/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:21:05,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:21:05,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:21:05,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 18:21:05,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 18:21:05,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 18:21:05,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 18:21:05,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 18:21:05,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 18:21:05,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 18:21:05,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 18:21:05,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 18:21:05,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 18:21:05,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 18:21:05,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 18:21:05,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 18:21:05,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 18:21:05,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 18:21:05,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 18:21:05,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 18:21:05,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 18:21:05,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 18:21:05,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 18:21:05,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 18:21:05,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 18:21:05,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 18:21:05,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 18:21:05,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 18:21:05,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 18:21:05,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-03 18:21:05,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:21:05,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:21:05,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:21:05,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 18:21:05,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:21:05,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:21:05,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:21:05,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:21:05,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:21:05,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:21:05,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:21:05,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:21:05,322 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:21:05,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:21:05,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:21:05,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:21:05,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:21:05,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:21:05,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:21:05,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:21:05,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:21:05,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:21:05,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:21:05,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:21:05,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:21:05,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:21:05,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:21:05,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:21:05,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:21:05,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:21:05,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:21:05,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-03 18:21:05,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:21:05,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:21:05,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:21:05,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 18:21:05,599 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 18:21:05,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2022-03-03 18:21:05,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3839a84d2/1a2b270ac6224df78a6ee5faf8bd2815/FLAG103ada195 [2022-03-03 18:21:06,215 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 18:21:06,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2022-03-03 18:21:06,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3839a84d2/1a2b270ac6224df78a6ee5faf8bd2815/FLAG103ada195 [2022-03-03 18:21:06,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3839a84d2/1a2b270ac6224df78a6ee5faf8bd2815 [2022-03-03 18:21:06,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:21:06,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 18:21:06,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 18:21:06,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 18:21:06,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 18:21:06,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:21:06" (1/1) ... [2022-03-03 18:21:06,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517a0309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:06, skipping insertion in model container [2022-03-03 18:21:06,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:21:06" (1/1) ... [2022-03-03 18:21:06,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 18:21:06,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 18:21:07,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:21:07,070 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 18:21:07,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:21:07,180 INFO L208 MainTranslator]: Completed translation [2022-03-03 18:21:07,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07 WrapperNode [2022-03-03 18:21:07,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 18:21:07,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:21:07,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:21:07,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:21:07,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,247 INFO L137 Inliner]: procedures = 263, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-03-03 18:21:07,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:21:07,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:21:07,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:21:07,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:21:07,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:21:07,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:21:07,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:21:07,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:21:07,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (1/1) ... [2022-03-03 18:21:07,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:21:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:07,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 18:21:07,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 18:21:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-03-03 18:21:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-03-03 18:21:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 18:21:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 18:21:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 18:21:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-03 18:21:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-03 18:21:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:21:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:21:07,381 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:21:07,510 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:21:07,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:21:07,671 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:21:07,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:21:07,678 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-03 18:21:07,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:21:07 BoogieIcfgContainer [2022-03-03 18:21:07,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:21:07,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:21:07,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:21:07,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:21:07,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:21:06" (1/3) ... [2022-03-03 18:21:07,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e23f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:21:07, skipping insertion in model container [2022-03-03 18:21:07,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:21:07" (2/3) ... [2022-03-03 18:21:07,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e23f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:21:07, skipping insertion in model container [2022-03-03 18:21:07,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:21:07" (3/3) ... [2022-03-03 18:21:07,692 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2022-03-03 18:21:07,697 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:21:07,697 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:21:07,697 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-03-03 18:21:07,697 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:21:07,730 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,731 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,731 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,731 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,731 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,732 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,732 