/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-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/join_correct.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 05:31:48,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 05:31:48,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 05:31:48,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 05:31:48,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 05:31:48,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 05:31:48,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 05:31:48,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 05:31:48,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 05:31:48,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 05:31:48,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 05:31:48,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 05:31:48,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 05:31:48,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 05:31:48,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 05:31:48,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 05:31:48,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 05:31:48,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 05:31:48,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 05:31:48,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 05:31:48,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 05:31:48,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 05:31:48,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 05:31:48,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 05:31:48,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-11 05:31:48,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-11 05:31:48,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-11 05:31:48,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-11 05:31:48,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-11 05:31:48,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-11 05:31:48,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-11 05:31:48,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-11 05:31:48,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-11 05:31:48,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-11 05:31:48,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-11 05:31:48,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-11 05:31:48,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-11 05:31:48,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-11 05:31:48,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 05:31:48,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 05:31:48,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 05:31:48,209 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-POR-NewStatesSleepPersistent-NoLbe.epf [2022-02-11 05:31:48,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 05:31:48,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 05:31:48,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 05:31:48,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 05:31:48,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 05:31:48,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 05:31:48,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 05:31:48,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 05:31:48,251 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 05:31:48,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 05:31:48,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 05:31:48,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 05:31:48,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 05:31:48,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 05:31:48,254 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2022-02-11 05:31:48,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 05:31:48,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 05:31:48,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 05:31:48,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 05:31:48,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-11 05:31:48,480 INFO L275 PluginConnector]: CDTParser initialized [2022-02-11 05:31:48,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/join_correct.c [2022-02-11 05:31:48,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaadb462b/6f09afa9b5604175b3df1a74555422d2/FLAGab2db1b4f [2022-02-11 05:31:48,847 INFO L306 CDTParser]: Found 1 translation units. [2022-02-11 05:31:48,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/join_correct.c [2022-02-11 05:31:48,848 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-11 05:31:48,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaadb462b/6f09afa9b5604175b3df1a74555422d2/FLAGab2db1b4f [2022-02-11 05:31:49,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaadb462b/6f09afa9b5604175b3df1a74555422d2 [2022-02-11 05:31:49,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 05:31:49,308 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-11 05:31:49,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-11 05:31:49,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-11 05:31:49,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-11 05:31:49,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1782e809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49, skipping insertion in model container [2022-02-11 05:31:49,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-11 05:31:49,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-11 05:31:49,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 05:31:49,446 INFO L203 MainTranslator]: Completed pre-run [2022-02-11 05:31:49,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 05:31:49,460 INFO L208 MainTranslator]: Completed translation [2022-02-11 05:31:49,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49 WrapperNode [2022-02-11 05:31:49,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-11 05:31:49,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 05:31:49,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 05:31:49,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 05:31:49,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,479 INFO L137 Inliner]: procedures = 10, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2022-02-11 05:31:49,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 05:31:49,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 05:31:49,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 05:31:49,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 05:31:49,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 05:31:49,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 05:31:49,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 05:31:49,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 05:31:49,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (1/1) ... [2022-02-11 05:31:49,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 05:31:49,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:49,518 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) [2022-02-11 05:31:49,522 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 [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-02-11 05:31:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 05:31:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-11 05:31:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-11 05:31:49,545 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 05:31:49,609 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 05:31:49,610 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 05:31:49,733 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 05:31:49,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 05:31:49,748 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-11 05:31:49,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 05:31:49 BoogieIcfgContainer [2022-02-11 05:31:49,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 05:31:49,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 05:31:49,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 05:31:49,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 05:31:49,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.02 05:31:49" (1/3) ... [2022-02-11 05:31:49,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188037bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 05:31:49, skipping insertion in model container [2022-02-11 05:31:49,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 05:31:49" (2/3) ... [2022-02-11 05:31:49,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188037bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 05:31:49, skipping insertion in model container [2022-02-11 05:31:49,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 05:31:49" (3/3) ... [2022-02-11 05:31:49,755 INFO L112 eAbstractionObserver]: Analyzing ICFG join_correct.c [2022-02-11 05:31:49,758 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 05:31:49,758 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 05:31:49,758 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 05:31:49,758 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 05:31:49,791 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,791 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,791 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,791 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,792 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,793 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,793 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,793 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,793 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,796 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,796 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,796 WARN L322 ript$VariableManager]: TermVariable incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,797 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:49,808 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-11 05:31:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:31:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:49,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:31:49,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-11 05:31:49,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 05:31:49,874 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=PARTIAL_ORDER_FA, 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 [2022-02-11 05:31:49,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 05:31:49,967 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:49,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1186475315, now seen corresponding path program 1 times [2022-02-11 05:31:49,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:49,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530291576] [2022-02-11 05:31:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:49,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 05:31:50,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:50,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530291576] [2022-02-11 05:31:50,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530291576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:31:50,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:31:50,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:31:50,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700795858] [2022-02-11 05:31:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:31:50,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:31:50,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:31:50,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:31:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:31:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,122 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:31:50,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 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) [2022-02-11 05:31:50,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-11 05:31:50,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1315558034, now seen corresponding path program 1 times [2022-02-11 05:31:50,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:50,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164093836] [2022-02-11 05:31:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:50,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:50,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:50,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164093836] [2022-02-11 05:31:50,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164093836] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:31:50,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269471277] [2022-02-11 05:31:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:50,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:50,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:50,248 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) [2022-02-11 05:31:50,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-11 05:31:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:50,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 05:31:50,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:31:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:50,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:31:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:50,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269471277] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:31:50,555 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:31:50,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-02-11 05:31:50,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302923402] [2022-02-11 05:31:50,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:31:50,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-11 05:31:50,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:31:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-11 05:31:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-11 05:31:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,560 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:31:50,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2022-02-11 05:31:50,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:31:50,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-11 05:31:50,835 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,SelfDestructingSolverStorable1 [2022-02-11 05:31:50,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:50,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1813678536, now seen corresponding path program 1 times [2022-02-11 05:31:50,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:50,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430563454] [2022-02-11 05:31:50,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:31:50,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 05:31:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 05:31:50,906 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 05:31:50,906 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 05:31:50,907 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-11 05:31:50,908 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 2 remaining) [2022-02-11 05:31:50,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-11 05:31:50,913 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-11 05:31:50,914 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-11 05:31:50,914 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,920 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,921 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,922 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,923 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,923 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,923 WARN L322 ript$VariableManager]: TermVariable incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,923 WARN L322 ript$VariableManager]: TermVariable |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,923 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,924 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,924 WARN L322 ript$VariableManager]: TermVariable incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,924 WARN L322 ript$VariableManager]: TermVariable |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 05:31:50,925 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-11 05:31:50,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 05:31:50,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:50,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 05:31:50,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-02-11 05:31:50,930 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 05:31:50,931 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=PARTIAL_ORDER_FA, 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 [2022-02-11 05:31:50,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 05:31:50,971 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1294658478, now seen corresponding path program 1 times [2022-02-11 05:31:50,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:50,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705667315] [2022-02-11 05:31:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:50,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 05:31:50,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:50,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705667315] [2022-02-11 05:31:50,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705667315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:31:50,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 05:31:50,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 05:31:50,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926890992] [2022-02-11 05:31:50,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:31:50,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 05:31:50,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:31:50,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 05:31:50,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 05:31:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,993 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:31:50,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 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) [2022-02-11 05:31:50,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:50,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-11 05:31:50,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1165575759, now seen corresponding path program 1 times [2022-02-11 05:31:50,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:50,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056906813] [2022-02-11 05:31:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:50,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:51,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:51,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056906813] [2022-02-11 05:31:51,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056906813] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:31:51,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272098830] [2022-02-11 05:31:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:51,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:51,036 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) [2022-02-11 05:31:51,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-11 05:31:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:51,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-11 