/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 01:47:20,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 01:47:20,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 01:47:20,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 01:47:20,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 01:47:20,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 01:47:20,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 01:47:20,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 01:47:20,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 01:47:20,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 01:47:20,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 01:47:20,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 01:47:20,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 01:47:20,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 01:47:20,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 01:47:20,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 01:47:20,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 01:47:20,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 01:47:20,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 01:47:20,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 01:47:20,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 01:47:20,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 01:47:20,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 01:47:20,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 01:47:20,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 01:47:20,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 01:47:20,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 01:47:20,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 01:47:20,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 01:47:20,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 01:47:20,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 01:47:20,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 01:47:20,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 01:47:20,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 01:47:20,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 01:47:20,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 01:47:20,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 01:47:20,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 01:47:20,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 01:47:20,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 01:47:20,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 01:47:20,710 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 01:47:20,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 01:47:20,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 01:47:20,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 01:47:20,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 01:47:20,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 01:47:20,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 01:47:20,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 01:47:20,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 01:47:20,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 01:47:20,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 01:47:20,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 01:47:20,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:47:20,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 01:47:20,727 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 01:47:20,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 01:47:20,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 01:47:20,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 01:47:20,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 01:47:20,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 01:47:20,955 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 01:47:20,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2022-02-10 01:47:21,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800721d8c/3f8428fef2374413ab996eb022f92c6c/FLAGba7f0fa24 [2022-02-10 01:47:21,436 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 01:47:21,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2022-02-10 01:47:21,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800721d8c/3f8428fef2374413ab996eb022f92c6c/FLAGba7f0fa24 [2022-02-10 01:47:21,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800721d8c/3f8428fef2374413ab996eb022f92c6c [2022-02-10 01:47:21,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 01:47:21,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 01:47:21,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 01:47:21,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 01:47:21,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 01:47:21,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:47:21" (1/1) ... [2022-02-10 01:47:21,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0c2593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:21, skipping insertion in model container [2022-02-10 01:47:21,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:47:21" (1/1) ... [2022-02-10 01:47:21,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 01:47:21,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 01:47:22,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2022-02-10 01:47:22,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:47:22,163 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 01:47:22,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2022-02-10 01:47:22,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:47:22,235 INFO L208 MainTranslator]: Completed translation [2022-02-10 01:47:22,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22 WrapperNode [2022-02-10 01:47:22,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 01:47:22,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 01:47:22,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 01:47:22,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 01:47:22,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,265 INFO L137 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-02-10 01:47:22,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 01:47:22,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 01:47:22,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 01:47:22,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 01:47:22,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 01:47:22,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 01:47:22,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 01:47:22,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 01:47:22,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (1/1) ... [2022-02-10 01:47:22,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:47:22,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:47:22,333 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) [2022-02-10 01:47:22,336 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 [2022-02-10 01:47:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-02-10 01:47:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-02-10 01:47:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 01:47:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 01:47:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 01:47:22,360 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 01:47:22,434 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 01:47:22,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 01:47:22,548 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 01:47:22,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 01:47:22,554 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-10 01:47:22,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:47:22 BoogieIcfgContainer [2022-02-10 01:47:22,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 01:47:22,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 01:47:22,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 01:47:22,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 01:47:22,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 01:47:21" (1/3) ... [2022-02-10 01:47:22,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbb3d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:47:22, skipping insertion in model container [2022-02-10 01:47:22,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:47:22" (2/3) ... [2022-02-10 01:47:22,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbb3d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:47:22, skipping insertion in model container [2022-02-10 01:47:22,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:47:22" (3/3) ... [2022-02-10 01:47:22,561 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2022-02-10 01:47:22,565 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 01:47:22,565 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 01:47:22,565 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 01:47:22,565 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 01:47:22,589 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,590 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,591 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,592 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,592 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,592 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,592 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,593 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,593 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,593 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,593 