 transitions. [2021-11-19 13:38:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 13:38:58,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 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 45 [2021-11-19 13:38:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:58,353 INFO L225 Difference]: With dead ends: 9458 [2021-11-19 13:38:58,354 INFO L226 Difference]: Without dead ends: 9458 [2021-11-19 13:38:58,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=349, Invalid=1627, Unknown=4, NotChecked=0, Total=1980 [2021-11-19 13:38:58,356 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 73 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 535 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:58,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 37 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 319 Invalid, 0 Unknown, 535 Unchecked, 0.4s Time] [2021-11-19 13:38:58,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9458 states. [2021-11-19 13:38:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9458 to 6662. [2021-11-19 13:38:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 6649 states have (on average 2.137313881786735) internal successors, (14211), 6661 states have internal predecessors, (14211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 14211 transitions. [2021-11-19 13:38:58,583 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 14211 transitions. Word has length 45 [2021-11-19 13:38:58,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:58,584 INFO L470 AbstractCegarLoop]: Abstraction has 6662 states and 14211 transitions. [2021-11-19 13:38:58,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:38:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 14211 transitions. [2021-11-19 13:38:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:38:58,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:58,589 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:58,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:58,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:58,803 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:38:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1746596231, now seen corresponding path program 3 times [2021-11-19 13:38:58,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:58,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367203794] [2021-11-19 13:38:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:58,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:38:59,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:59,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367203794] [2021-11-19 13:38:59,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367203794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:59,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282422603] [2021-11-19 13:38:59,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:38:59,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:59,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:59,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 13:38:59,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:38:59,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:59,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-19 13:38:59,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:00,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:39:00,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:39:00,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:39:00,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 13:39:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-19 13:39:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-19 13:39:00,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-19 13:39:00,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:00,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:01,084 INFO L354 Elim1Store]: treesize reduction 500, result has 12.9 percent of original size [2021-11-19 13:39:01,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 116 [2021-11-19 13:39:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:09,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:13,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,151 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:13,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282422603] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:39:13,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2015331073] [2021-11-19 13:39:13,957 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:39:13,958 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:39:13,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 37 [2021-11-19 13:39:13,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610585277] [2021-11-19 13:39:13,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:39:13,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-19 13:39:13,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:39:13,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-19 13:39:13,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1144, Unknown=3, NotChecked=0, Total=1406 [2021-11-19 13:39:13,961 INFO L87 Difference]: Start difference. First operand 6662 states and 14211 transitions. Second operand has 38 states, 37 states have (on average 2.7837837837837838) internal successors, (103), 38 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:37,674 INFO L93 Difference]: Finished difference Result 13245 states and 27013 transitions. [2021-11-19 13:39:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-19 13:39:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.7837837837837838) internal successors, (103), 38 states have internal predecessors, (103), 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 45 [2021-11-19 13:39:37,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:37,721 INFO L225 Difference]: With dead ends: 13245 [2021-11-19 13:39:37,721 INFO L226 Difference]: Without dead ends: 13245 [2021-11-19 13:39:37,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 77 SyntacticMatches, 18 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 33.9s TimeCoverageRelationStatistics Valid=1201, Invalid=4494, Unknown=5, NotChecked=0, Total=5700 [2021-11-19 13:39:37,726 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 937 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1119 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:37,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 342 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2922 Invalid, 0 Unknown, 1119 Unchecked, 2.6s Time] [2021-11-19 13:39:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13245 states. [2021-11-19 13:39:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13245 to 6641. [2021-11-19 13:39:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6628 states have (on average 2.136843693421847) internal successors, (14163), 6640 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 14163 transitions. [2021-11-19 13:39:38,067 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 14163 transitions. Word has length 45 [2021-11-19 13:39:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:38,067 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 14163 transitions. [2021-11-19 13:39:38,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.7837837837837838) internal successors, (103), 38 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:38,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 14163 transitions. [2021-11-19 13:39:38,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:39:38,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:38,072 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:38,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:38,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-19 13:39:38,299 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:39:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:38,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1406786596, now seen corresponding path program 1 times [2021-11-19 13:39:38,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:39:38,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352085254] [2021-11-19 13:39:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:38,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:39:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:38,661 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:39:38,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352085254] [2021-11-19 13:39:38,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352085254] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:38,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456277713] [2021-11-19 13:39:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:38,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:39:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:39:38,663 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:39:38,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 13:39:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:38,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 13:39:38,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:39,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:39:39,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:39:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:39:39,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,289 INFO L354 Elim1Store]: treesize reduction 90, result has 22.4 percent of original size [2021-11-19 13:39:39,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 56 [2021-11-19 13:39:39,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:39,388 INFO L354 Elim1Store]: treesize reduction 79, result has 13.2 percent of original size [2021-11-19 13:39:39,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 68 [2021-11-19 13:39:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:39,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:39,718 INFO L354 Elim1Store]: treesize reduction 188, result has 16.4 percent of original size [2021-11-19 13:39:39,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 51 [2021-11-19 13:39:39,725 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:39:39,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 51 [2021-11-19 13:39:39,740 INFO L354 Elim1Store]: treesize reduction 57, result has 6.6 percent of original size [2021-11-19 13:39:39,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 42 [2021-11-19 13:39:39,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,792 INFO L354 Elim1Store]: treesize reduction 85, result has 31.5 percent of original size [2021-11-19 13:39:39,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 53 [2021-11-19 13:39:39,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-11-19 13:39:39,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-11-19 13:39:39,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,861 INFO L354 Elim1Store]: treesize reduction 87, result has 29.8 percent of original size [2021-11-19 13:39:39,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 49 [2021-11-19 13:39:39,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2021-11-19 13:39:39,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:39,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-19 13:39:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:40,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456277713] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:39:40,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835318002] [2021-11-19 13:39:40,327 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:39:40,327 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:39:40,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2021-11-19 13:39:40,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094032082] [2021-11-19 13:39:40,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:39:40,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-19 13:39:40,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:39:40,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 13:39:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:39:40,330 INFO L87 Difference]: Start difference. First operand 6641 states and 14163 transitions. Second operand has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:47,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:47,759 INFO L93 Difference]: Finished difference Result 12503 states and 25475 transitions. [2021-11-19 13:39:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-19 13:39:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 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 45 [2021-11-19 13:39:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:47,784 INFO L225 Difference]: With dead ends: 12503 [2021-11-19 13:39:47,785 INFO L226 Difference]: Without dead ends: 12503 [2021-11-19 13:39:47,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=958, Invalid=4154, Unknown=0, NotChecked=0, Total=5112 [2021-11-19 13:39:47,787 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 804 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 4351 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 4722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:47,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 385 Invalid, 4722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4351 Invalid, 0 Unknown, 196 Unchecked, 5.2s Time] [2021-11-19 13:39:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12503 states. [2021-11-19 13:39:48,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12503 to 6675. [2021-11-19 13:39:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 6662 states have (on average 2.1362954067847495) internal successors, (14232), 6674 states have internal predecessors, (14232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 14232 transitions. [2021-11-19 13:39:48,035 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 14232 transitions. Word has length 45 [2021-11-19 13:39:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:48,035 INFO L470 AbstractCegarLoop]: Abstraction has 6675 states and 14232 transitions. [2021-11-19 13:39:48,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.4) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:39:48,036 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 14232 transitions. [2021-11-19 13:39:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:39:48,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:48,040 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:48,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:48,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-19 13:39:48,262 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:39:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1281954141, now seen corresponding path program 4 times [2021-11-19 13:39:48,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:39:48,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276258985] [2021-11-19 13:39:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:48,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:39:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:39:49,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:39:49,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276258985] [2021-11-19 13:39:49,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276258985] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:49,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570479024] [2021-11-19 13:39:49,237 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:39:49,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:39:49,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:39:49,243 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:39:49,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 13:39:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:49,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-19 13:39:49,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:49,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:39:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:39:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:39:49,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:49,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:39:50,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:39:50,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-19 13:39:50,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:39:50,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-19 13:39:50,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:50,777 INFO L354 Elim1Store]: treesize reduction 615, result has 10.7 percent of original size [2021-11-19 13:39:50,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 111 treesize of output 119 [2021-11-19 13:40:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:00,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:03,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:03,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:04,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570479024] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:04,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [831923321] [2021-11-19 13:40:04,235 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:40:04,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:40:04,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 39 [2021-11-19 13:40:04,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10264546] [2021-11-19 13:40:04,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:40:04,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-19 13:40:04,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:40:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-19 13:40:04,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1275, Unknown=4, NotChecked=0, Total=1560 [2021-11-19 13:40:04,254 INFO L87 Difference]: Start difference. First operand 6675 states and 14232 transitions. Second operand has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:22,784 INFO L93 Difference]: Finished difference Result 12382 states and 25225 transitions. [2021-11-19 13:40:22,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-19 13:40:22,785 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 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 45 [2021-11-19 13:40:22,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:22,809 INFO L225 Difference]: With dead ends: 12382 [2021-11-19 13:40:22,809 INFO L226 Difference]: Without dead ends: 12382 [2021-11-19 13:40:22,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 75 SyntacticMatches, 13 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=1140, Invalid=3963, Unknown=9, NotChecked=0, Total=5112 [2021-11-19 13:40:22,812 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 875 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 5955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2963 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:22,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 303 Invalid, 5955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2850 Invalid, 0 Unknown, 2963 Unchecked, 2.6s Time] [2021-11-19 13:40:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12382 states. [2021-11-19 13:40:23,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12382 to 6609. [2021-11-19 13:40:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6609 states, 6596 states have (on average 2.136294724075197) internal successors, (14091), 6608 states have internal predecessors, (14091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6609 states to 6609 states and 14091 transitions. [2021-11-19 13:40:23,090 INFO L78 Accepts]: Start accepts. Automaton has 6609 states and 14091 transitions. Word has length 45 [2021-11-19 13:40:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:23,091 INFO L470 AbstractCegarLoop]: Abstraction has 6609 states and 14091 transitions. [2021-11-19 13:40:23,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6609 states and 14091 transitions. [2021-11-19 13:40:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:40:23,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:23,097 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:23,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:23,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:23,315 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:40:23,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1267890921, now seen corresponding path program 2 times [2021-11-19 13:40:23,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:40:23,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634013193] [2021-11-19 13:40:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:23,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:40:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:23,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:40:23,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634013193] [2021-11-19 13:40:23,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634013193] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:40:23,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833064530] [2021-11-19 13:40:23,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:40:23,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:23,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:23,947 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:40:23,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 13:40:24,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:40:24,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:40:24,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-19 13:40:24,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:24,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:40:24,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:40:24,297 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:40:24,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-11-19 13:40:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:40:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 13:40:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:40:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:40:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-19 13:40:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:24,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:40:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-19 13:40:25,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:25,273 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:40:25,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 74 treesize of output 87 [2021-11-19 13:40:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:40:25,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:30,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:30,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2021-11-19 13:40:30,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2021-11-19 13:40:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:40:30,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833064530] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:40:30,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:40:30,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11, 13] total 34 [2021-11-19 13:40:30,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002791347] [2021-11-19 13:40:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:30,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:40:30,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:40:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:40:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=960, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 13:40:30,457 INFO L87 Difference]: Start difference. First operand 6609 states and 14091 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:32,200 INFO L93 Difference]: Finished difference Result 11137 states and 23765 transitions. [2021-11-19 13:40:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:40:32,201 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 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 45 [2021-11-19 13:40:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:32,249 INFO L225 Difference]: With dead ends: 11137 [2021-11-19 13:40:32,250 INFO L226 Difference]: Without dead ends: 11137 [2021-11-19 13:40:32,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=239, Invalid=1093, Unknown=0, NotChecked=0, Total=1332 [2021-11-19 13:40:32,251 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 70 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 646 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:32,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 37 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 270 Invalid, 0 Unknown, 646 Unchecked, 0.3s Time] [2021-11-19 13:40:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2021-11-19 13:40:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 6748. [2021-11-19 13:40:32,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 6735 states have (on average 2.1334818114328136) internal successors, (14369), 6747 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 14369 transitions. [2021-11-19 13:40:32,501 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 14369 transitions. Word has length 45 [2021-11-19 13:40:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:32,501 INFO L470 AbstractCegarLoop]: Abstraction has 6748 states and 14369 transitions. [2021-11-19 13:40:32,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 14369 transitions. [2021-11-19 13:40:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:40:32,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:32,506 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:32,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:32,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:32,727 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:40:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1268871141, now seen corresponding path program 3 times [2021-11-19 13:40:32,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:40:32,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887555960] [2021-11-19 13:40:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:32,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:40:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:33,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:40:33,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887555960] [2021-11-19 13:40:33,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887555960] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:40:33,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217072603] [2021-11-19 