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,732 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,732 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,732 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,733 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,733 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,733 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,733 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,733 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,734 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,734 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,734 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,734 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,734 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,735 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,736 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,736 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,736 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,736 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,737 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,737 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,745 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,746 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,746 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,746 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,746 WARN L322 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,747 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,747 WARN L322 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:21:07,749 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 18:21:07,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:21:07,802 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:21:07,802 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-03-03 18:21:07,819 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 92 transitions, 189 flow [2022-03-03 18:21:07,883 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 556 states, 539 states have (on average 1.9053803339517625) internal successors, (1027), 555 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:07,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 556 states, 539 states have (on average 1.9053803339517625) internal successors, (1027), 555 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:21:07,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:07,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:07,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1989740307, now seen corresponding path program 1 times [2022-03-03 18:21:07,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:07,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636213310] [2022-03-03 18:21:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:08,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:08,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636213310] [2022-03-03 18:21:08,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636213310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:08,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:21:08,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:21:08,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288904771] [2022-03-03 18:21:08,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:08,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 18:21:08,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:08,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 18:21:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:21:08,169 INFO L87 Difference]: Start difference. First operand has 556 states, 539 states have (on average 1.9053803339517625) internal successors, (1027), 555 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 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) [2022-03-03 18:21:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:08,216 INFO L93 Difference]: Finished difference Result 556 states and 1026 transitions. [2022-03-03 18:21:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 18:21:08,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 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 26 [2022-03-03 18:21:08,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:08,241 INFO L225 Difference]: With dead ends: 556 [2022-03-03 18:21:08,241 INFO L226 Difference]: Without dead ends: 556 [2022-03-03 18:21:08,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 18:21:08,252 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:08,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-03-03 18:21:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2022-03-03 18:21:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 539 states have (on average 1.9035250463821893) internal successors, (1026), 555 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1026 transitions. [2022-03-03 18:21:08,358 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1026 transitions. Word has length 26 [2022-03-03 18:21:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:08,359 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 1026 transitions. [2022-03-03 18:21:08,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 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) [2022-03-03 18:21:08,364 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1026 transitions. [2022-03-03 18:21:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:21:08,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:08,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:08,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:21:08,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1793226802, now seen corresponding path program 1 times [2022-03-03 18:21:08,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:08,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928236095] [2022-03-03 18:21:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:08,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:08,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:08,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928236095] [2022-03-03 18:21:08,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928236095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:08,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:21:08,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:21:08,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003825673] [2022-03-03 18:21:08,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:08,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:08,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:21:08,456 INFO L87 Difference]: Start difference. First operand 556 states and 1026 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2022-03-03 18:21:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:08,511 INFO L93 Difference]: Finished difference Result 565 states and 1035 transitions. [2022-03-03 18:21:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:08,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 26 [2022-03-03 18:21:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:08,526 INFO L225 Difference]: With dead ends: 565 [2022-03-03 18:21:08,526 INFO L226 Difference]: Without dead ends: 565 [2022-03-03 18:21:08,526 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 [2022-03-03 18:21:08,527 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:08,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 163 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-03-03 18:21:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2022-03-03 18:21:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 546 states have (on average 1.8919413919413919) internal successors, (1033), 562 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1033 transitions. [2022-03-03 18:21:08,550 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1033 transitions. Word has length 26 [2022-03-03 18:21:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:08,550 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 1033 transitions. [2022-03-03 18:21:08,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2022-03-03 18:21:08,551 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1033 transitions. [2022-03-03 18:21:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-03 18:21:08,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:08,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:08,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:21:08,552 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:08,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash -976068887, now seen corresponding path program 1 times [2022-03-03 18:21:08,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:08,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034182347] [2022-03-03 18:21:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:08,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:08,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034182347] [2022-03-03 18:21:08,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034182347] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:08,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050651930] [2022-03-03 18:21:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:08,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:08,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:08,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:08,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 18:21:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:08,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:08,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 