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,593 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,594 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,594 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,594 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,594 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,594 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,595 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,596 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,596 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,596 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,596 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,596 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,597 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,597 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,597 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,597 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,600 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,600 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,600 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,600 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,600 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,602 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,602 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,602 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,602 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,603 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,603 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:22,619 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 01:47:22,658 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:47:22,663 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 01:47:22,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 01:47:22,682 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 80 transitions, 170 flow [2022-02-10 01:47:22,772 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1716 states, 1712 states have (on average 2.6804906542056073) internal successors, (4589), 1715 states have internal predecessors, (4589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:47:23,936 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 39051 transitions and produced 15096 states. [2022-02-10 01:47:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 15096 states, 12222 states have (on average 1.2373588610702013) internal successors, (15123), 15095 states have internal predecessors, (15123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:47:24,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-10 01:47:24,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:47:24,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:47:24,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 01:47:24,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:47:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1926868283, now seen corresponding path program 1 times [2022-02-10 01:47:24,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:47:24,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104279090] [2022-02-10 01:47:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:47:24,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:47:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:47:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:47:24,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:47:24,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104279090] [2022-02-10 01:47:24,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104279090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:47:24,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:47:24,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 01:47:24,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654340787] [2022-02-10 01:47:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:47:24,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 01:47:24,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:47:24,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 01:47:24,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-02-10 01:47:24,653 INFO L87 Difference]: Start difference. First operand has 15096 states, 12222 states have (on average 1.2373588610702013) internal successors, (15123), 15095 states have internal predecessors, (15123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 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) [2022-02-10 01:47:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:47:24,842 INFO L93 Difference]: Finished difference Result 3802 states and 3808 transitions. [2022-02-10 01:47:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 01:47:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-02-10 01:47:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:47:24,858 INFO L225 Difference]: With dead ends: 3802 [2022-02-10 01:47:24,858 INFO L226 Difference]: Without dead ends: 787 [2022-02-10 01:47:24,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-10 01:47:24,862 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 166 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:47:24,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 355 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:47:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-02-10 01:47:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 501. [2022-02-10 01:47:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 470 states have (on average 1.172340425531915) internal successors, (551), 500 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:47:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 551 transitions. [2022-02-10 01:47:24,910 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 551 transitions. Word has length 41 [2022-02-10 01:47:24,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:47:24,910 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 551 transitions. [2022-02-10 01:47:24,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 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) [2022-02-10 01:47:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 551 transitions. [2022-02-10 01:47:24,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 01:47:24,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:47:24,912 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:47:24,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 01:47:24,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 01:47:24,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:47:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2080092778, now seen corresponding path program 1 times [2022-02-10 01:47:24,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:47:24,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948332319] [2022-02-10 01:47:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:47:24,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:47:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:47:24,939 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 01:47:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:47:24,971 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 01:47:24,971 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 01:47:24,972 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 4 remaining) [2022-02-10 01:47:24,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-02-10 01:47:24,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 4 remaining) [2022-02-10 01:47:24,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-02-10 01:47:24,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 01:47:24,975 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-10 01:47:24,976 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 01:47:24,976 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 01:47:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,988 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,988 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,989 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,991 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,997 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,998 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:24,999 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,000 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,001 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,001 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:47:25,001 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 01:47:25,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:47:25,003 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 01:47:25,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 01:47:25,005 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 107 places, 101 transitions, 226 flow [2022-02-10 01:47:25,351 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12160 states, 12155 states have (on average 3.5264500205676677) internal successors, (42864), 12159 states have internal predecessors, (42864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:47:57,121 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1135593 transitions and produced 344456 states. [2022-02-10 01:48:02,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 344456 states, 259280 states have (on average 1.3426990126504166) internal successors, (348135), 344455 states have internal predecessors, (348135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:48:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-10 01:48:02,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:48:02,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:48:02,313 