13:40:33,453 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:40:33,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:33,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:33,454 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:40:33,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 13:40:33,727 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:40:33,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:40:33,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-19 13:40:33,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:33,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:40:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:40:34,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 13:40:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:40:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:40:34,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-19 13:40:34,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:40:34,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-19 13:40:34,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:34,793 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:40:34,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 74 treesize of output 87 [2021-11-19 13:40:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:34,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:39,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:40:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:39,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217072603] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:39,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [904179254] [2021-11-19 13:40:39,860 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:40:39,861 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:40:39,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 39 [2021-11-19 13:40:39,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555606689] [2021-11-19 13:40:39,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:40:39,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-19 13:40:39,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:40:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-19 13:40:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 13:40:39,863 INFO L87 Difference]: Start difference. First operand 6748 states and 14369 transitions. Second operand has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:47,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:47,102 INFO L93 Difference]: Finished difference Result 14671 states and 30576 transitions. [2021-11-19 13:40:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-19 13:40:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 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 45 [2021-11-19 13:40:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:47,127 INFO L225 Difference]: With dead ends: 14671 [2021-11-19 13:40:47,128 INFO L226 Difference]: Without dead ends: 14671 [2021-11-19 13:40:47,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 81 SyntacticMatches, 12 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1974 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1307, Invalid=4545, Unknown=0, NotChecked=0, Total=5852 [2021-11-19 13:40:47,131 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 555 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 4011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1503 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:47,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 379 Invalid, 4011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2422 Invalid, 0 Unknown, 1503 Unchecked, 1.7s Time] [2021-11-19 13:40:47,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14671 states. [2021-11-19 13:40:47,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14671 to 11222. [2021-11-19 13:40:47,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11222 states, 11209 states have (on average 2.160496029975912) internal successors, (24217), 11221 states have internal predecessors, (24217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:47,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11222 states to 11222 states and 24217 transitions. [2021-11-19 13:40:47,434 INFO L78 Accepts]: Start accepts. Automaton has 11222 states and 24217 transitions. Word has length 45 [2021-11-19 13:40:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:47,436 INFO L470 AbstractCegarLoop]: Abstraction has 11222 states and 24217 transitions. [2021-11-19 13:40:47,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.641025641025641) internal successors, (103), 40 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:40:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 11222 states and 24217 transitions. [2021-11-19 13:40:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:40:47,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:47,440 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:47,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:47,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:47,655 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:40:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:47,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1268739081, now seen corresponding path program 4 times [2021-11-19 13:40:47,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:40:47,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817042841] [2021-11-19 13:40:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:47,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:40:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:40:48,173 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:40:48,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817042841] [2021-11-19 13:40:48,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817042841] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:40:48,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208772259] [2021-11-19 13:40:48,173 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:40:48,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:48,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:48,174 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:40:48,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 13:40:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:48,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-19 13:40:48,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:48,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:40:48,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:40:48,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 13:40:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:40:48,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:40:48,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-19 13:40:48,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:48,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:40:49,194 INFO L354 Elim1Store]: treesize reduction 642, result has 10.0 percent of original size [2021-11-19 13:40:49,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 112 treesize of output 115 [2021-11-19 13:40:57,381 INFO L354 Elim1Store]: treesize reduction 464, result has 13.3 percent of original size [2021-11-19 13:40:57,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 107 [2021-11-19 13:41:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:01,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:24,349 INFO L354 Elim1Store]: treesize reduction 2681, result has 8.7 percent of original size [2021-11-19 13:41:24,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 21 case distinctions, treesize of input 685 treesize of output 305 [2021-11-19 13:41:24,362 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:41:24,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 305 treesize of output 295 [2021-11-19 13:41:24,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-19 13:41:24,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1544204235] [2021-11-19 13:41:24,382 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:41:24,383 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:41:24,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-11-19 13:41:24,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606265815] [2021-11-19 13:41:24,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-19 13:41:24,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:41:24,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:41:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:41:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=921, Unknown=5, NotChecked=0, Total=1122 [2021-11-19 13:41:24,386 INFO L87 Difference]: Start difference. First operand 11222 states and 24217 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:41:24,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=196, Invalid=921, Unknown=5, NotChecked=0, Total=1122 [2021-11-19 13:41:24,388 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:24,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:41:24,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:24,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:24,615 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@57a049fe at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:41:24,617 INFO L158 Benchmark]: Toolchain (without parser) took 237268.79ms. Allocated memory was 92.3MB in the beginning and 325.1MB in the end (delta: 232.8MB). Free memory was 56.4MB in the beginning and 129.2MB in the end (delta: -72.8MB). Peak memory consumption was 159.8MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,617 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:41:24,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.11ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 50.6MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.52ms. Allocated memory is still 92.3MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,618 INFO L158 Benchmark]: Boogie Preprocessor took 80.27ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,619 INFO L158 Benchmark]: RCFGBuilder took 770.42ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 86.5MB in the end (delta: -40.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,619 INFO L158 Benchmark]: TraceAbstraction took 235411.86ms. Allocated memory was 115.3MB in the beginning and 325.1MB in the end (delta: 209.7MB). Free memory was 85.9MB in the beginning and 129.2MB in the end (delta: -43.3MB). Peak memory consumption was 165.3MB. Max. memory is 16.1GB. [2021-11-19 13:41:24,621 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 92.3MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 897.11ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 50.6MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.52ms. Allocated memory is still 92.3MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.27ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.42ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 86.5MB in the end (delta: -40.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 235411.86ms. Allocated memory was 115.3MB in the beginning and 325.1MB in the end (delta: 209.7MB). Free memory was 85.9MB in the beginning and 129.2MB in the end (delta: -43.3MB). Peak memory consumption was 165.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 125 PlacesBefore, 57 PlacesAfterwards, 127 TransitionsBefore, 56 TransitionsAfterwards, 4864 CoEnabledTransitionPairs, 4 FixpointIterations, 18 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 74 TotalNumberOfCompositions, 13936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4994, positive: 4585, positive conditional: 0, positive unconditional: 4585, negative: 409, negative conditional: 0, negative unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3057, positive: 2944, positive conditional: 0, positive unconditional: 2944, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3057, positive: 2840, positive conditional: 0, positive unconditional: 2840, negative: 217, negative conditional: 0, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 217, positive: 104, positive conditional: 0, positive unconditional: 104, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 608, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 323, negative conditional: 0, negative unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4994, positive: 1641, positive conditional: 0, positive unconditional: 1641, negative: 296, negative conditional: 0, negative unconditional: 296, unknown: 3057, unknown conditional: 0, unknown unconditional: 3057] , Statistics on independence cache: Total cache size (in pairs): 511, Positive cache size: 433, Positive conditional cache size: 0, Positive unconditional cache size: 433, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78 - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@57a049fe de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@57a049fe: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-19 13:41:24,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs --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 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:41:27,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:41:27,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:41:27,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:41:27,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:41:27,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:41:27,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:41:27,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:41:27,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:41:27,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:41:27,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:41:27,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:41:27,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:41:27,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:41:27,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:41:27,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:41:27,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:41:27,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:41:27,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:41:27,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:41:27,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:41:27,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:41:27,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:41:27,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:41:27,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:41:27,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:41:27,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:41:27,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:41:27,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:41:27,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:41:27,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:41:27,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:41:27,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:41:27,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:41:27,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:41:27,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:41:27,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:41:27,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:41:27,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:41:27,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:41:27,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:41:27,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-19 13:41:27,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:41:27,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:41:27,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:41:27,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:41:27,302 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:41:27,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:41:27,303 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:41:27,303 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:41:27,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:41:27,304 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:41:27,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:41:27,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:41:27,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:41:27,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:41:27,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:41:27,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:41:27,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:41:27,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:41:27,309 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 13:41:27,309 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:41:27,309 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:41:27,310 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:41:27,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:41:27,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:41:27,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:41:27,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:41:27,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:41:27,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:41:27,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:41:27,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:41:27,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:41:27,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:41:27,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:41:27,313 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:41:27,314 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:27,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:41:27,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:41:27,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:41:27,315 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2021-11-19 13:41:27,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:41:27,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:41:27,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:41:27,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:41:27,763 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:41:27,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 13:41:27,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/c674346e9/243d2ee250044dcf9ce33f838add54cd/FLAG9709135db [2021-11-19 13:41:28,575 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:41:28,576 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 13:41:28,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/c674346e9/243d2ee250044dcf9ce33f838add54cd/FLAG9709135db [2021-11-19 13:41:28,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/data/c674346e9/243d2ee250044dcf9ce33f838add54cd [2021-11-19 13:41:28,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:41:28,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:41:28,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:41:28,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:41:28,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:41:28,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:28" (1/1) ... [2021-11-19 13:41:28,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486bb331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:28, skipping insertion in model container [2021-11-19 13:41:28,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:28" (1/1) ... [2021-11-19 13:41:28,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:41:28,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:41:29,449 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:41:29,487 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:41:29,573 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:41:29,659 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:41:29,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29 WrapperNode [2021-11-19 13:41:29,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:41:29,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:41:29,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:41:29,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:41:29,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,762 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2021-11-19 13:41:29,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:41:29,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:41:29,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:41:29,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:41:29,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:41:29,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:41:29,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:41:29,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:41:29,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (1/1) ... [2021-11-19 13:41:29,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:41:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:29,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:41:29,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:41:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:41:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:41:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:41:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:41:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 13:41:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 13:41:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 13:41:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:41:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:41:29,953 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 13:41:30,180 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:41:30,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:41:30,667 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:41:30,676 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:41:30,677 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 13:41:30,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:30 BoogieIcfgContainer [2021-11-19 13:41:30,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:41:30,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:41:30,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:41:30,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:41:30,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:41:28" (1/3) ... [2021-11-19 13:41:30,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5993b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:30, skipping insertion in model container [2021-11-19 13:41:30,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:29" (2/3) ... [2021-11-19 13:41:30,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5993b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:30, skipping insertion in model container [2021-11-19 13:41:30,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:30" (3/3) ... [2021-11-19 13:41:30,687 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2021-11-19 13:41:30,693 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 13:41:30,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:41:30,693 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-19 13:41:30,694 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:41:30,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,728 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,770 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,775 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,776 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:41:30,790 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 13:41:30,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:41:30,868 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:41:30,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-19 13:41:30,889 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:41:30,907 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 128 transitions, 261 flow [2021-11-19 13:41:30,910 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 128 transitions, 261 flow [2021-11-19 13:41:30,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 128 transitions, 261 flow [2021-11-19 13:41:30,992 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2021-11-19 13:41:30,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 13:41:30,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 6/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-11-19 13:41:31,007 INFO L116 LiptonReduction]: Number of co-enabled transitions 4864 [2021-11-19 13:41:36,113 INFO L131 LiptonReduction]: Checked pairs total: 14322 [2021-11-19 13:41:36,113 INFO L133 LiptonReduction]: Total number of compositions: 75 [2021-11-19 13:41:36,121 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 56 transitions, 117 flow [2021-11-19 13:41:36,161 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:41:36,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:36,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:36,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash 366821527, now seen corresponding path program 1 times [2021-11-19 13:41:36,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:36,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828536886] [2021-11-19 13:41:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:36,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:36,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:36,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:36,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:41:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:36,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:36,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:36,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:36,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:36,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828536886] [2021-11-19 13:41:36,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828536886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:36,437 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:36,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 13:41:36,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225891639] [2021-11-19 13:41:36,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:36,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:36,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:36,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:36,479 INFO L87 Difference]: Start difference. First operand has 595 states, 581 states have (on average 