18:21:08,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:08,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050651930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:08,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:08,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:08,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038090985] [2022-03-03 18:21:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:08,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:08,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:08,811 INFO L87 Difference]: Start difference. First operand 563 states and 1033 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 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) [2022-03-03 18:21:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:08,841 INFO L93 Difference]: Finished difference Result 673 states and 1243 transitions. [2022-03-03 18:21:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:08,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 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 36 [2022-03-03 18:21:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:08,846 INFO L225 Difference]: With dead ends: 673 [2022-03-03 18:21:08,846 INFO L226 Difference]: Without dead ends: 673 [2022-03-03 18:21:08,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:08,848 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:08,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 193 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-03-03 18:21:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 569. [2022-03-03 18:21:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 553 states have (on average 1.8860759493670887) internal successors, (1043), 568 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 1043 transitions. [2022-03-03 18:21:08,867 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 1043 transitions. Word has length 36 [2022-03-03 18:21:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:08,867 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 1043 transitions. [2022-03-03 18:21:08,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 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) [2022-03-03 18:21:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 1043 transitions. [2022-03-03 18:21:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-03 18:21:08,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:08,869 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-03-03 18:21:08,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-03 18:21:09,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:09,088 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash -521851416, now seen corresponding path program 1 times [2022-03-03 18:21:09,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:09,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080818438] [2022-03-03 18:21:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:09,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:09,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:09,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080818438] [2022-03-03 18:21:09,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080818438] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:09,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863847051] [2022-03-03 18:21:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:09,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:09,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:09,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:09,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 18:21:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:09,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:09,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-03 18:21:09,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:09,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863847051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:09,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:09,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:09,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242227376] [2022-03-03 18:21:09,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:09,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:09,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:09,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:09,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:09,390 INFO L87 Difference]: Start difference. First operand 569 states and 1043 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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) [2022-03-03 18:21:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:09,403 INFO L93 Difference]: Finished difference Result 568 states and 1042 transitions. [2022-03-03 18:21:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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 36 [2022-03-03 18:21:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:09,406 INFO L225 Difference]: With dead ends: 568 [2022-03-03 18:21:09,406 INFO L226 Difference]: Without dead ends: 568 [2022-03-03 18:21:09,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:09,407 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 1 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:09,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 167 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:09,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-03-03 18:21:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2022-03-03 18:21:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 553 states have (on average 1.8842676311030742) internal successors, (1042), 567 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 1042 transitions. [2022-03-03 18:21:09,422 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 1042 transitions. Word has length 36 [2022-03-03 18:21:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:09,422 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 1042 transitions. [2022-03-03 18:21:09,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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) [2022-03-03 18:21:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 1042 transitions. [2022-03-03 18:21:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-03-03 18:21:09,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:09,424 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-03-03 18:21:09,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:09,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-03 18:21:09,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:09,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:09,641 INFO L85 PathProgramCache]: Analyzing trace with hash 967991590, now seen corresponding path program 1 times [2022-03-03 18:21:09,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:09,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964106275] [2022-03-03 18:21:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:09,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:09,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964106275] [2022-03-03 18:21:09,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964106275] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:09,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935632903] [2022-03-03 18:21:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:09,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:09,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:09,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 18:21:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:09,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:09,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:09,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-03 18:21:09,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:09,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935632903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:09,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:09,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:09,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987865618] [2022-03-03 18:21:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:09,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:09,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:09,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:09,919 INFO L87 Difference]: Start difference. First operand 568 states and 1042 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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) [2022-03-03 18:21:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:09,940 INFO L93 Difference]: Finished difference Result 567 states and 1041 transitions. [2022-03-03 18:21:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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 37 [2022-03-03 18:21:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:09,945 INFO L225 Difference]: With dead ends: 567 [2022-03-03 18:21:09,945 INFO L226 Difference]: Without dead ends: 567 [2022-03-03 18:21:09,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:09,946 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 1 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:09,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 165 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:09,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-03 18:21:09,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-03-03 