05:31:51,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:31:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:51,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:31:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:51,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272098830] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:31:51,188 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:31:51,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-02-11 05:31:51,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346715145] [2022-02-11 05:31:51,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:31:51,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-11 05:31:51,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:31:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-11 05:31:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-11 05:31:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:51,190 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:31:51,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2022-02-11 05:31:51,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:51,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:31:51,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-11 05:31:51,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:51,465 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:51,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1699484665, now seen corresponding path program 1 times [2022-02-11 05:31:51,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:51,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614733169] [2022-02-11 05:31:51,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-11 05:31:51,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:51,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614733169] [2022-02-11 05:31:51,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614733169] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:31:51,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319979576] [2022-02-11 05:31:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:51,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:51,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:51,648 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) [2022-02-11 05:31:51,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-11 05:31:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:51,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-11 05:31:51,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:31:51,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 05:31:51,920 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 05:31:51,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-11 05:31:51,944 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-11 05:31:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-11 05:31:51,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:31:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-11 05:31:52,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319979576] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:31:52,088 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:31:52,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2022-02-11 05:31:52,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090277980] [2022-02-11 05:31:52,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:31:52,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-11 05:31:52,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:31:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-11 05:31:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-11 05:31:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:52,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:31:52,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 05:31:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:31:52,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:52,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:31:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:31:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-11 05:31:52,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-11 05:31:52,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:52,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:31:52,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:31:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1728113816, now seen corresponding path program 1 times [2022-02-11 05:31:52,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:31:52,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206703352] [2022-02-11 05:31:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:52,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:31:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:52,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:31:52,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206703352] [2022-02-11 05:31:52,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206703352] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:31:52,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978205023] [2022-02-11 05:31:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:31:52,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:31:52,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:31:52,755 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) [2022-02-11 05:31:52,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-11 05:31:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:31:52,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-11 05:31:52,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:31:52,867 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-11 05:31:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 05:31:53,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2022-02-11 05:31:53,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-02-11 05:31:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:31:53,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 05:32:05,783 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 92 [2022-02-11 05:32:05,793 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 526 treesize of output 514 [2022-02-11 05:32:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:32:06,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978205023] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 05:32:06,269 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 05:32:06,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 27 [2022-02-11 05:32:06,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490756625] [2022-02-11 05:32:06,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 05:32:06,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-11 05:32:06,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:32:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-11 05:32:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=604, Unknown=4, NotChecked=0, Total=702 [2022-02-11 05:32:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,272 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:32:06,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3703703703703702) internal successors, (91), 27 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 05:32:06,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:32:06,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-11 05:32:06,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:32:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-11 05:32:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-11 05:32:06,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-11 05:32:06,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:32:06,761 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 05:32:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 05:32:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash 854374073, now seen corresponding path program 1 times [2022-02-11 05:32:06,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 05:32:06,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134607185] [2022-02-11 05:32:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:32:06,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 05:32:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:32:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:32:06,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 05:32:06,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134607185] [2022-02-11 05:32:06,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134607185] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 05:32:06,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129725527] [2022-02-11 05:32:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 05:32:06,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:32:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 05:32:06,832 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) [2022-02-11 05:32:06,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-11 05:32:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 05:32:06,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-11 05:32:06,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 05:32:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 05:32:06,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-11 05:32:06,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129725527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 05:32:06,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-11 05:32:06,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2022-02-11 05:32:06,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752436391] [2022-02-11 05:32:06,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 05:32:06,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-11 05:32:06,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 05:32:06,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-11 