2.044750430292599) internal successors, (1188), 594 states have internal predecessors, (1188), 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 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:36,668 INFO L93 Difference]: Finished difference Result 597 states and 1190 transitions. [2021-11-19 13:41:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:36,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:41:36,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:36,689 INFO L225 Difference]: With dead ends: 597 [2021-11-19 13:41:36,689 INFO L226 Difference]: Without dead ends: 597 [2021-11-19 13:41:36,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:36,694 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:36,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-19 13:41:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-19 13:41:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 583 states have (on average 2.041166380789022) internal successors, (1190), 596 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1190 transitions. [2021-11-19 13:41:36,770 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1190 transitions. Word has length 11 [2021-11-19 13:41:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:36,771 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 1190 transitions. [2021-11-19 13:41:36,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1190 transitions. [2021-11-19 13:41:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:41:36,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:36,773 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:36,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:36,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:36,987 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:36,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2092952279, now seen corresponding path program 1 times [2021-11-19 13:41:36,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:36,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910202470] [2021-11-19 13:41:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:36,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:36,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:37,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:41:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:37,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:37,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:37,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:37,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910202470] [2021-11-19 13:41:37,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910202470] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:37,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [658128208] [2021-11-19 13:41:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:37,246 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:37,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:37,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:37,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-19 13:41:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:37,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:37,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [658128208] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:37,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137586894] [2021-11-19 13:41:37,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:37,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:37,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:37,580 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:37,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 13:41:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:37,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:37,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:37,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137586894] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:37,722 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:41:37,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2021-11-19 13:41:37,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551771448] [2021-11-19 13:41:37,724 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:41:37,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:37,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:37,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:37,726 INFO L87 Difference]: Start difference. First operand 597 states and 1190 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:37,953 INFO L93 Difference]: Finished difference Result 601 states and 1194 transitions. [2021-11-19 13:41:37,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:41:37,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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 13 [2021-11-19 13:41:37,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:37,966 INFO L225 Difference]: With dead ends: 601 [2021-11-19 13:41:37,967 INFO L226 Difference]: Without dead ends: 601 [2021-11-19 13:41:37,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:41:37,969 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:37,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:41:37,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-11-19 13:41:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2021-11-19 13:41:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 587 states have (on average 2.0340715502555367) internal successors, (1194), 600 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1194 transitions. [2021-11-19 13:41:38,048 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1194 transitions. Word has length 13 [2021-11-19 13:41:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:38,048 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 1194 transitions. [2021-11-19 13:41:38,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:38,049 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1194 transitions. [2021-11-19 13:41:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 13:41:38,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:38,051 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:38,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:38,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-11-19 13:41:38,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:38,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:38,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:38,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 983863127, now seen corresponding path program 2 times [2021-11-19 13:41:38,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:38,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853047727] [2021-11-19 13:41:38,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:38,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:38,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:38,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:38,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:41:38,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:41:38,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:38,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:41:38,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:38,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:41:38,844 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:41:38,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-19 13:41:38,979 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:41:38,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 46 [2021-11-19 13:41:39,148 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:41:39,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 64 [2021-11-19 13:41:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:41:39,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:41:39,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:39,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853047727] [2021-11-19 13:41:39,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853047727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:39,481 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:39,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:39,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873022938] [2021-11-19 13:41:39,481 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:39,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:41:39,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:41:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:39,483 INFO L87 Difference]: Start difference. First operand 601 states and 1194 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:40,511 INFO L93 Difference]: Finished difference Result 848 states and 1688 transitions. [2021-11-19 13:41:40,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:41:40,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-19 13:41:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:40,519 INFO L225 Difference]: With dead ends: 848 [2021-11-19 13:41:40,520 INFO L226 Difference]: Without dead ends: 848 [2021-11-19 13:41:40,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:40,521 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 198 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:40,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 54 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 386 Invalid, 0 Unknown, 198 Unchecked, 0.9s Time] [2021-11-19 13:41:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2021-11-19 13:41:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 728. [2021-11-19 13:41:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 714 states have (on average 2.0280112044817926) internal successors, (1448), 727 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1448 transitions. [2021-11-19 13:41:40,555 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1448 transitions. Word has length 17 [2021-11-19 13:41:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:40,555 INFO L470 AbstractCegarLoop]: Abstraction has 728 states and 1448 transitions. [2021-11-19 13:41:40,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1448 transitions. [2021-11-19 13:41:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 13:41:40,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:40,558 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:40,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:40,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:40,776 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2104478273, now seen corresponding path program 1 times [2021-11-19 13:41:40,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:40,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435120860] [2021-11-19 13:41:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:40,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:40,780 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:40,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:41:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:40,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:41:40,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:40,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:41,121 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:41,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435120860] [2021-11-19 13:41:41,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435120860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:41,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [580644635] [2021-11-19 13:41:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:41,123 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:41,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:41,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:41,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 13:41:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:41,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:41:41,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:41,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:41,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [580644635] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:41,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531955185] [2021-11-19 13:41:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:41,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:41,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:41,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:41,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 13:41:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:41,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:41,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:41:41,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:41:41,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531955185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:41,546 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:41:41,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8, 8, 8] total 18 [2021-11-19 13:41:41,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295120325] [2021-11-19 13:41:41,547 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:41,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:41,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:41,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:41:41,548 INFO L87 Difference]: Start difference. First operand 728 states and 1448 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:41,712 INFO L93 Difference]: Finished difference Result 1080 states and 2152 transitions. [2021-11-19 13:41:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:41,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 17 [2021-11-19 13:41:41,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:41,723 INFO L225 Difference]: With dead ends: 1080 [2021-11-19 13:41:41,723 INFO L226 Difference]: Without dead ends: 1080 [2021-11-19 13:41:41,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:41:41,725 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:41,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 87 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-11-19 13:41:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1037. [2021-11-19 13:41:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1023 states have (on average 2.06158357771261) internal successors, (2109), 1036 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 2109 transitions. [2021-11-19 13:41:41,774 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 2109 transitions. Word has length 17 [2021-11-19 13:41:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:41,774 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 2109 transitions. [2021-11-19 13:41:41,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 2109 transitions. [2021-11-19 13:41:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 13:41:41,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:41,777 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:41,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:42,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 13:41:42,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:42,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:42,400 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:42,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:42,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1262838679, now seen corresponding path program 1 times [2021-11-19 13:41:42,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:42,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616378855] [2021-11-19 13:41:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:42,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:42,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:42,402 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:42,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:41:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:42,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:41:42,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:42,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:42,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:42,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616378855] [2021-11-19 13:41:42,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616378855] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:42,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1516779553] [2021-11-19 13:41:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:42,752 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:42,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:42,753 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:42,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 13:41:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:42,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:41:42,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:42,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:42,984 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:42,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1516779553] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:42,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049412704] [2021-11-19 13:41:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:42,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:42,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:42,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:42,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 13:41:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:43,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:41:43,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:43,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:43,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049412704] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:43,154 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:41:43,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 15 [2021-11-19 13:41:43,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569621418] [2021-11-19 13:41:43,155 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:41:43,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:41:43,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:41:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:41:43,156 INFO L87 Difference]: Start difference. First operand 1037 states and 2109 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:43,578 INFO L93 Difference]: Finished difference Result 1041 states and 2113 transitions. [2021-11-19 13:41:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:41:43,580 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 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 17 [2021-11-19 13:41:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:43,589 INFO L225 Difference]: With dead ends: 1041 [2021-11-19 13:41:43,589 INFO L226 Difference]: Without dead ends: 1041 [2021-11-19 13:41:43,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:41:43,591 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:43,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:41:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-11-19 13:41:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2021-11-19 13:41:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1027 states have (on average 2.0574488802336903) internal successors, (2113), 1040 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 2113 transitions. [2021-11-19 13:41:43,630 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 2113 transitions. Word has length 17 [2021-11-19 13:41:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:43,631 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 2113 transitions. [2021-11-19 13:41:43,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 2113 transitions. [2021-11-19 13:41:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 13:41:43,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:43,633 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:43,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:43,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:44,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:44,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:44,235 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:44,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2059155433, now seen corresponding path program 2 times [2021-11-19 13:41:44,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:44,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452925833] [2021-11-19 13:41:44,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:44,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:44,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:44,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:44,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:41:44,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:41:44,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:44,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:41:44,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:44,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:41:44,356 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:41:44,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-19 13:41:44,444 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:41:44,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 54 [2021-11-19 13:41:44,589 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:41:44,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 75 [2021-11-19 13:41:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:44,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:44,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:44,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452925833] [2021-11-19 13:41:44,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452925833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:44,889 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:44,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:44,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120788302] [2021-11-19 13:41:44,890 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:44,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:41:44,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:44,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:41:44,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:44,891 INFO L87 Difference]: Start difference. First operand 1041 states and 2113 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:45,386 INFO L93 Difference]: Finished difference Result 1436 states and 2911 transitions. [2021-11-19 13:41:45,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:41:45,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-19 13:41:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:45,397 INFO L225 Difference]: With dead ends: 1436 [2021-11-19 13:41:45,398 INFO L226 Difference]: Without dead ends: 1436 [2021-11-19 13:41:45,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:45,399 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 29 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:45,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 38 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 163 Invalid, 0 Unknown, 62 Unchecked, 0.4s Time] [2021-11-19 13:41:45,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2021-11-19 13:41:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1185. [2021-11-19 13:41:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1171 states have (on average 2.049530315969257) internal successors, (2400), 1184 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 2400 transitions. [2021-11-19 13:41:45,454 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 2400 transitions. Word has length 21 [2021-11-19 13:41:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:45,455 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 2400 transitions. [2021-11-19 13:41:45,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 2400 transitions. [2021-11-19 13:41:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 13:41:45,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:45,457 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:45,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:45,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:45,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:45,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:45,674 INFO L85 PathProgramCache]: Analyzing trace with hash 595426781, now seen corresponding path program 1 times [2021-11-19 13:41:45,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:45,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423116539] [2021-11-19 13:41:45,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:45,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:45,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:45,675 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:45,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:41:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:45,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:41:45,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:45,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:41:45,817 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:41:45,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-19 13:41:45,906 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:41:45,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 47 [2021-11-19 13:41:46,008 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:41:46,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 67 [2021-11-19 13:41:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:46,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:46,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:46,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423116539] [2021-11-19 13:41:46,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423116539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:46,214 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:46,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 13:41:46,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36036233] [2021-11-19 13:41:46,214 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:46,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:41:46,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:46,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:41:46,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:46,216 INFO L87 Difference]: Start difference. First operand 