18:21:09,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 553 states have (on average 1.8824593128390597) internal successors, (1041), 566 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1041 transitions. [2022-03-03 18:21:09,969 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1041 transitions. Word has length 37 [2022-03-03 18:21:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:09,970 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1041 transitions. [2022-03-03 18:21:09,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 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) [2022-03-03 18:21:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1041 transitions. [2022-03-03 18:21:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-03 18:21:09,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:09,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:09,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:10,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:10,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash 268340454, now seen corresponding path program 1 times [2022-03-03 18:21:10,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:10,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397915549] [2022-03-03 18:21:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:10,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:10,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397915549] [2022-03-03 18:21:10,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397915549] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:10,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193107072] [2022-03-03 18:21:10,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:10,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:10,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:10,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:10,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 18:21:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:10,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:10,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:10,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 18:21:10,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:10,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193107072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:10,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:10,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:10,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948689911] [2022-03-03 18:21:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:10,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:10,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:10,413 INFO L87 Difference]: Start difference. First operand 567 states and 1041 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:10,444 INFO L93 Difference]: Finished difference Result 619 states and 1142 transitions. [2022-03-03 18:21:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 [2022-03-03 18:21:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:10,448 INFO L225 Difference]: With dead ends: 619 [2022-03-03 18:21:10,448 INFO L226 Difference]: Without dead ends: 619 [2022-03-03 18:21:10,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:10,453 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 25 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:10,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 179 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-03-03 18:21:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 579. [2022-03-03 18:21:10,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 566 states have (on average 1.8798586572438163) internal successors, (1064), 578 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 1064 transitions. [2022-03-03 18:21:10,480 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 1064 transitions. Word has length 41 [2022-03-03 18:21:10,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:10,480 INFO L470 AbstractCegarLoop]: Abstraction has 579 states and 1064 transitions. [2022-03-03 18:21:10,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 1064 transitions. [2022-03-03 18:21:10,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-03 18:21:10,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:10,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:10,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:10,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:10,688 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:10,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:10,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1859173889, now seen corresponding path program 1 times [2022-03-03 18:21:10,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:10,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902916312] [2022-03-03 18:21:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:10,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:10,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:10,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902916312] [2022-03-03 18:21:10,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902916312] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:10,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694325691] [2022-03-03 18:21:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:10,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:10,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:10,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 18:21:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:10,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:10,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 18:21:10,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:10,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694325691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:10,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:10,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:10,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483514916] [2022-03-03 18:21:10,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:10,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:10,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:10,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:10,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:10,952 INFO L87 Difference]: Start difference. First operand 579 states and 1064 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:10,984 INFO L93 Difference]: Finished difference Result 614 states and 1131 transitions. [2022-03-03 18:21:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:10,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 [2022-03-03 18:21:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:10,990 INFO L225 Difference]: With dead ends: 614 [2022-03-03 18:21:10,990 INFO L226 Difference]: Without dead ends: 614 [2022-03-03 18:21:10,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:10,991 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 20 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:10,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 173 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-03-03 18:21:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 584. [2022-03-03 18:21:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 573 states have (on average 1.8726003490401397) internal successors, (1073), 583 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 1073 transitions. [2022-03-03 18:21:11,009 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 1073 transitions. Word has length 42 [2022-03-03 18:21:11,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:11,009 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 1073 transitions. [2022-03-03 18:21:11,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 1073 transitions. [2022-03-03 18:21:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-03 18:21:11,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:11,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:11,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:11,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:11,212 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1561109911, now seen corresponding path program 1 times [2022-03-03 18:21:11,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:11,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897640504] [2022-03-03 18:21:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:11,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:11,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897640504] [2022-03-03 18:21:11,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897640504] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:11,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093716695] [2022-03-03 18:21:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:11,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:11,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:11,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:11,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 18:21:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:11,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-03 18:21:11,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 18:21:11,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 18:21:11,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093716695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:11,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 18:21:11,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-03-03 