05:32:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-11 05:32:06,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,936 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 05:32:06,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 05:32:06,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:06,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:32:06,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-11 05:32:06,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-02-11 05:32:06,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 05:32:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-11 05:32:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 05:32:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-11 05:32:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 05:32:07,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-11 05:32:07,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 05:32:07,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-11 05:32:07,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 05:32:07,259 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-11 05:32:07,260 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-02-11 05:32:07,260 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 05:32:07,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 05:32:07 BasicIcfg [2022-02-11 05:32:07,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 05:32:07,264 INFO L158 Benchmark]: Toolchain (without parser) took 17955.82ms. Allocated memory was 184.5MB in the beginning and 269.5MB in the end (delta: 84.9MB). Free memory was 126.8MB in the beginning and 173.9MB in the end (delta: -47.1MB). Peak memory consumption was 38.9MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,265 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 05:32:07,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.11ms. Allocated memory was 184.5MB in the beginning and 269.5MB in the end (delta: 84.9MB). Free memory was 126.6MB in the beginning and 238.6MB in the end (delta: -112.1MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.25ms. Allocated memory is still 269.5MB. Free memory was 238.6MB in the beginning and 237.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,266 INFO L158 Benchmark]: Boogie Preprocessor took 12.34ms. Allocated memory is still 269.5MB. Free memory was 237.1MB in the beginning and 236.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,266 INFO L158 Benchmark]: RCFGBuilder took 256.65ms. Allocated memory is still 269.5MB. Free memory was 236.0MB in the beginning and 225.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,266 INFO L158 Benchmark]: TraceAbstraction took 17512.77ms. Allocated memory is still 269.5MB. Free memory was 224.5MB in the beginning and 173.9MB in the end (delta: 50.6MB). Peak memory consumption was 51.7MB. Max. memory is 8.0GB. [2022-02-11 05:32:07,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 152.11ms. Allocated memory was 184.5MB in the beginning and 269.5MB in the end (delta: 84.9MB). Free memory was 126.6MB in the beginning and 238.6MB in the end (delta: -112.1MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.25ms. Allocated memory is still 269.5MB. Free memory was 238.6MB in the beginning and 237.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.34ms. Allocated memory is still 269.5MB. Free memory was 237.1MB in the beginning and 236.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 256.65ms. Allocated memory is still 269.5MB. Free memory was 236.0MB in the beginning and 225.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 17512.77ms. Allocated memory is still 269.5MB. Free memory was 224.5MB in the beginning and 173.9MB in the end (delta: 50.6MB). Peak memory consumption was 51.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 139, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 19, negative conditional: 18, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 12, positive unconditional: 108, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, positive: 120, positive conditional: 5, positive unconditional: 115, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 5, positive unconditional: 115, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 74, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 74, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 47, positive conditional: 5, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 74, unknown conditional: 0, unknown unconditional: 74] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 7, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 38, Number of trivial persistent sets: 35, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 87, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 139, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 19, negative conditional: 18, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 34, positive unconditional: 86, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 12, positive unconditional: 108, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, positive: 120, positive conditional: 5, positive unconditional: 115, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 5, positive unconditional: 115, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 74, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 74, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 47, positive conditional: 5, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 74, unknown conditional: 0, unknown unconditional: 74] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 7, Maximal queried relation: 0, Independence queries for same thread: 18 - 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 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1087, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 76, negative conditional: 56, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1033, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1033, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 425, positive unconditional: 586, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 169, positive unconditional: 842, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 169, positive unconditional: 842, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 509, positive: 488, positive conditional: 6, positive unconditional: 482, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 509, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 5, positive conditional: 1, positive unconditional: 4, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 28, positive conditional: 2, positive unconditional: 26, negative: 36, negative conditional: 3, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1034, positive: 523, positive conditional: 163, positive unconditional: 360, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 509, unknown conditional: 7, unknown unconditional: 502] , Statistics on independence cache: Total cache size (in pairs): 509, Positive cache size: 488, Positive conditional cache size: 6, Positive unconditional cache size: 482, Negative cache size: 21, Negative conditional cache size: 1, Negative unconditional cache size: 20, Eliminated conditions: 256, Maximal queried relation: 1, Independence queries for same thread: 54 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 269, Number of trivial persistent sets: 246, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 564, positive: 544, positive conditional: 0, positive unconditional: 544, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1087, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 76, negative conditional: 56, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1033, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1033, positive: 1011, positive conditional: 467, positive unconditional: 544, negative: 22, negative conditional: 2, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 425, positive unconditional: 586, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 169, positive unconditional: 842, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1034, positive: 1011, positive conditional: 169, positive unconditional: 842, negative: 23, negative conditional: 1, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 509, positive: 488, positive conditional: 6, positive unconditional: 482, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 509, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 5, positive conditional: 1, positive unconditional: 4, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 28, positive conditional: 2, positive unconditional: 26, negative: 36, negative conditional: 3, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1034, positive: 523, positive conditional: 163, positive unconditional: 360, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 509, unknown conditional: 7, unknown unconditional: 502] , Statistics on independence cache: Total cache size (in pairs): 509, Positive cache size: 488, Positive conditional cache size: 6, Positive unconditional cache size: 482, Negative cache size: 21, Negative conditional cache size: 1, Negative unconditional cache size: 20, Eliminated conditions: 256, Maximal queried relation: 1, Independence queries for same thread: 54 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 2 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 2 thread instances CFG has 4 procedures, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 444 ConstructedInterpolants, 10 QuantifiedInterpolants, 4157 SizeOfPredicates, 33 NumberOfNonLiveVariables, 501 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 49/116 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-11 05:32:07,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-02-11 05:32:07,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-11 05:32:07,705 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...