1185 states and 2400 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:47,173 INFO L93 Difference]: Finished difference Result 1344 states and 2712 transitions. [2021-11-19 13:41:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:41:47,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-19 13:41:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:47,182 INFO L225 Difference]: With dead ends: 1344 [2021-11-19 13:41:47,182 INFO L226 Difference]: Without dead ends: 1344 [2021-11-19 13:41:47,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:47,184 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 41 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:47,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 41 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:41:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2021-11-19 13:41:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1191. [2021-11-19 13:41:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1177 states have (on average 2.0492778249787595) internal successors, (2412), 1190 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 2412 transitions. [2021-11-19 13:41:47,236 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 2412 transitions. Word has length 22 [2021-11-19 13:41:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:47,236 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 2412 transitions. [2021-11-19 13:41:47,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 2412 transitions. [2021-11-19 13:41:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:47,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:47,238 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:47,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:47,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:47,455 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1807846689, now seen corresponding path program 1 times [2021-11-19 13:41:47,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:47,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747550446] [2021-11-19 13:41:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:47,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:47,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:47,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:47,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:41:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:47,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:41:47,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:47,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:47,659 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:47,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:47,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-19 13:41:47,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-19 13:41:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:47,796 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:47,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747550446] [2021-11-19 13:41:47,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747550446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:47,796 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:47,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:41:47,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939948081] [2021-11-19 13:41:47,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:47,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:41:47,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:47,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:41:47,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:47,798 INFO L87 Difference]: Start difference. First operand 1191 states and 2412 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:48,691 INFO L93 Difference]: Finished difference Result 3357 states and 6778 transitions. [2021-11-19 13:41:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:41:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:48,717 INFO L225 Difference]: With dead ends: 3357 [2021-11-19 13:41:48,717 INFO L226 Difference]: Without dead ends: 3357 [2021-11-19 13:41:48,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:41:48,718 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 227 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:48,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 243 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:41:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2021-11-19 13:41:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 1264. [2021-11-19 13:41:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1249 states have (on average 2.0384307445956766) internal successors, (2546), 1263 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2546 transitions. [2021-11-19 13:41:48,788 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2546 transitions. Word has length 25 [2021-11-19 13:41:48,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:48,788 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 2546 transitions. [2021-11-19 13:41:48,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2546 transitions. [2021-11-19 13:41:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:48,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:48,789 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:48,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:49,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:49,004 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash 44610723, now seen corresponding path program 2 times [2021-11-19 13:41:49,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:49,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484992324] [2021-11-19 13:41:49,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:49,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:49,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:49,006 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:49,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:41:49,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:41:49,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:49,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:41:49,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:49,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:49,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:49,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-19 13:41:49,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2021-11-19 13:41:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:49,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:49,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484992324] [2021-11-19 13:41:49,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484992324] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:49,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:49,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:49,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704797991] [2021-11-19 13:41:49,359 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:49,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:49,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:49,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:49,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:49,360 INFO L87 Difference]: Start difference. First operand 1264 states and 2546 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:51,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:52,108 INFO L93 Difference]: Finished difference Result 3071 states and 6197 transitions. [2021-11-19 13:41:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:41:52,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:52,130 INFO L225 Difference]: With dead ends: 3071 [2021-11-19 13:41:52,130 INFO L226 Difference]: Without dead ends: 3071 [2021-11-19 13:41:52,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:41:52,131 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 214 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:52,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 313 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 219 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 13:41:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-11-19 13:41:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 1265. [2021-11-19 13:41:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1250 states have (on average 2.0384) internal successors, (2548), 1264 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2548 transitions. [2021-11-19 13:41:52,195 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2548 transitions. Word has length 25 [2021-11-19 13:41:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:52,195 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 2548 transitions. [2021-11-19 13:41:52,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2548 transitions. [2021-11-19 13:41:52,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:52,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:52,197 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:52,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:52,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:52,413 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:52,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 582466301, now seen corresponding path program 3 times [2021-11-19 13:41:52,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:52,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987216089] [2021-11-19 13:41:52,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:41:52,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:52,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:52,414 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:52,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:41:52,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:41:52,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:52,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:41:52,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:52,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:52,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:52,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2021-11-19 13:41:52,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2021-11-19 13:41:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:52,772 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:52,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987216089] [2021-11-19 13:41:52,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987216089] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:52,772 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:52,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:52,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751550713] [2021-11-19 13:41:52,772 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:52,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:52,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:52,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:52,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:52,774 INFO L87 Difference]: Start difference. First operand 1265 states and 2548 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:53,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:53,470 INFO L93 Difference]: Finished difference Result 3373 states and 6769 transitions. [2021-11-19 13:41:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:41:53,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:53,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:53,493 INFO L225 Difference]: With dead ends: 3373 [2021-11-19 13:41:53,493 INFO L226 Difference]: Without dead ends: 3373 [2021-11-19 13:41:53,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:53,494 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 222 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:53,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 311 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:41:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2021-11-19 13:41:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 1279. [2021-11-19 13:41:53,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1263 states have (on average 2.0285035629453683) internal successors, (2562), 1278 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2562 transitions. [2021-11-19 13:41:53,550 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2562 transitions. Word has length 25 [2021-11-19 13:41:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:53,551 INFO L470 AbstractCegarLoop]: Abstraction has 1279 states and 2562 transitions. [2021-11-19 13:41:53,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2562 transitions. [2021-11-19 13:41:53,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:53,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:53,554 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:53,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:53,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:53,768 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:53,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1816207283, now seen corresponding path program 4 times [2021-11-19 13:41:53,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:53,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628288740] [2021-11-19 13:41:53,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:41:53,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:53,770 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:53,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 13:41:53,860 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:41:53,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:53,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:41:53,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:53,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:53,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:54,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2021-11-19 13:41:54,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2021-11-19 13:41:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:54,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:54,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628288740] [2021-11-19 13:41:54,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628288740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:54,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:54,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:54,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421106383] [2021-11-19 13:41:54,136 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:54,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:54,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:54,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:54,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:54,137 INFO L87 Difference]: Start difference. First operand 1279 states and 2562 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:56,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:56,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:56,683 INFO L93 Difference]: Finished difference Result 2232 states and 4411 transitions. [2021-11-19 13:41:56,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:41:56,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:56,701 INFO L225 Difference]: With dead ends: 2232 [2021-11-19 13:41:56,701 INFO L226 Difference]: Without dead ends: 2232 [2021-11-19 13:41:56,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:41:56,702 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 137 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:56,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 355 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:41:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2021-11-19 13:41:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1279. [2021-11-19 13:41:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1263 states have (on average 2.0285035629453683) internal successors, (2562), 1278 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2562 transitions. [2021-11-19 13:41:56,749 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2562 transitions. Word has length 25 [2021-11-19 13:41:56,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:56,749 INFO L470 AbstractCegarLoop]: Abstraction has 1279 states and 2562 transitions. [2021-11-19 13:41:56,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2562 transitions. [2021-11-19 13:41:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:56,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:56,750 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:56,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:56,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:56,967 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:56,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1940904435, now seen corresponding path program 5 times [2021-11-19 13:41:56,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:56,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271335779] [2021-11-19 13:41:56,969 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-19 13:41:56,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:56,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:56,970 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:56,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:41:57,080 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-19 13:41:57,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:57,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:41:57,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:57,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:57,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:57,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-19 13:41:57,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2021-11-19 13:41:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:57,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:57,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271335779] [2021-11-19 13:41:57,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271335779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:57,342 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:57,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:41:57,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92132270] [2021-11-19 13:41:57,343 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:57,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:57,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:57,344 INFO L87 Difference]: Start difference. First operand 1279 states and 2562 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:58,083 INFO L93 Difference]: Finished difference Result 2220 states and 4373 transitions. [2021-11-19 13:41:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:41:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:58,099 INFO L225 Difference]: With dead ends: 2220 [2021-11-19 13:41:58,099 INFO L226 Difference]: Without dead ends: 2220 [2021-11-19 13:41:58,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:41:58,100 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 255 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:58,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 232 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:41:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2021-11-19 13:41:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1278. [2021-11-19 13:41:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1262 states have (on average 2.028526148969889) internal successors, (2560), 1277 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 2560 transitions. [2021-11-19 13:41:58,153 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 2560 transitions. Word has length 25 [2021-11-19 13:41:58,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:58,153 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 2560 transitions. [2021-11-19 13:41:58,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 2560 transitions. [2021-11-19 13:41:58,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:41:58,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:58,154 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:58,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:58,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:58,371 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash -765413791, now seen corresponding path program 6 times [2021-11-19 13:41:58,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:58,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623499648] [2021-11-19 13:41:58,372 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-19 13:41:58,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:58,374 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:58,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:41:58,453 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-19 13:41:58,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:58,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:41:58,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:58,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:41:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:58,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:58,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-19 13:41:58,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-19 13:41:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:41:58,639 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:58,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623499648] [2021-11-19 13:41:58,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623499648] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:58,639 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:58,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:41:58,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735574642] [2021-11-19 13:41:58,640 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:58,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:41:58,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:58,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:41:58,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:58,641 INFO L87 Difference]: Start difference. First operand 1278 states and 2560 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:59,390 INFO L93 Difference]: Finished difference Result 2219 states and 4385 transitions. [2021-11-19 13:41:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:41:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 25 [2021-11-19 13:41:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:59,402 INFO L225 Difference]: With dead ends: 2219 [2021-11-19 13:41:59,402 INFO L226 Difference]: Without dead ends: 2219 [2021-11-19 13:41:59,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:41:59,404 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 195 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:59,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 254 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:41:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2021-11-19 13:41:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 1266. [2021-11-19 13:41:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1250 states have (on average 2.0272) internal successors, (2534), 1265 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 2534 transitions. [2021-11-19 13:41:59,442 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 2534 transitions. Word has length 25 [2021-11-19 13:41:59,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:59,443 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 2534 transitions. [2021-11-19 13:41:59,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 2534 transitions. [2021-11-19 13:41:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:41:59,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:59,444 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:59,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:59,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:59,657 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:41:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1702747290, now seen corresponding path program 1 times [2021-11-19 13:41:59,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:59,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076508624] [2021-11-19 13:41:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:59,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:59,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:59,660 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:59,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 13:41:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:59,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:41:59,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:59,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:41:59,836 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:41:59,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-19 13:41:59,914 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:41:59,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 56 [2021-11-19 13:42:00,045 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:42:00,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 82 [2021-11-19 13:42:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:00,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:00,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:00,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076508624] [2021-11-19 13:42:00,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076508624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:00,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:00,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:42:00,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652907907] [2021-11-19 13:42:00,363 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:00,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:42:00,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:00,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:42:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:42:00,365 INFO L87 Difference]: Start difference. First operand 1266 states and 2534 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:01,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:01,489 INFO L93 Difference]: Finished difference Result 1434 states and 2879 transitions. [2021-11-19 