18:21:11,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723707936] [2022-03-03 18:21:11,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:11,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:11,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:11,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:11,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:11,398 INFO L87 Difference]: Start difference. First operand 584 states and 1073 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:11,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:11,409 INFO L93 Difference]: Finished difference Result 556 states and 1018 transitions. [2022-03-03 18:21:11,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:11,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 [2022-03-03 18:21:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:11,412 INFO L225 Difference]: With dead ends: 556 [2022-03-03 18:21:11,412 INFO L226 Difference]: Without dead ends: 444 [2022-03-03 18:21:11,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 18:21:11,413 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 29 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:11,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 189 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:11,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-03 18:21:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-03-03 18:21:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 437 states have (on average 1.7986270022883295) internal successors, (786), 443 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 786 transitions. [2022-03-03 18:21:11,424 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 786 transitions. Word has length 45 [2022-03-03 18:21:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:11,424 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 786 transitions. [2022-03-03 18:21:11,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 786 transitions. [2022-03-03 18:21:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-03 18:21:11,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:11,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:11,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:11,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:11,644 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 549388844, now seen corresponding path program 1 times [2022-03-03 18:21:11,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:11,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097073145] [2022-03-03 18:21:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:11,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:11,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:11,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097073145] [2022-03-03 18:21:11,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097073145] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:11,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445687347] [2022-03-03 18:21:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:11,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:11,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:11,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:11,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 18:21:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:11,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 18:21:11,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:11,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:21:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:21:12,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445687347] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:21:12,014 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:21:12,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 18:21:12,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54471895] [2022-03-03 18:21:12,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:21:12,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:21:12,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:21:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:21:12,018 INFO L87 Difference]: Start difference. First operand 444 states and 786 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:12,097 INFO L93 Difference]: Finished difference Result 461 states and 804 transitions. [2022-03-03 18:21:12,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 18:21:12,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 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 46 [2022-03-03 18:21:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:12,099 INFO L225 Difference]: With dead ends: 461 [2022-03-03 18:21:12,100 INFO L226 Difference]: Without dead ends: 461 [2022-03-03 18:21:12,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-03 18:21:12,102 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 51 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:12,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 442 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-03 18:21:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2022-03-03 18:21:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 452 states have (on average 1.7743362831858407) internal successors, (802), 458 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 802 transitions. [2022-03-03 18:21:12,113 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 802 transitions. Word has length 46 [2022-03-03 18:21:12,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:12,114 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 802 transitions. [2022-03-03 18:21:12,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 802 transitions. [2022-03-03 18:21:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-03 18:21:12,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:12,116 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:12,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:12,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:12,337 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:12,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash 18346970, now seen corresponding path program 2 times [2022-03-03 18:21:12,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:12,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737123435] [2022-03-03 18:21:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-03 18:21:12,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:12,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737123435] [2022-03-03 18:21:12,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737123435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:12,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:21:12,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 18:21:12,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116418988] [2022-03-03 18:21:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:12,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 18:21:12,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:12,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 18:21:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:21:12,415 INFO L87 Difference]: Start difference. First operand 459 states and 802 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:12,473 INFO L93 Difference]: Finished difference Result 1097 states and 1903 transitions. [2022-03-03 18:21:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 18:21:12,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 66 [2022-03-03 18:21:12,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:12,479 INFO L225 Difference]: With dead ends: 1097 [2022-03-03 18:21:12,479 INFO L226 Difference]: Without dead ends: 1097 [2022-03-03 18:21:12,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 18:21:12,480 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 227 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:12,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 452 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-03-03 18:21:12,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 548. [2022-03-03 18:21:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 540 states have (on average 1.7351851851851852) internal successors, (937), 547 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 937 transitions. [2022-03-03 18:21:12,498 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 937 transitions. Word has length 66 [2022-03-03 18:21:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:12,498 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 937 transitions. [2022-03-03 18:21:12,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 937 transitions. [2022-03-03 18:21:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-03 18:21:12,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:12,499 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:12,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 18:21:12,499 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -586814751, now seen corresponding path program 1 times [2022-03-03 18:21:12,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:12,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661319187] [2022-03-03 18:21:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-03 18:21:12,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:12,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661319187] [2022-03-03 18:21:12,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661319187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:21:12,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:21:12,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:21:12,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194782251] [2022-03-03 