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-10 01:48:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:48:02,315 INFO L85 PathProgramCache]: Analyzing trace with hash 51703260, now seen corresponding path program 1 times [2022-02-10 01:48:02,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:48:02,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174216414] [2022-02-10 01:48:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:48:02,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:48:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:48:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:48:02,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:48:02,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174216414] [2022-02-10 01:48:02,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174216414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:48:02,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:48:02,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 01:48:02,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382856674] [2022-02-10 01:48:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:48:02,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 01:48:02,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:48:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 01:48:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-02-10 01:48:08,055 INFO L87 Difference]: Start difference. First operand has 344456 states, 259280 states have (on average 1.3426990126504166) internal successors, (348135), 344455 states have internal predecessors, (348135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 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) [2022-02-10 01:48:11,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:48:11,765 INFO L93 Difference]: Finished difference Result 89235 states and 90127 transitions. [2022-02-10 01:48:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 01:48:11,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-02-10 01:48:11,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:48:11,824 INFO L225 Difference]: With dead ends: 89235 [2022-02-10 01:48:11,824 INFO L226 Difference]: Without dead ends: 15096 [2022-02-10 01:48:11,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-10 01:48:11,825 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 229 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 01:48:11,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 413 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 01:48:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15096 states. [2022-02-10 01:48:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15096 to 4379. [2022-02-10 01:48:11,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4379 states, 4143 states have (on average 1.3405744629495535) internal successors, (5554), 4378 states have internal predecessors, (5554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:48:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4379 states to 4379 states and 5554 transitions. [2022-02-10 01:48:11,989 INFO L78 Accepts]: Start accepts. Automaton has 4379 states and 5554 transitions. Word has length 41 [2022-02-10 01:48:11,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:48:11,991 INFO L470 AbstractCegarLoop]: Abstraction has 4379 states and 5554 transitions. [2022-02-10 01:48:11,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 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) [2022-02-10 01:48:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4379 states and 5554 transitions. [2022-02-10 01:48:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-10 01:48:11,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:48:11,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:48:11,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 01:48:11,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-10 01:48:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:48:11,996 INFO L85 PathProgramCache]: Analyzing trace with hash -828093652, now seen corresponding path program 1 times [2022-02-10 01:48:11,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:48:11,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684661745] [2022-02-10 01:48:11,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:48:11,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:48:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:48:12,026 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 01:48:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:48:12,054 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 01:48:12,055 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 01:48:12,055 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-10 01:48:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-02-10 01:48:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-02-10 01:48:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 5 remaining) [2022-02-10 01:48:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-02-10 01:48:12,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 01:48:12,057 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-10 01:48:12,060 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-02-10 01:48:12,060 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 01:48:12,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 01:48:12 BasicIcfg [2022-02-10 01:48:12,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 01:48:12,138 INFO L158 Benchmark]: Toolchain (without parser) took 50341.53ms. Allocated memory was 188.7MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 128.7MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-02-10 01:48:12,138 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 01:48:12,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.06ms. Allocated memory was 188.7MB in the beginning and 278.9MB in the end (delta: 90.2MB). Free memory was 128.5MB in the beginning and 242.7MB in the end (delta: -114.2MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2022-02-10 01:48:12,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.82ms. Allocated memory is still 278.9MB. Free memory was 242.7MB in the beginning and 241.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 01:48:12,139 INFO L158 Benchmark]: Boogie Preprocessor took 15.49ms. Allocated memory is still 278.9MB. Free memory was 241.1MB in the beginning and 239.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 01:48:12,139 INFO L158 Benchmark]: RCFGBuilder took 273.79ms. Allocated memory is still 278.9MB. Free memory was 239.6MB in the beginning and 226.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-10 01:48:12,139 INFO L158 Benchmark]: TraceAbstraction took 49581.06ms. Allocated memory was 278.9MB in the beginning and 7.4GB in the end (delta: 7.1GB). Free memory was 225.9MB in the beginning and 4.6GB in the end (delta: -4.4GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-02-10 01:48:12,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 437.06ms. Allocated memory was 188.7MB in the beginning and 278.9MB in the end (delta: 90.2MB). Free memory was 128.5MB in the beginning and 242.7MB in the end (delta: -114.2MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.82ms. Allocated memory is still 278.9MB. Free memory was 242.7MB in the beginning and 241.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.49ms. Allocated memory is still 278.9MB. Free memory was 241.1MB in the beginning and 239.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 273.79ms. Allocated memory is still 278.9MB. Free memory was 239.6MB in the beginning and 226.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 49581.06ms. Allocated memory was 278.9MB in the beginning and 7.4GB in the end (delta: 7.1GB). Free memory was 225.9MB in the beginning and 4.6GB in the end (delta: -4.4GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L711] 0 int i; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L712] 0 x = 0 VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [\old(argc)=49, __VERIFIER_nondet_int()=1, argc=49, argv={51:50}, argv={51:50}, n=1, t1={5:0}, t2={3:0}, x=0] [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=1, x=0] [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, n=1, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L716] 0 i = 0 VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L716] COND TRUE 0 i < n VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L700] CALL 1 __VERIFIER_assert(x < n) [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=0, n=1, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, n=1, t=0, x=1] [L690] 1 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, n=1, t=0, x=1] - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, PartialOrderReductionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 108 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15096occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 286 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 119 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 47.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 5.2s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 32.1s, PartialOrderReductionTime: 31.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 413 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 299 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 123 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344456occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 10717 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-10 01:48:12,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...