13:42:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:42:01,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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 27 [2021-11-19 13:42:01,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:01,496 INFO L225 Difference]: With dead ends: 1434 [2021-11-19 13:42:01,496 INFO L226 Difference]: Without dead ends: 1404 [2021-11-19 13:42:01,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:42:01,497 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 68 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:01,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 55 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 571 Invalid, 0 Unknown, 17 Unchecked, 1.1s Time] [2021-11-19 13:42:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2021-11-19 13:42:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2021-11-19 13:42:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1389 states have (on average 2.025917926565875) internal successors, (2814), 1403 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2814 transitions. [2021-11-19 13:42:01,532 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2814 transitions. Word has length 27 [2021-11-19 13:42:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:01,533 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2814 transitions. [2021-11-19 13:42:01,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2814 transitions. [2021-11-19 13:42:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:42:01,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:01,534 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:01,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:01,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:01,751 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2005810035, now seen corresponding path program 1 times [2021-11-19 13:42:01,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:01,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54898943] [2021-11-19 13:42:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:01,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:01,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:01,753 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:01,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 13:42:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:01,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:42:01,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:01,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:01,887 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:42:01,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-19 13:42:01,928 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:42:01,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-11-19 13:42:02,003 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:42:02,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 81 [2021-11-19 13:42:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:02,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:02,243 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:02,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54898943] [2021-11-19 13:42:02,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54898943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:02,243 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:02,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 13:42:02,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617283152] [2021-11-19 13:42:02,244 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:02,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:42:02,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:02,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:42:02,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:42:02,245 INFO L87 Difference]: Start difference. First operand 1404 states and 2814 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:03,281 INFO L93 Difference]: Finished difference Result 1578 states and 3163 transitions. [2021-11-19 13:42:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:42:03,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 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 27 [2021-11-19 13:42:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:03,288 INFO L225 Difference]: With dead ends: 1578 [2021-11-19 13:42:03,288 INFO L226 Difference]: Without dead ends: 1578 [2021-11-19 13:42:03,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:42:03,289 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 41 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:03,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 42 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:42:03,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-19 13:42:03,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1532. [2021-11-19 13:42:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1518 states have (on average 2.023056653491436) internal successors, (3071), 1531 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 3071 transitions. [2021-11-19 13:42:03,339 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 3071 transitions. Word has length 27 [2021-11-19 13:42:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:03,339 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 3071 transitions. [2021-11-19 13:42:03,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 3071 transitions. [2021-11-19 13:42:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:03,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:03,341 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:03,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:03,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:03,555 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1563800095, now seen corresponding path program 1 times [2021-11-19 13:42:03,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:03,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687916532] [2021-11-19 13:42:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:03,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:03,557 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:03,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 13:42:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:03,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:42:03,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:04,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:04,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:42:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,294 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:04,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 13:42:04,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:04,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 45 [2021-11-19 13:42:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:04,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:04,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2021-11-19 13:42:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:04,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:04,916 INFO L354 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2021-11-19 13:42:04,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 1 [2021-11-19 13:42:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:04,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:04,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687916532] [2021-11-19 13:42:04,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687916532] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:04,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:04,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 17 [2021-11-19 13:42:04,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009446991] [2021-11-19 13:42:04,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:04,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:42:04,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:04,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:42:04,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:42:04,973 INFO L87 Difference]: Start difference. First operand 1532 states and 3071 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:06,365 INFO L93 Difference]: Finished difference Result 1834 states and 3677 transitions. [2021-11-19 13:42:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:42:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:06,378 INFO L225 Difference]: With dead ends: 1834 [2021-11-19 13:42:06,378 INFO L226 Difference]: Without dead ends: 1834 [2021-11-19 13:42:06,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:42:06,379 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:06,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 35 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 13:42:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-11-19 13:42:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1564. [2021-11-19 13:42:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1550 states have (on average 2.02258064516129) internal successors, (3135), 1563 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 3135 transitions. [2021-11-19 13:42:06,426 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 3135 transitions. Word has length 39 [2021-11-19 13:42:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:06,428 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 3135 transitions. [2021-11-19 13:42:06,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 3135 transitions. [2021-11-19 13:42:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:06,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:06,429 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:06,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:06,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:06,644 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:06,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 742092669, now seen corresponding path program 2 times [2021-11-19 13:42:06,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:06,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043218836] [2021-11-19 13:42:06,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:42:06,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:06,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:06,648 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:06,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 13:42:06,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:42:06,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:06,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:42:06,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:06,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:42:06,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:07,037 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:42:07,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 16 [2021-11-19 13:42:07,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:07,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-19 13:42:07,380 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:42:07,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 47 [2021-11-19 13:42:08,131 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:42:08,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 73 [2021-11-19 13:42:08,445 INFO L354 Elim1Store]: treesize reduction 152, result has 23.6 percent of original size [2021-11-19 13:42:08,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 100 [2021-11-19 13:42:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:42:08,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:09,499 INFO L354 Elim1Store]: treesize reduction 135, result has 0.7 percent of original size [2021-11-19 13:42:09,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 1 [2021-11-19 13:42:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:09,546 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:09,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043218836] [2021-11-19 13:42:09,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043218836] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:09,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:09,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2021-11-19 13:42:09,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982486870] [2021-11-19 13:42:09,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:09,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:42:09,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:42:09,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:42:09,548 INFO L87 Difference]: Start difference. First operand 1564 states and 3135 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:11,636 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~i~2#1| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (select |c_#pthreadsMutex| |c_~#cache~0.base|) (bvadd (bvmul |ULTIMATE.start_main_~i~2#1| (_ bv28 32)) (_ bv4 32) |c_~#cache~0.offset|)))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store (select (let ((.cse0 (store |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv1 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1))))) (store .cse0 |c_~#cache~0.base| (store (select .cse0 |c_~#cache~0.base|) (bvadd (bvmul (_ bv28 32) |ULTIMATE.start_main_~i~2#1|) |c_~#cache~0.offset|) (_ bv0 1)))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv2 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (store (store (select (let ((.cse1 (store |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv1 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1))))) (store .cse1 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base| (store (select .cse1 |c_ULTIMATE.start_cache_entry_addref_~entry#1.base|) |c_ULTIMATE.start_cache_entry_addref_~entry#1.offset| (_ bv0 1)))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv2 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|)))))) is different from false [2021-11-19 13:42:12,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:12,537 INFO L93 Difference]: Finished difference Result 2034 states and 4077 transitions. [2021-11-19 13:42:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:42:12,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:12,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:12,544 INFO L225 Difference]: With dead ends: 2034 [2021-11-19 13:42:12,544 INFO L226 Difference]: Without dead ends: 2034 [2021-11-19 13:42:12,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=74, Invalid=169, Unknown=1, NotChecked=28, Total=272 [2021-11-19 13:42:12,546 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 74 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:12,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 38 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 288 Invalid, 0 Unknown, 131 Unchecked, 0.9s Time] [2021-11-19 13:42:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2021-11-19 13:42:12,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1567. [2021-11-19 13:42:12,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1553 states have (on average 2.0231809401159047) internal successors, (3142), 1566 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 3142 transitions. [2021-11-19 13:42:12,587 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 3142 transitions. Word has length 39 [2021-11-19 13:42:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:12,587 INFO L470 AbstractCegarLoop]: Abstraction has 1567 states and 3142 transitions. [2021-11-19 13:42:12,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 3142 transitions. [2021-11-19 13:42:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:12,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:12,589 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:12,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:12,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:12,805 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1823827293, now seen corresponding path program 3 times [2021-11-19 13:42:12,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:12,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424011568] [2021-11-19 13:42:12,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:42:12,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:12,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:12,807 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:12,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 13:42:12,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:42:12,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:12,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:42:12,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:12,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:42:13,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:13,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:13,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-19 13:42:13,326 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:42:13,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2021-11-19 13:42:13,469 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-19 13:42:13,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2021-11-19 13:42:13,739 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-19 13:42:13,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 77 [2021-11-19 13:42:13,980 INFO L354 Elim1Store]: treesize reduction 152, result has 23.6 percent of original size [2021-11-19 13:42:13,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 107 [2021-11-19 13:42:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:42:14,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:23,762 INFO L354 Elim1Store]: treesize reduction 135, result has 0.7 percent of original size [2021-11-19 13:42:23,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 1 [2021-11-19 13:42:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:23,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:23,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424011568] [2021-11-19 13:42:23,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424011568] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:23,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:23,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2021-11-19 13:42:23,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620132886] [2021-11-19 13:42:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:23,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:42:23,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:23,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:42:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=162, Unknown=3, NotChecked=0, Total=240 [2021-11-19 13:42:23,825 INFO L87 Difference]: Start difference. First operand 1567 states and 3142 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:24,171 INFO L93 Difference]: Finished difference Result 1782 states and 3571 transitions. [2021-11-19 13:42:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:42:24,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:24,178 INFO L225 Difference]: With dead ends: 1782 [2021-11-19 13:42:24,178 INFO L226 Difference]: Without dead ends: 1782 [2021-11-19 13:42:24,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=75, Invalid=162, Unknown=3, NotChecked=0, Total=240 [2021-11-19 13:42:24,179 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:24,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 48 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 90 Unchecked, 0.3s Time] [2021-11-19 13:42:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2021-11-19 13:42:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1580. [2021-11-19 13:42:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1566 states have (on average 2.023627075351213) internal successors, (3169), 1579 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 3169 transitions. [2021-11-19 13:42:24,222 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 3169 transitions. Word has length 39 [2021-11-19 13:42:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:24,222 INFO L470 AbstractCegarLoop]: Abstraction has 1580 states and 3169 transitions. [2021-11-19 13:42:24,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 3169 transitions. [2021-11-19 13:42:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:24,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:24,224 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:24,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:24,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:24,439 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:24,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1112095779, now seen corresponding path program 4 times [2021-11-19 13:42:24,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:24,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792003069] [2021-11-19 13:42:24,440 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:42:24,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:24,441 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:24,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 13:42:24,590 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:42:24,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:24,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:42:24,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:24,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:24,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:24,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-19 13:42:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,030 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:25,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-11-19 13:42:25,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:25,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2021-11-19 13:42:25,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:25,175 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:25,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2021-11-19 13:42:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:25,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:25,717 INFO L354 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2021-11-19 13:42:25,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 1 [2021-11-19 13:42:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:25,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:25,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792003069] [2021-11-19 13:42:25,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792003069] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:25,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:25,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 19 [2021-11-19 13:42:25,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636835457] [2021-11-19 13:42:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:25,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:42:25,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:25,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:42:25,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:42:25,762 INFO L87 Difference]: Start difference. First operand 1580 states and 3169 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:32,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:32,924 INFO L93 Difference]: Finished difference Result 1988 states and 3989 transitions. [2021-11-19 13:42:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:42:32,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:32,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:32,931 INFO L225 Difference]: With dead ends: 1988 [2021-11-19 13:42:32,931 INFO L226 Difference]: Without dead ends: 1988 [2021-11-19 13:42:32,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:42:32,932 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:32,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 42 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-19 13:42:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2021-11-19 13:42:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1572. [2021-11-19 13:42:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1558 states have (on average 2.0237483953786906) internal successors, (3153), 1571 states have internal predecessors, (3153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 3153 transitions. [2021-11-19 13:42:32,971 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 3153 transitions. Word has length 39 [2021-11-19 13:42:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:32,971 INFO L470 AbstractCegarLoop]: Abstraction has 1572 states and 3153 transitions. [2021-11-19 13:42:32,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 3153 transitions. [2021-11-19 13:42:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:32,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:32,973 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:33,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:33,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:33,186 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1453824183, now seen corresponding path program 5 times [2021-11-19 13:42:33,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:33,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063595410] [2021-11-19 13:42:33,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-19 13:42:33,188 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:33,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:33,189 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:33,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 13:42:33,321 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-19 13:42:33,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:33,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:42:33,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:33,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:42:33,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:33,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:33,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:42:33,671 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:42:33,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 14 [2021-11-19 13:42:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:33,847 INFO L354 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2021-11-19 13:42:33,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2021-11-19 13:42:33,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:33,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:33,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:33,995 INFO L354 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2021-11-19 