18:21:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:21:12,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:21:12,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:21:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:21:12,536 INFO L87 Difference]: Start difference. First operand 548 states and 937 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:12,555 INFO L93 Difference]: Finished difference Result 524 states and 891 transitions. [2022-03-03 18:21:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:21:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 66 [2022-03-03 18:21:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:12,557 INFO L225 Difference]: With dead ends: 524 [2022-03-03 18:21:12,557 INFO L226 Difference]: Without dead ends: 291 [2022-03-03 18:21:12,558 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 [2022-03-03 18:21:12,558 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 27 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:12,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 177 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-03 18:21:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2022-03-03 18:21:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 283 states have (on average 1.5229681978798586) internal successors, (431), 286 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 431 transitions. [2022-03-03 18:21:12,565 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 431 transitions. Word has length 66 [2022-03-03 18:21:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:12,565 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 431 transitions. [2022-03-03 18:21:12,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 431 transitions. [2022-03-03 18:21:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-03 18:21:12,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:12,566 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:12,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 18:21:12,567 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash -689199882, now seen corresponding path program 1 times [2022-03-03 18:21:12,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:12,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525095587] [2022-03-03 18:21:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:12,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 18:21:12,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:12,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525095587] [2022-03-03 18:21:12,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525095587] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:12,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140306432] [2022-03-03 18:21:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:12,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:12,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:12,628 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:12,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 18:21:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:12,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-03 18:21:12,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 18:21:12,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:21:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-03 18:21:12,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140306432] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:21:12,975 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:21:12,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2022-03-03 18:21:12,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396684776] [2022-03-03 18:21:12,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:21:12,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 18:21:12,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:12,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 18:21:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-03 18:21:12,977 INFO L87 Difference]: Start difference. First operand 287 states and 431 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:13,033 INFO L93 Difference]: Finished difference Result 299 states and 443 transitions. [2022-03-03 18:21:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 18:21:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 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 81 [2022-03-03 18:21:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:13,034 INFO L225 Difference]: With dead ends: 299 [2022-03-03 18:21:13,034 INFO L226 Difference]: Without dead ends: 299 [2022-03-03 18:21:13,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-03-03 18:21:13,035 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 11 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:13,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 389 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-03-03 18:21:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2022-03-03 18:21:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 293 states have (on average 1.5051194539249146) internal successors, (441), 296 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 441 transitions. [2022-03-03 18:21:13,042 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 441 transitions. Word has length 81 [2022-03-03 18:21:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:13,042 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 441 transitions. [2022-03-03 18:21:13,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 441 transitions. [2022-03-03 18:21:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 18:21:13,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:13,044 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:13,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:13,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-03 18:21:13,270 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1197882463, now seen corresponding path program 2 times [2022-03-03 18:21:13,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:13,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913323809] [2022-03-03 18:21:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:13,336 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 18:21:13,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:13,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913323809] [2022-03-03 18:21:13,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913323809] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:13,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306172415] [2022-03-03 18:21:13,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 18:21:13,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:13,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:13,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:13,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-03 18:21:13,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 18:21:13,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 18:21:13,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-03 18:21:13,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 18:21:13,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:21:13,684 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 18:21:13,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306172415] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:21:13,684 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:21:13,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-03-03 18:21:13,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118726580] [2022-03-03 18:21:13,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:21:13,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 18:21:13,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:13,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 18:21:13,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-03-03 18:21:13,686 INFO L87 Difference]: Start difference. First operand 297 states and 441 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:13,795 INFO L93 Difference]: Finished difference Result 345 states and 494 transitions. [2022-03-03 18:21:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 18:21:13,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 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 91 [2022-03-03 18:21:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:13,797 INFO L225 Difference]: With dead ends: 345 [2022-03-03 18:21:13,797 INFO L226 Difference]: Without dead ends: 345 [2022-03-03 18:21:13,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=270, Unknown=0, NotChecked=0, Total=420 [2022-03-03 18:21:13,798 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 86 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:13,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 379 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:21:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-03 18:21:13,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 327. [2022-03-03 18:21:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 323 states have (on average 1.4674922600619196) internal successors, (474), 326 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 474 transitions. [2022-03-03 18:21:13,806 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 474 transitions. Word has length 91 [2022-03-03 18:21:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:13,806 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 474 transitions. [2022-03-03 18:21:13,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 474 transitions. [2022-03-03 18:21:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 18:21:13,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:13,808 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:13,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:14,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-03 18:21:14,032 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:14,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:14,032 INFO L85 PathProgramCache]: Analyzing trace with hash -672920133, now seen corresponding path program 1 times [2022-03-03 18:21:14,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:14,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113471827] [2022-03-03 18:21:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 87 proven. 