13:42:33,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 70 [2021-11-19 13:42:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:34,171 INFO L354 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2021-11-19 13:42:34,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 93 [2021-11-19 13:42:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:42:34,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:36,807 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~2#1| (_ BitVec 32))) (or (let ((.cse0 (store (store (select (store |c_#race| |c_~#cache~0.base| (store (select |c_#race| |c_~#cache~0.base|) (bvadd (bvmul (_ bv28 32) |ULTIMATE.start_main_~i~2#1|) |c_~#cache~0.offset|) (_ bv0 1))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv2 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 (bvadd (_ bv1 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))))))) (not (= (_ bv0 1) (bvneg (bvneg (select (select |c_#pthreadsMutex| |c_~#cache~0.base|) (bvadd (bvmul |ULTIMATE.start_main_~i~2#1| (_ bv28 32)) (_ bv4 32) |c_~#cache~0.offset|)))))))) is different from false [2021-11-19 13:42:39,908 INFO L354 Elim1Store]: treesize reduction 135, result has 0.7 percent of original size [2021-11-19 13:42:39,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 1 [2021-11-19 13:42:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:39,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:39,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063595410] [2021-11-19 13:42:39,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063595410] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:39,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:39,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-11-19 13:42:39,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738190321] [2021-11-19 13:42:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:39,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:42:39,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:42:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=234, Unknown=1, NotChecked=32, Total=342 [2021-11-19 13:42:39,962 INFO L87 Difference]: Start difference. First operand 1572 states and 3153 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:40,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:40,705 INFO L93 Difference]: Finished difference Result 1777 states and 3562 transitions. [2021-11-19 13:42:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:42:40,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:40,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:40,711 INFO L225 Difference]: With dead ends: 1777 [2021-11-19 13:42:40,712 INFO L226 Difference]: Without dead ends: 1777 [2021-11-19 13:42:40,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=75, Invalid=234, Unknown=1, NotChecked=32, Total=342 [2021-11-19 13:42:40,713 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 516 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:40,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 55 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 328 Invalid, 0 Unknown, 516 Unchecked, 0.7s Time] [2021-11-19 13:42:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2021-11-19 13:42:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1561. [2021-11-19 13:42:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1547 states have (on average 2.0239172592113768) internal successors, (3131), 1560 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 3131 transitions. [2021-11-19 13:42:40,760 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 3131 transitions. Word has length 39 [2021-11-19 13:42:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:40,761 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 3131 transitions. [2021-11-19 13:42:40,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 3131 transitions. [2021-11-19 13:42:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:42:40,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:40,762 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:40,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-11-19 13:42:40,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:40,977 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1177313793, now seen corresponding path program 6 times [2021-11-19 13:42:40,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:40,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327437754] [2021-11-19 13:42:40,978 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-19 13:42:40,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:40,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:40,979 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:40,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 13:42:41,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-19 13:42:41,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:41,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:42:41,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:41,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:42:41,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:41,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:41,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-19 13:42:41,641 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:42:41,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2021-11-19 13:42:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:41,797 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-19 13:42:41,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 36 [2021-11-19 13:42:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:43,901 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:42:43,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 53 [2021-11-19 13:42:44,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:44,079 INFO L354 Elim1Store]: treesize reduction 38, result has 20.8 percent of original size [2021-11-19 13:42:44,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 82 [2021-11-19 13:42:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:42:44,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:45,002 INFO L354 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2021-11-19 13:42:45,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 1 [2021-11-19 13:42:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:45,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:45,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327437754] [2021-11-19 13:42:45,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327437754] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:45,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:45,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 17 [2021-11-19 13:42:45,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11741316] [2021-11-19 13:42:45,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:45,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:42:45,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:42:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:42:45,046 INFO L87 Difference]: Start difference. First operand 1561 states and 3131 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:49,776 INFO L93 Difference]: Finished difference Result 2093 states and 4200 transitions. [2021-11-19 13:42:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:42:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 39 [2021-11-19 13:42:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:49,784 INFO L225 Difference]: With dead ends: 2093 [2021-11-19 13:42:49,784 INFO L226 Difference]: Without dead ends: 2093 [2021-11-19 13:42:49,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:42:49,785 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 80 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:49,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 52 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-19 13:42:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2021-11-19 13:42:49,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1549. [2021-11-19 13:42:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1535 states have (on average 2.0241042345276874) internal successors, (3107), 1548 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 3107 transitions. [2021-11-19 13:42:49,827 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 3107 transitions. Word has length 39 [2021-11-19 13:42:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:49,827 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 3107 transitions. [2021-11-19 13:42:49,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 3107 transitions. [2021-11-19 13:42:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 13:42:49,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:49,829 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:49,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-11-19 13:42:50,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:50,043 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:50,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1562257259, now seen corresponding path program 1 times [2021-11-19 13:42:50,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:50,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407581970] [2021-11-19 13:42:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:50,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:50,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:50,047 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:50,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 13:42:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:50,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:42:50,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:50,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:50,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:42:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:42:50,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,824 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:50,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-19 13:42:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:50,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:50,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 68 [2021-11-19 13:42:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:51,023 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:51,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 83 [2021-11-19 13:42:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:42:51,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:51,620 INFO L354 Elim1Store]: treesize reduction 227, result has 0.4 percent of original size [2021-11-19 13:42:51,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 147 treesize of output 1 [2021-11-19 13:42:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:42:51,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:51,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407581970] [2021-11-19 13:42:51,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407581970] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:51,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:42:51,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-11-19 13:42:51,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981092501] [2021-11-19 13:42:51,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:51,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:42:51,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:51,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:42:51,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:42:51,666 INFO L87 Difference]: Start difference. First operand 1549 states and 3107 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:54,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:55,625 INFO L93 Difference]: Finished difference Result 1908 states and 3832 transitions. [2021-11-19 13:42:55,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:42:55,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 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 40 [2021-11-19 13:42:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:55,629 INFO L225 Difference]: With dead ends: 1908 [2021-11-19 13:42:55,629 INFO L226 Difference]: Without dead ends: 1908 [2021-11-19 13:42:55,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:42:55,630 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:55,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 37 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-19 13:42:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2021-11-19 13:42:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1551. [2021-11-19 13:42:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1537 states have (on average 2.0240728692257646) internal successors, (3111), 1550 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 3111 transitions. [2021-11-19 13:42:55,669 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 3111 transitions. Word has length 40 [2021-11-19 13:42:55,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:55,670 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 3111 transitions. [2021-11-19 13:42:55,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:42:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 3111 transitions. [2021-11-19 13:42:55,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 13:42:55,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:55,671 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:55,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:55,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:55,886 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:42:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:55,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1265383689, now seen corresponding path program 2 times [2021-11-19 13:42:55,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:55,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64051181] [2021-11-19 13:42:55,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:42:55,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:55,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:55,888 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:55,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 13:42:55,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:42:55,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:55,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:42:55,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:56,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:42:56,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:42:56,267 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:42:56,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2021-11-19 13:42:56,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-19 13:42:56,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:56,569 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:42:56,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:42:56,784 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-19 13:42:56,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 76 [2021-11-19 13:43:01,047 INFO L354 Elim1Store]: treesize reduction 167, result has 21.6 percent of original size [2021-11-19 13:43:01,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 103 [2021-11-19 13:43:05,554 INFO L354 Elim1Store]: treesize reduction 238, result has 19.6 percent of original size [2021-11-19 13:43:05,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 116 treesize of output 139 [2021-11-19 13:43:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:43:05,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:08,694 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~2#1| (_ BitVec 32))) (let ((.cse1 (bvmul |ULTIMATE.start_main_~i~2#1| (_ bv28 32)))) (or (= (_ bv0 1) (bvneg (select (store (store (select (let ((.cse0 (let ((.cse2 (store |c_#race| |c_~#cache~0.base| (store (select |c_#race| |c_~#cache~0.base|) (bvadd (bvmul (_ bv28 32) |ULTIMATE.start_main_~i~2#1|) |c_~#cache~0.offset|) (_ bv0 1))))) (store .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv1 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)))))) (store .cse0 |c_~#cache~0.base| (store (select .cse0 |c_~#cache~0.base|) (bvadd .cse1 |c_~#cache~0.offset| (_ bv1 32)) (_ bv0 1)))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv2 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))) (not (= (_ bv0 1) (bvneg (bvneg (select (select |c_#pthreadsMutex| |c_~#cache~0.base|) (bvadd .cse1 (_ bv4 32) |c_~#cache~0.offset|))))))))) is different from false [2021-11-19 13:43:08,765 INFO L354 Elim1Store]: treesize reduction 297, result has 0.3 percent of original size [2021-11-19 13:43:08,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 179 treesize of output 1 [2021-11-19 13:43:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:43:08,816 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:08,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64051181] [2021-11-19 13:43:08,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64051181] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:43:08,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:43:08,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 17 [2021-11-19 13:43:08,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990499535] [2021-11-19 13:43:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:08,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:43:08,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:08,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:43:08,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=193, Unknown=1, NotChecked=30, Total=306 [2021-11-19 13:43:08,818 INFO L87 Difference]: Start difference. First operand 1551 states and 3111 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:16,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:43:16,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:16,801 INFO L93 Difference]: Finished difference Result 1982 states and 3979 transitions. [2021-11-19 13:43:16,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:43:16,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 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 40 [2021-11-19 13:43:16,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:16,805 INFO L225 Difference]: With dead ends: 1982 [2021-11-19 13:43:16,805 INFO L226 Difference]: Without dead ends: 1982 [2021-11-19 13:43:16,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=96, Invalid=213, Unknown=1, NotChecked=32, Total=342 [2021-11-19 13:43:16,806 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 86 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 286 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:16,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 37 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 313 Invalid, 1 Unknown, 286 Unchecked, 3.5s Time] [2021-11-19 13:43:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2021-11-19 13:43:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1547. [2021-11-19 13:43:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1533 states have (on average 2.0241356816699283) internal successors, (3103), 1546 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 3103 transitions. [2021-11-19 13:43:16,839 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 3103 transitions. Word has length 40 [2021-11-19 13:43:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:16,839 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 3103 transitions. [2021-11-19 13:43:16,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 3103 transitions. [2021-11-19 13:43:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 13:43:16,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:16,841 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:43:16,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:17,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:17,055 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:43:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1614778129, now seen corresponding path program 3 times [2021-11-19 13:43:17,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:17,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048091085] [2021-11-19 13:43:17,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:43:17,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:17,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:17,057 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:17,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 13:43:17,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:43:17,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:43:17,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:43:17,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:17,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:43:17,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:43:17,488 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:43:17,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2021-11-19 13:43:17,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:43:17,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:17,770 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:43:17,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 40 [2021-11-19 13:43:18,046 INFO L354 Elim1Store]: treesize reduction 107, result has 24.6 percent of original size [2021-11-19 13:43:18,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 75 [2021-11-19 13:43:22,416 INFO L354 Elim1Store]: treesize reduction 167, result has 21.6 percent of original size [2021-11-19 13:43:22,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 97 [2021-11-19 13:43:26,743 INFO L354 Elim1Store]: treesize reduction 238, result has 19.6 percent of original size [2021-11-19 13:43:26,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 122 [2021-11-19 13:43:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:43:29,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:42,784 WARN L227 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 56 DAG size of output: 1 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:43:42,784 INFO L354 Elim1Store]: treesize reduction 297, result has 0.3 percent of original size [2021-11-19 13:43:42,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 186 treesize of output 1 [2021-11-19 13:43:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:43:42,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:42,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048091085] [2021-11-19 13:43:42,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048091085] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:43:42,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:43:42,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 17 [2021-11-19 13:43:42,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113462881] [2021-11-19 13:43:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:42,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:43:42,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:43:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=211, Unknown=3, NotChecked=0, Total=306 [2021-11-19 13:43:42,844 INFO L87 Difference]: Start difference. First operand 1547 states and 3103 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:51,664 INFO L93 Difference]: Finished difference Result 2012 states and 4024 transitions. [2021-11-19 13:43:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:43:51,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 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 40 [2021-11-19 13:43:51,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:51,668 INFO L225 Difference]: With dead ends: 2012 [2021-11-19 13:43:51,668 INFO L226 Difference]: Without dead ends: 2012 [2021-11-19 13:43:51,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=121, Invalid=255, Unknown=4, NotChecked=0, Total=380 [2021-11-19 13:43:51,670 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 142 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:51,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 29 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 232 Invalid, 0 Unknown, 142 Unchecked, 1.0s Time] [2021-11-19 13:43:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2021-11-19 13:43:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1546. [2021-11-19 13:43:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1532 states have (on average 2.0241514360313317) internal successors, (3101), 1545 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 3101 transitions. [2021-11-19 13:43:51,692 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 3101 transitions. Word has length 40 [2021-11-19 13:43:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:51,692 INFO L470 AbstractCegarLoop]: Abstraction has 1546 states and 3101 transitions. [2021-11-19 13:43:51,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 3101 transitions. [2021-11-19 13:43:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:43:51,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:51,693 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:43:51,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:51,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:51,894 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:43:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash 807830220, now seen corresponding path program 1 times [2021-11-19 13:43:51,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:51,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726266933] [2021-11-19 13:43:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:51,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:51,896 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:51,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 13:43:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:52,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:43:52,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:52,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:43:52,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:43:52,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-19 13:43:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2021-11-19 13:43:52,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,800 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:43:52,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 71 [2021-11-19 13:43:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:52,905 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:43:52,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 87 [2021-11-19 13:43:53,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:43:53,088 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:43:53,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 103 [2021-11-19 13:43:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:43:53,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:55,684 INFO L354 Elim1Store]: treesize reduction 399, result has 0.3 percent of original size [2021-11-19 13:43:55,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 170 treesize of output 1 [2021-11-19 13:43:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:43:55,730 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:55,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726266933] [2021-11-19 13:43:55,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726266933] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:43:55,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:43:55,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 21 [2021-11-19 13:43:55,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022215409] [2021-11-19 13:43:55,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:55,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:43:55,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:43:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:43:55,732 INFO L87 Difference]: Start difference. First operand 1546 states and 3101 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:43:59,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:00,024 INFO L93 Difference]: Finished difference Result 1934 states and 3887 transitions. [2021-11-19 13:44:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:44:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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 41 [2021-11-19 13:44:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:00,028 INFO L225 Difference]: With dead ends: 1934 [2021-11-19 13:44:00,028 INFO L226 Difference]: Without dead ends: 1934 [2021-11-19 13:44:00,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:44:00,029 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:00,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 35 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-19 13:44:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2021-11-19 13:44:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1544. [2021-11-19 13:44:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1530 states have (on average 2.0241830065359476) internal successors, (3097), 1543 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:44:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 3097 transitions. [2021-11-19 13:44:00,056 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 3097 transitions. Word has length 41 [2021-11-19 13:44:00,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:00,056 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 3097 transitions. [2021-11-19 13:44:00,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:44:00,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 3097 transitions. [2021-11-19 13:44:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:44:00,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:00,058 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:44:00,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-11-19 13:44:00,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:00,258 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:44:00,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1420976298, now seen corresponding path program 2 times [2021-11-19 13:44:00,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:00,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177955162] [2021-11-19 13:44:00,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:44:00,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:00,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:00,260 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:00,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 13:44:00,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:44:00,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:44:00,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:44:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:00,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:44:00,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:44:00,597 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:44:00,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2021-11-19 13:44:00,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-19 13:44:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:00,862 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:44:00,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 39 [2021-11-19 13:44:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:01,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:01,095 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:44:01,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 61 [2021-11-19 13:44:09,520 WARN L227 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 71 DAG size of output: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:44:09,521 INFO L354 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2021-11-19 13:44:09,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 100 [2021-11-19 13:44:13,872 INFO L354 Elim1Store]: treesize reduction 252, result has 19.2 percent of original size [2021-11-19 13:44:13,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 129 [2021-11-19 13:44:22,365 WARN L227 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 125 DAG size of output: 31 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:44:22,365 INFO L354 Elim1Store]: treesize reduction 339, result has 17.1 percent of original size [2021-11-19 13:44:22,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 148 [2021-11-19 13:44:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:44:22,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:34,235 INFO L354 Elim1Store]: treesize reduction 543, result has 0.2 percent of original size [2021-11-19 13:44:34,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 220 treesize of output 1 [2021-11-19 13:44:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:44:34,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:34,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177955162] [2021-11-19 13:44:34,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177955162] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:44:34,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:44:34,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 19 [2021-11-19 13:44:34,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157072122] [2021-11-19 13:44:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:34,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:44:34,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:44:34,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=260, Unknown=4, NotChecked=0, Total=380 [2021-11-19 13:44:34,290 INFO L87 Difference]: Start difference. First operand 1544 states and 3097 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:44:50,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:50,645 INFO L93 Difference]: Finished difference Result 2111 states and 4222 transitions. [2021-11-19 13:44:50,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:44:50,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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 41 [2021-11-19 13:44:50,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:50,654 INFO L225 Difference]: With dead ends: 2111 [2021-11-19 13:44:50,655 INFO L226 Difference]: Without dead ends: 2111 [2021-11-19 13:44:50,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=133, Invalid=282, Unknown=5, NotChecked=0, Total=420 [2021-11-19 13:44:50,656 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 39 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:50,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 30 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 330 Invalid, 1 Unknown, 132 Unchecked, 3.8s Time] [2021-11-19 13:44:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2021-11-19 13:44:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1551. [2021-11-19 13:44:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1537 states have (on average 2.0240728692257646) internal successors, (3111), 1550 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:44:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 3111 transitions. [2021-11-19 13:44:50,702 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 3111 transitions. Word has length 41 [2021-11-19 13:44:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:50,702 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 3111 transitions. [2021-11-19 13:44:50,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:44:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 3111 transitions. [2021-11-19 13:44:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:44:50,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:50,704 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:44:50,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:50,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:50,905 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:44:50,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:50,905 INFO L85 PathProgramCache]: Analyzing trace with hash 511679440, now seen corresponding path program 3 times [2021-11-19 13:44:50,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:50,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859589445] [2021-11-19 13:44:50,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:44:50,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:50,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:50,907 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:50,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 13:44:50,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:44:50,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:44:50,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:44:50,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:51,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:44:51,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:44:51,379 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:44:51,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 14 [2021-11-19 13:44:51,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:44:51,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:51,656 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:44:51,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-19 13:44:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:44:51,816 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:44:51,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 65 [2021-11-19 13:45:00,652 WARN L227 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 71 DAG size of output: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:45:00,653 INFO L354 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2021-11-19 13:45:00,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 104 [2021-11-19 13:45:05,097 INFO L354 Elim1Store]: treesize reduction 252, result has 19.2 percent of original size [2021-11-19 13:45:05,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 131 [2021-11-19 13:45:13,474 WARN L227 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 125 DAG size of output: 31 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:45:13,475 INFO L354 Elim1Store]: treesize reduction 339, result has 17.1 percent of original size [2021-11-19 13:45:13,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 126 treesize of output 153 [2021-11-19 13:45:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:45:13,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:25,018 INFO L354 Elim1Store]: treesize reduction 543, result has 0.2 percent of original size [2021-11-19 13:45:25,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 223 treesize of output 1 [2021-11-19 13:45:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:45:25,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:25,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859589445] [2021-11-19 13:45:25,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859589445] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:45:25,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:45:25,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 19 [2021-11-19 13:45:25,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327052624] [2021-11-19 13:45:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:25,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:45:25,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:45:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=260, Unknown=4, NotChecked=0, Total=380 [2021-11-19 13:45:25,062 INFO L87 Difference]: Start difference. First operand 1551 states and 3111 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:45:40,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:41,594 INFO L93 Difference]: Finished difference Result 2078 states and 4169 transitions. [2021-11-19 13:45:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:45:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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 41 [2021-11-19 13:45:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:41,605 INFO L225 Difference]: With dead ends: 2078 [2021-11-19 13:45:41,605 INFO L226 Difference]: Without dead ends: 2078 [2021-11-19 13:45:41,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=133, Invalid=282, Unknown=5, NotChecked=0, Total=420 [2021-11-19 13:45:41,606 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:41,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 37 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 374 Invalid, 1 Unknown, 138 Unchecked, 4.1s Time] [2021-11-19 13:45:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-11-19 13:45:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1549. [2021-11-19 13:45:41,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1535 states have (on average 2.0241042345276874) internal successors, (3107), 1548 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:45:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 3107 transitions. [2021-11-19 13:45:41,630 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 3107 transitions. Word has length 41 [2021-11-19 13:45:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:41,630 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 3107 transitions. [2021-11-19 13:45:41,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:45:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 3107 transitions. [2021-11-19 13:45:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:45:41,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:41,633 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:41,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:41,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:41,846 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:45:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1483720566, now seen corresponding path program 4 times [2021-11-19 13:45:41,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:41,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891695683] [2021-11-19 13:45:41,847 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:45:41,848 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:41,849 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:41,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 13:45:41,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:45:41,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:45:41,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:45:41,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:42,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:45:42,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 13:45:42,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-19 13:45:42,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-11-19 13:45:42,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:45:42,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2021-11-19 13:45:42,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,636 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:45:42,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 89 [2021-11-19 13:45:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:45:42,766 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:45:42,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 106 [2021-11-19 13:45:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:45:42,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:58,300 WARN L227 SmtUtils]: Spent 14.35s on a formula simplification. DAG size of input: 71 DAG size of output: 1 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:45:58,300 INFO L354 Elim1Store]: treesize reduction 404, result has 0.2 percent of original size [2021-11-19 13:45:58,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 156 treesize of output 1 [2021-11-19 13:45:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:45:58,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:58,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891695683] [2021-11-19 13:45:58,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891695683] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:45:58,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:45:58,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 23 [2021-11-19 13:45:58,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954973086] [2021-11-19 13:45:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:58,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:45:58,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:45:58,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:45:58,359 INFO L87 Difference]: Start difference. First operand 1549 states and 3107 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:46:09,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:46:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:39,318 INFO L93 Difference]: Finished difference Result 1984 states and 3986 transitions. [2021-11-19 13:46:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 13:46:39,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 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 41 [2021-11-19 13:46:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:39,323 INFO L225 Difference]: With dead ends: 1984 [2021-11-19 13:46:39,323 INFO L226 Difference]: Without dead ends: 1984 [2021-11-19 13:46:39,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:46:39,324 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 110 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:39,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 41 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 35.6s Time] [2021-11-19 13:46:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2021-11-19 13:46:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1548. [2021-11-19 13:46:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1534 states have (on average 2.0241199478487615) internal successors, (3105), 1547 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:46:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 3105 transitions. [2021-11-19 13:46:39,352 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 3105 transitions. Word has length 41 [2021-11-19 13:46:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:39,352 INFO L470 AbstractCegarLoop]: Abstraction has 1548 states and 3105 transitions. [2021-11-19 13:46:39,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:46:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 3105 transitions. [2021-11-19 13:46:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:46:39,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:39,354 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:39,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:39,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:39,554 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:46:39,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1481558316, now seen corresponding path program 5 times [2021-11-19 13:46:39,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:39,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725966741] [2021-11-19 13:46:39,555 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-19 13:46:39,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:39,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:39,556 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:39,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 13:46:39,697 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-19 13:46:39,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:46:39,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:46:39,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:39,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:46:39,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:46:40,162 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:46:40,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2021-11-19 13:46:40,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:46:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,185 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:46:42,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2021-11-19 13:46:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,363 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:46:42,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 62 [2021-11-19 13:46:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:42,732 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-19 13:46:42,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 78 [2021-11-19 13:46:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,407 INFO L354 Elim1Store]: treesize reduction 261, result has 19.9 percent of original size [2021-11-19 13:46:43,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 129 [2021-11-19 13:46:43,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:46:43,821 INFO L354 Elim1Store]: treesize reduction 279, result has 14.2 percent of original size [2021-11-19 13:46:43,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 148 treesize of output 171 [2021-11-19 13:46:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:46:44,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:01,441 INFO L354 Elim1Store]: treesize reduction 841, result has 0.1 percent of original size [2021-11-19 13:47:01,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 647 treesize of output 1 [2021-11-19 13:47:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:47:01,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:01,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725966741] [2021-11-19 13:47:01,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725966741] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:47:01,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:47:01,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 22 [2021-11-19 13:47:01,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181895496] [2021-11-19 13:47:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:01,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:47:01,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:47:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=378, Unknown=4, NotChecked=0, Total=506 [2021-11-19 13:47:01,486 INFO L87 Difference]: Start difference. First operand 1548 states and 3105 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:12,075 INFO L93 Difference]: Finished difference Result 2003 states and 4025 transitions. [2021-11-19 13:47:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:47:12,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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 41 [2021-11-19 13:47:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:12,080 INFO L225 Difference]: With dead ends: 2003 [2021-11-19 13:47:12,080 INFO L226 Difference]: Without dead ends: 2003 [2021-11-19 13:47:12,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=139, Invalid=408, Unknown=5, NotChecked=0, Total=552 [2021-11-19 13:47:12,081 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 101 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:12,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 33 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 337 Invalid, 0 Unknown, 270 Unchecked, 3.9s Time] [2021-11-19 13:47:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-11-19 13:47:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1547. [2021-11-19 13:47:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1533 states have (on average 2.0241356816699283) internal successors, (3103), 1546 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 3103 transitions. [2021-11-19 13:47:12,112 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 3103 transitions. Word has length 41 [2021-11-19 13:47:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:12,113 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 3103 transitions. [2021-11-19 13:47:12,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 3103 transitions. [2021-11-19 13:47:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:47:12,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:12,115 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:47:12,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-11-19 13:47:12,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:12,331 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:47:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1481487636, now seen corresponding path program 6 times [2021-11-19 13:47:12,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:12,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728008817] [2021-11-19 13:47:12,332 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-19 13:47:12,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:12,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:12,333 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:12,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 13:47:12,417 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-19 13:47:12,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:47:12,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:47:12,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:12,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:47:12,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:47:12,763 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:47:12,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2021-11-19 13:47:12,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:47:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:13,584 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:47:13,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 41 [2021-11-19 13:47:13,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:13,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:13,906 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:47:13,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 64 [2021-11-19 13:47:14,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,235 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-19 13:47:14,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 97 [2021-11-19 13:47:14,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:14,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:22,611 WARN L227 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 49 DAG size of output: 12 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:47:22,611 INFO L354 Elim1Store]: treesize reduction 87, result has 17.1 percent of original size [2021-11-19 13:47:22,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 122 [2021-11-19 13:47:31,034 WARN L227 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 126 DAG size of output: 33 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:47:31,034 INFO L354 Elim1Store]: treesize reduction 347, result has 16.4 percent of original size [2021-11-19 13:47:31,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 139 [2021-11-19 13:47:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:47:31,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:35,183 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~2#1| (_ BitVec 32))) (let ((.cse0 (bvmul |ULTIMATE.start_main_~i~2#1| (_ bv28 32)))) (or (not (= (_ bv0 1) (bvneg (bvneg (select (select |c_#pthreadsMutex| |c_~#cache~0.base|) (bvadd .cse0 (_ bv4 32) |c_~#cache~0.offset|)))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#race| |c_~#cache~0.base| (store (select |c_#race| |c_~#cache~0.base|) (bvadd (bvmul (_ bv28 32) |ULTIMATE.start_main_~i~2#1|) |c_~#cache~0.offset|) (_ bv0 1))))) (store .cse4 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse4 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv1 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)))))) (store .cse3 |c_~#cache~0.base| (store (select .cse3 |c_~#cache~0.base|) (bvadd .cse0 |c_~#cache~0.offset| (_ bv1 32)) (_ bv0 1)))))) (store .