51 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 18:21:14,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:14,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113471827] [2022-03-03 18:21:14,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113471827] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:14,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067873419] [2022-03-03 18:21:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:14,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:14,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:14,107 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:14,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-03 18:21:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:14,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 18:21:14,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 87 proven. 51 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 18:21:14,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:21:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 87 proven. 51 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 18:21:14,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067873419] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:21:14,558 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:21:14,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-03-03 18:21:14,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257729780] [2022-03-03 18:21:14,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:21:14,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 18:21:14,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 18:21:14,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-03-03 18:21:14,559 INFO L87 Difference]: Start difference. First operand 327 states and 474 transitions. Second operand has 17 states, 17 states have (on average 7.647058823529412) internal successors, (130), 17 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:14,739 INFO L93 Difference]: Finished difference Result 339 states and 486 transitions. [2022-03-03 18:21:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 18:21:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.647058823529412) internal successors, (130), 17 states have internal predecessors, (130), 0 states have call successors, (0), 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 101 [2022-03-03 18:21:14,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:14,745 INFO L225 Difference]: With dead ends: 339 [2022-03-03 18:21:14,745 INFO L226 Difference]: Without dead ends: 339 [2022-03-03 18:21:14,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2022-03-03 18:21:14,746 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 25 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:14,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 634 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:21:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-03 18:21:14,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 336. [2022-03-03 18:21:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.4548192771084338) internal successors, (483), 335 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 483 transitions. [2022-03-03 18:21:14,753 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 483 transitions. Word has length 101 [2022-03-03 18:21:14,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:14,753 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 483 transitions. [2022-03-03 18:21:14,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.647058823529412) internal successors, (130), 17 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:14,753 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 483 transitions. [2022-03-03 18:21:14,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-03 18:21:14,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:14,755 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:14,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:14,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-03 18:21:14,978 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash 508442244, now seen corresponding path program 3 times [2022-03-03 18:21:14,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:14,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145250116] [2022-03-03 18:21:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:14,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:21:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 160 proven. 80 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 18:21:15,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:21:15,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145250116] [2022-03-03 18:21:15,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145250116] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:21:15,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767673148] [2022-03-03 18:21:15,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 18:21:15,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:21:15,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:21:15,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:21:15,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-03 18:21:15,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-03 18:21:15,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 18:21:15,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-03 18:21:15,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:21:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 18 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-03 18:21:15,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:21:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 135 proven. 18 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-03 18:21:15,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767673148] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:21:15,707 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:21:15,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 20 [2022-03-03 18:21:15,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314320017] [2022-03-03 18:21:15,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:21:15,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-03 18:21:15,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:21:15,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-03 18:21:15,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 18:21:15,709 INFO L87 Difference]: Start difference. First operand 336 states and 483 transitions. Second operand has 20 states, 20 states have (on average 6.35) internal successors, (127), 20 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:21:16,029 INFO L93 Difference]: Finished difference Result 361 states and 511 transitions. [2022-03-03 18:21:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 18:21:16,029 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.35) internal successors, (127), 20 states have internal predecessors, (127), 0 states have call successors, (0), 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 121 [2022-03-03 18:21:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:21:16,031 INFO L225 Difference]: With dead ends: 361 [2022-03-03 18:21:16,031 INFO L226 Difference]: Without dead ends: 361 [2022-03-03 18:21:16,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 230 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1042, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 18:21:16,034 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 310 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:21:16,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 711 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:21:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-03-03 18:21:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 346. [2022-03-03 18:21:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 342 states have (on average 1.4473684210526316) internal successors, (495), 345 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 495 transitions. [2022-03-03 18:21:16,042 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 495 transitions. Word has length 121 [2022-03-03 18:21:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:21:16,043 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 495 transitions. [2022-03-03 18:21:16,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.35) internal successors, (127), 20 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:21:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 495 transitions. [2022-03-03 18:21:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-03 18:21:16,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:21:16,044 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:16,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-03 18:21:16,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-03 18:21:16,269 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-03-03 18:21:16,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:21:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1913252312, now seen corresponding path program 1 times [2022-03-03 18:21:16,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:21:16,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228267156] [2022-03-03 18:21:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:21:16,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:21:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:21:16,324 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:21:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:21:16,394 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:21:16,394 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:21:16,395 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-03-03 18:21:16,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-03-03 18:21:16,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-03-03 18:21:16,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-03-03 18:21:16,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-03-03 18:21:16,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 18:21:16,400 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:21:16,405 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:21:16,405 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:21:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:21:16 BasicIcfg [2022-03-03 18:21:16,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:21:16,492 INFO L158 Benchmark]: Toolchain (without parser) took 9980.03ms. Allocated memory was 172.0MB in the beginning and 261.1MB in the end (delta: 89.1MB). Free memory was 122.6MB in the beginning and 184.0MB in the end (delta: -61.4MB). Peak memory consumption was 28.1MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,492 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 140.8MB in the end (delta: 69.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:21:16,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.39ms. Allocated memory is still 172.0MB. Free memory was 122.4MB in the beginning and 135.0MB in the end (delta: -12.6MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.95ms. Allocated memory is still 172.0MB. Free memory was 135.0MB in the beginning and 132.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,493 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 131.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,493 INFO L158 Benchmark]: RCFGBuilder took 400.43ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 119.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,494 INFO L158 Benchmark]: TraceAbstraction took 8809.59ms. Allocated memory was 172.0MB in the beginning and 261.1MB in the end (delta: 89.1MB). Free memory was 118.5MB in the beginning and 184.0MB in the end (delta: -65.5MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2022-03-03 18:21:16,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 140.8MB in the end (delta: 69.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 669.39ms. Allocated memory is still 172.0MB. Free memory was 122.4MB in the beginning and 135.0MB in the end (delta: -12.6MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.95ms. Allocated memory is still 172.0MB. Free memory was 135.0MB in the beginning and 132.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 131.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 400.43ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 119.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 8809.59ms. Allocated memory was 172.0MB in the beginning and 261.1MB in the end (delta: 89.1MB). Free memory was 118.5MB in the beginning and 184.0MB in the end (delta: -65.5MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1009]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; VAL [glob=0] [L988] 0 pthread_mutex_t *p, *q; VAL [glob=0, p={0:0}, q={0:0}] [L996] 0 pthread_t t1, t2; VAL [glob=0, p={0:0}, q={0:0}, t1={2:0}] [L997] 0 int i; VAL [glob=0, p={0:0}, q={0:0}, t1={2:0}] [L998] 0 pthread_mutex_t *a; VAL [glob=0, p={0:0}, q={0:0}, t1={2:0}] [L999] 0 i=0 VAL [glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-2:0}, glob=0, i=0, malloc(sizeof(pthread_mutex_t))={-2:0}, p={0:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-2:0}, glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-2:0}, glob=0, i=1, p={0:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-3:0}, glob=0, i=1, malloc(sizeof(pthread_mutex_t))={-3:0}, p={0:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-3:0}, glob=0, i=1, p={0:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-3:0}, glob=0, i=2, p={0:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-4:0}, glob=0, i=2, malloc(sizeof(pthread_mutex_t))={-4:0}, p={0:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-4:0}, glob=0, i=2, p={0:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-4:0}, glob=0, i=3, p={0:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-5:0}, glob=0, i=3, malloc(sizeof(pthread_mutex_t))={-5:0}, p={0:0}, q={0:0}, t1={2:0}] [L1002] COND TRUE 0 i==3 VAL [a={-5:0}, glob=0, i=3, p={0:0}, q={0:0}, t1={2:0}] [L1003] 0 p = a VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-5:0}, glob=0, i=3, p={-5:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-5:0}, glob=0, i=4, p={-5:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-6:0}, glob=0, i=4, malloc(sizeof(pthread_mutex_t))={-6:0}, p={-5:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-6:0}, glob=0, i=4, p={-5:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-6:0}, glob=0, i=5, p={-5:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-7:0}, glob=0, i=5, malloc(sizeof(pthread_mutex_t))={-7:0}, p={-5:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-7:0}, glob=0, i=5, p={-5:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-7:0}, glob=0, i=6, p={-5:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-8:0}, glob=0, i=6, malloc(sizeof(pthread_mutex_t))={-8:0}, p={-5:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-8:0}, glob=0, i=6, p={-5:0}, q={0:0}, t1={2:0}] [L999] 0 i++ VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-8:0}, glob=0, i=7, p={-5:0}, q={0:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-9:0}, glob=0, i=7, malloc(sizeof(pthread_mutex_t))={-9:0}, p={-5:0}, q={0:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}, t1={2:0}] [L1004] COND TRUE 0 i==7 VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={0:0}, t1={2:0}] [L1005] 0 q = a VAL [a={-9:0}, glob=0, i=7, p={-5:0}, q={-9:0}, t1={2:0}] [L999] 0 i++ VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-9:0}, glob=0, i=8, p={-5:0}, q={-9:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-10:0}, glob=0, i=8, malloc(sizeof(pthread_mutex_t))={-10:0}, p={-5:0}, q={-9:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-10:0}, glob=0, i=8, p={-5:0}, q={-9:0}, t1={2:0}] [L999] 0 i++ VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 VAL [a={-10:0}, glob=0, i=9, p={-5:0}, q={-9:0}, t1={2:0}] [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [a={-11:0}, glob=0, i=9, malloc(sizeof(pthread_mutex_t))={-11:0}, p={-5:0}, q={-9:0}, t1={2:0}] [L1002] COND FALSE 0 !(i==3) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}, t1={2:0}] [L1004] COND FALSE 0 !(i==7) VAL [a={-11:0}, glob=0, i=9, p={-5:0}, q={-9:0}, t1={2:0}] [L999] 0 i++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1={2:0}] [L999] COND FALSE 0 !(i < 10) VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1={2:0}] [L1007] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [a={-11:0}, glob=0, i=10, p={-5:0}, pthread_create(&t1, 0, f, 0)=-1, q={-9:0}, t1={2:0}, x={0:0}] [L991] 1 glob++ VAL [glob=0, p={-5:0}, q={-9:0}, x={0:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-11:0}, glob=0, i=10, p={-5:0}, q={-9:0}, t1={2:0}, x={0:0}, x={0:0}] [L991] 1 glob++ VAL [glob=1, glob++=25, glob++=0, p={-5:0}, q={-9:0}, x={0:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-11:0}, glob=1, glob++=25, glob++=0, i=10, p={-5:0}, q={-9:0}, t1={2:0}, x={0:0}, x={0:0}] Now there is a data race on ~glob~0 between C: glob++ [991] and C: glob++ [1009] - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 992]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1003]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 111 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 16, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 860 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 860 mSDsluCounter, 4502 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3167 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 569 IncrementalHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 1374 mSDtfsCounter, 569 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1236 GetRequests, 1090 SyntacticMatches, 7 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred in iteration=7, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 769 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1684 NumberOfCodeBlocks, 1629 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1947 ConstructedInterpolants, 0 QuantifiedInterpolants, 3273 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1712 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 1572/1942 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-03 18:21:16,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...