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (store (select .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) (bvadd (_ bv2 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) (_ bv0 1)))))) (store .cse1 |c_~#cache~0.base| (store (select .cse1 |c_~#cache~0.base|) (bvadd .cse0 (_ bv2 32) |c_~#cache~0.offset|) (_ bv0 1)))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))))))))))))))))) is different from false [2021-11-19 13:47:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:47:35,314 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:35,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728008817] [2021-11-19 13:47:35,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728008817] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:47:35,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:47:35,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 19 [2021-11-19 13:47:35,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412888987] [2021-11-19 13:47:35,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:35,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:47:35,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:35,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:47:35,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=236, Unknown=1, NotChecked=34, Total=380 [2021-11-19 13:47:35,316 INFO L87 Difference]: Start difference. First operand 1547 states and 3103 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:48,668 INFO L93 Difference]: Finished difference Result 2055 states and 4120 transitions. [2021-11-19 13:47:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:47:48,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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 41 [2021-11-19 13:47:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:48,674 INFO L225 Difference]: With dead ends: 2055 [2021-11-19 13:47:48,675 INFO L226 Difference]: Without dead ends: 2055 [2021-11-19 13:47:48,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=122, Invalid=261, Unknown=1, NotChecked=36, Total=420 [2021-11-19 13:47:48,676 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 52 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 212 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:48,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 30 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 344 Invalid, 0 Unknown, 212 Unchecked, 6.4s Time] [2021-11-19 13:47:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-19 13:47:48,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1537. [2021-11-19 13:47:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1523 states have (on average 2.0242941562705186) internal successors, (3083), 1536 states have internal predecessors, (3083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:48,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 3083 transitions. [2021-11-19 13:47:48,714 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 3083 transitions. Word has length 41 [2021-11-19 13:47:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:48,714 INFO L470 AbstractCegarLoop]: Abstraction has 1537 states and 3083 transitions. [2021-11-19 13:47:48,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:47:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 3083 transitions. [2021-11-19 13:47:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:47:48,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:48,716 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:47:48,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:48,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:48,919 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:47:48,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1513571874, now seen corresponding path program 1 times [2021-11-19 13:47:48,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:48,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593359051] [2021-11-19 13:47:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:48,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:48,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:48,921 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:48,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 13:47:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:49,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:47:49,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:49,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:47:49,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:47:49,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-19 13:47:49,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2021-11-19 13:47:49,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 65 [2021-11-19 13:47:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,807 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:47:49,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 90 [2021-11-19 13:47:49,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:49,940 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:47:49,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 107 [2021-11-19 13:47:50,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:47:50,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:47:50,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 107 treesize of output 124 [2021-11-19 13:47:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:47:50,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:57,503 WARN L227 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 94 DAG size of output: 1 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:47:57,504 INFO L354 Elim1Store]: treesize reduction 635, result has 0.2 percent of original size [2021-11-19 13:47:57,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 1 [2021-11-19 13:47:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:47:57,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:57,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593359051] [2021-11-19 13:47:57,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593359051] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:47:57,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:47:57,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 23 [2021-11-19 13:47:57,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412652147] [2021-11-19 13:47:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:57,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:47:57,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:47:57,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:47:57,577 INFO L87 Difference]: Start difference. First operand 1537 states and 3083 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:02,144 INFO L93 Difference]: Finished difference Result 2285 states and 4635 transitions. [2021-11-19 13:48:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:48:02,145 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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 42 [2021-11-19 13:48:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:02,149 INFO L225 Difference]: With dead ends: 2285 [2021-11-19 13:48:02,149 INFO L226 Difference]: Without dead ends: 2285 [2021-11-19 13:48:02,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:48:02,151 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 112 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:02,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 34 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-19 13:48:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2021-11-19 13:48:02,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 1525. [2021-11-19 13:48:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1512 states have (on average 2.0205026455026456) internal successors, (3055), 1524 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:02,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 3055 transitions. [2021-11-19 13:48:02,188 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 3055 transitions. Word has length 42 [2021-11-19 13:48:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:02,188 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 3055 transitions. [2021-11-19 13:48:02,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 3055 transitions. [2021-11-19 13:48:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:48:02,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:02,191 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:02,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-11-19 13:48:02,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:48:02,407 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:48:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash -953736188, now seen corresponding path program 2 times [2021-11-19 13:48:02,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:02,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881386138] [2021-11-19 13:48:02,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:48:02,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:02,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:02,410 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:02,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 13:48:02,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:48:02,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:48:02,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:48:02,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:02,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:48:02,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:48:02,873 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:48:02,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2021-11-19 13:48:03,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:48:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,182 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:48:03,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2021-11-19 13:48:03,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,353 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:48:03,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 65 [2021-11-19 13:48:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:03,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:07,663 INFO L354 Elim1Store]: treesize reduction 63, result has 24.1 percent of original size [2021-11-19 13:48:07,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 85 [2021-11-19 13:48:14,442 INFO L354 Elim1Store]: treesize reduction 272, result has 18.1 percent of original size [2021-11-19 13:48:14,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 138 [2021-11-19 13:48:22,974 WARN L227 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 125 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:48:22,975 INFO L354 Elim1Store]: treesize reduction 355, result has 16.9 percent of original size [2021-11-19 13:48:22,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 161 treesize of output 188 [2021-11-19 13:48:31,637 WARN L227 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 158 DAG size of output: 36 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:48:31,638 INFO L354 Elim1Store]: treesize reduction 454, result has 15.6 percent of original size [2021-11-19 13:48:31,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 189 treesize of output 222 [2021-11-19 13:48:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:48:32,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:42,756 INFO L354 Elim1Store]: treesize reduction 887, result has 0.1 percent of original size [2021-11-19 13:48:42,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 255 treesize of output 1 [2021-11-19 13:48:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:48:42,801 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:42,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881386138] [2021-11-19 13:48:42,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881386138] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:48:42,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:48:42,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 21 [2021-11-19 13:48:42,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857753196] [2021-11-19 13:48:42,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:42,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:48:42,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:42,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:48:42,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=314, Unknown=4, NotChecked=0, Total=462 [2021-11-19 13:48:42,803 INFO L87 Difference]: Start difference. First operand 1525 states and 3055 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:58,406 INFO L93 Difference]: Finished difference Result 2349 states and 4773 transitions. [2021-11-19 13:48:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:48:58,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 42 [2021-11-19 13:48:58,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:58,411 INFO L225 Difference]: With dead ends: 2349 [2021-11-19 13:48:58,411 INFO L226 Difference]: Without dead ends: 2349 [2021-11-19 13:48:58,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=163, Invalid=336, Unknown=7, NotChecked=0, Total=506 [2021-11-19 13:48:58,412 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 157 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 244 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:58,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 35 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 331 Invalid, 0 Unknown, 244 Unchecked, 3.0s Time] [2021-11-19 13:48:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-19 13:48:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1521. [2021-11-19 13:48:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1508 states have (on average 2.0205570291777186) internal successors, (3047), 1520 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 3047 transitions. [2021-11-19 13:48:58,455 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 3047 transitions. Word has length 42 [2021-11-19 13:48:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:58,455 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 3047 transitions. [2021-11-19 13:48:58,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:48:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 3047 transitions. [2021-11-19 13:48:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:48:58,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:58,457 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:58,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:58,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:48:58,657 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:48:58,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:58,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1096480432, now seen corresponding path program 3 times [2021-11-19 13:48:58,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:58,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790353717] [2021-11-19 13:48:58,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:48:58,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:58,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:58,662 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:58,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 13:48:58,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 13:48:58,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:48:58,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:48:58,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:58,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:48:58,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:48:59,064 INFO L354 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2021-11-19 13:48:59,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2021-11-19 13:48:59,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:48:59,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,351 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 13:48:59,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2021-11-19 13:48:59,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,541 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-19 13:48:59,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 50 [2021-11-19 13:48:59,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:48:59,867 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-19 13:48:59,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 81 [2021-11-19 13:49:04,249 INFO L354 Elim1Store]: treesize reduction 272, result has 18.1 percent of original size [2021-11-19 13:49:04,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 124 [2021-11-19 13:49:08,683 INFO L354 Elim1Store]: treesize reduction 353, result has 17.3 percent of original size [2021-11-19 13:49:08,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 149 [2021-11-19 13:49:17,246 WARN L227 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 158 DAG size of output: 36 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:49:17,246 INFO L354 Elim1Store]: treesize reduction 454, result has 15.6 percent of original size [2021-11-19 13:49:17,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 154 treesize of output 187 [2021-11-19 13:49:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 13:49:17,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:30,435 INFO L354 Elim1Store]: treesize reduction 890, result has 0.1 percent of original size [2021-11-19 13:49:30,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 221 treesize of output 1 [2021-11-19 13:49:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:49:30,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:30,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790353717] [2021-11-19 13:49:30,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790353717] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:49:30,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:49:30,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 21 [2021-11-19 13:49:30,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425638410] [2021-11-19 13:49:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:30,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:49:30,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:49:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=316, Unknown=4, NotChecked=0, Total=462 [2021-11-19 13:49:30,493 INFO L87 Difference]: Start difference. First operand 1521 states and 3047 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:49:41,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:41,173 INFO L93 Difference]: Finished difference Result 2348 states and 4753 transitions. [2021-11-19 13:49:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:49:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 42 [2021-11-19 13:49:41,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:41,177 INFO L225 Difference]: With dead ends: 2348 [2021-11-19 13:49:41,177 INFO L226 Difference]: Without dead ends: 2348 [2021-11-19 13:49:41,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=160, Invalid=341, Unknown=5, NotChecked=0, Total=506 [2021-11-19 13:49:41,178 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 99 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 292 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:41,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 36 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 520 Invalid, 0 Unknown, 292 Unchecked, 3.4s Time] [2021-11-19 13:49:41,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2021-11-19 13:49:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 1527. [2021-11-19 13:49:41,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1514 states have (on average 2.0204755614266845) internal successors, (3059), 1526 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:49:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 3059 transitions. [2021-11-19 13:49:41,217 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 3059 transitions. Word has length 42 [2021-11-19 13:49:41,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:41,217 INFO L470 AbstractCegarLoop]: Abstraction has 1527 states and 3059 transitions. [2021-11-19 13:49:41,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:49:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 3059 transitions. [2021-11-19 13:49:41,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:49:41,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:41,220 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:49:41,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:41,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:41,436 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 13:49:41,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:41,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1100458972, now seen corresponding path program 4 times [2021-11-19 13:49:41,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:41,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360448716] [2021-11-19 13:49:41,437 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:49:41,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:41,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:41,440 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:41,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fddcdba-da42-4fe2-b195-969fc49a4ee4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 13:49:41,611 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:49:41,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:49:41,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:49:41,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:41,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 13:49:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-19 13:49:42,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-19 13:49:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2021-11-19 13:49:42,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2021-11-19 13:49:42,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2021-11-19 13:49:42,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:49:42,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 104 [2021-11-19 13:49:42,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:49:42,744 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:49:42,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 126 [2021-11-19 13:49:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:49:42,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:52,329 WARN L227 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 126 DAG size of output: 1 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:49:52,329 INFO L354 Elim1Store]: treesize reduction 1293, result has 0.1 percent of original size [2021-11-19 13:49:52,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 760 treesize of output 1 [2021-11-19 13:49:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 13:49:52,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:52,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360448716] [2021-11-19 13:49:52,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360448716] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:49:52,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:49:52,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 24 [2021-11-19 13:49:52,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387269985] [2021-11-19 13:49:52,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:52,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:49:52,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:49:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:49:52,376 INFO L87 Difference]: Start difference. First operand 1527 states and 3059 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:50:06,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:50:15,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:50:21,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:50:35,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []