/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 16:23:36,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 16:23:36,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 16:23:36,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 16:23:36,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 16:23:36,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 16:23:36,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 16:23:36,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2022-02-15 16:23:36,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 16:23:36,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 16:23:36,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 16:23:36,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 16:23:36,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 16:23:36,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 16:23:36,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 16:23:36,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 16:23:36,156 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 16:23:36,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 16:23:36,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 16:23:36,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 16:23:36,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 16:23:36,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 16:23:36,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 16:23:36,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 16:23:36,160 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-15 16:23:36,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 16:23:36,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 16:23:36,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 16:23:36,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 16:23:36,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 16:23:36,366 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 16:23:36,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-02-15 16:23:36,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fe68128/aa3d66fc1b1a42ca8617c97731240887/FLAGfdfb7a699 [2022-02-15 16:23:36,800 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 16:23:36,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-02-15 16:23:36,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fe68128/aa3d66fc1b1a42ca8617c97731240887/FLAGfdfb7a699 [2022-02-15 16:23:36,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fe68128/aa3d66fc1b1a42ca8617c97731240887 [2022-02-15 16:23:36,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 16:23:36,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 16:23:36,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 16:23:36,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 16:23:36,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 16:23:36,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:23:36" (1/1) ... [2022-02-15 16:23:36,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c638a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:36, skipping insertion in model container [2022-02-15 16:23:36,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:23:36" (1/1) ... [2022-02-15 16:23:36,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 16:23:36,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 16:23:37,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-02-15 16:23:37,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 16:23:37,154 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 16:23:37,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-02-15 16:23:37,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 16:23:37,245 INFO L208 MainTranslator]: Completed translation [2022-02-15 16:23:37,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37 WrapperNode [2022-02-15 16:23:37,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 16:23:37,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 16:23:37,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 16:23:37,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 16:23:37,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,286 INFO L137 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 97 [2022-02-15 16:23:37,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 16:23:37,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 16:23:37,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 16:23:37,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 16:23:37,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 16:23:37,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 16:23:37,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 16:23:37,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 16:23:37,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (1/1) ... [2022-02-15 16:23:37,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 16:23:37,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:37,341 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) [2022-02-15 16:23:37,353 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 [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-02-15 16:23:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 16:23:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 16:23:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 16:23:37,367 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 16:23:37,490 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 16:23:37,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 16:23:37,639 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 16:23:37,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 16:23:37,644 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-15 16:23:37,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:23:37 BoogieIcfgContainer [2022-02-15 16:23:37,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 16:23:37,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 16:23:37,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 16:23:37,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 16:23:37,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:23:36" (1/3) ... [2022-02-15 16:23:37,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39077ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:23:37, skipping insertion in model container [2022-02-15 16:23:37,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:23:37" (2/3) ... [2022-02-15 16:23:37,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39077ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:23:37, skipping insertion in model container [2022-02-15 16:23:37,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:23:37" (3/3) ... [2022-02-15 16:23:37,651 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2022-02-15 16:23:37,655 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 16:23:37,655 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 16:23:37,655 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-15 16:23:37,655 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 16:23:37,691 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,692 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,692 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,692 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,694 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,695 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,696 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,697 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,697 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,697 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,697 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,697 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,698 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,699 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,700 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,701 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,701 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,701 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,702 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,703 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,704 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,704 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,704 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,707 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,707 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,707 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,707 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,707 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,708 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 16:23:37,710 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-15 16:23:37,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-15 16:23:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:37,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-15 16:23:37,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-15 16:23:37,771 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 16:23:37,776 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 [2022-02-15 16:23:37,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-15 16:23:37,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1167593153, now seen corresponding path program 1 times [2022-02-15 16:23:37,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:37,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927525771] [2022-02-15 16:23:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:37,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 16:23:37,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:37,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927525771] [2022-02-15 16:23:37,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927525771] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:37,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:37,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 16:23:37,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884028925] [2022-02-15 16:23:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:37,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-15 16:23:37,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-15 16:23:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-15 16:23:37,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:37,975 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:37,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:37,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:37,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 16:23:37,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:37,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 17040545, now seen corresponding path program 1 times [2022-02-15 16:23:37,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:37,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868776019] [2022-02-15 16:23:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:37,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 16:23:38,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:38,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868776019] [2022-02-15 16:23:38,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868776019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:38,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:38,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 16:23:38,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679948834] [2022-02-15 16:23:38,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:38,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 16:23:38,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 16:23:38,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 16:23:38,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,107 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:38,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 16:23:38,145 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:38,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash 934127715, now seen corresponding path program 1 times [2022-02-15 16:23:38,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:38,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18862274] [2022-02-15 16:23:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:38,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 16:23:38,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:38,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18862274] [2022-02-15 16:23:38,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18862274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:38,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:38,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 16:23:38,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357615207] [2022-02-15 16:23:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:38,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 16:23:38,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:38,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 16:23:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 16:23:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,262 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:38,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:38,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:38,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 16:23:38,382 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:38,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:38,382 INFO L85 PathProgramCache]: Analyzing trace with hash 588159651, now seen corresponding path program 1 times [2022-02-15 16:23:38,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:38,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807658314] [2022-02-15 16:23:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:38,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-15 16:23:38,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:38,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807658314] [2022-02-15 16:23:38,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807658314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:38,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:38,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 16:23:38,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612947401] [2022-02-15 16:23:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:38,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 16:23:38,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 16:23:38,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 16:23:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,456 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:38,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:38,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:38,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 16:23:38,532 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1911241270, now seen corresponding path program 1 times [2022-02-15 16:23:38,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:38,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225617172] [2022-02-15 16:23:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:38,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-15 16:23:38,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:38,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225617172] [2022-02-15 16:23:38,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225617172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:38,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:38,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 16:23:38,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005867654] [2022-02-15 16:23:38,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:38,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 16:23:38,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 16:23:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 16:23:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:38,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:38,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:38,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:38,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 16:23:38,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 16:23:38,752 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:38,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1505246821, now seen corresponding path program 1 times [2022-02-15 16:23:38,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:38,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200108708] [2022-02-15 16:23:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:38,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 16:23:38,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:38,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200108708] [2022-02-15 16:23:38,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200108708] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 16:23:38,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18954434] [2022-02-15 16:23:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:38,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:38,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:38,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 16:23:38,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 16:23:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:38,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-15 16:23:38,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 16:23:39,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 16:23:39,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 16:23:39,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18954434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:39,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 16:23:39,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-02-15 16:23:39,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731300483] [2022-02-15 16:23:39,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:39,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 16:23:39,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:39,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 16:23:39,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-15 16:23:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,122 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:39,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-15 16:23:39,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:39,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 16:23:39,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-15 16:23:39,549 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1083316143, now seen corresponding path program 2 times [2022-02-15 16:23:39,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:39,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399017654] [2022-02-15 16:23:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:39,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-02-15 16:23:39,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:39,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399017654] [2022-02-15 16:23:39,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399017654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:39,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 16:23:39,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 16:23:39,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453645938] [2022-02-15 16:23:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:39,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 16:23:39,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 16:23:39,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 16:23:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:39,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:39,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:39,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 16:23:39,713 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:39,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1681146598, now seen corresponding path program 1 times [2022-02-15 16:23:39,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:39,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079056581] [2022-02-15 16:23:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:39,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:39,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:39,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079056581] [2022-02-15 16:23:39,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079056581] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 16:23:39,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159212531] [2022-02-15 16:23:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:39,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:39,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 16:23:39,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 16:23:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:39,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-15 16:23:39,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 16:23:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:40,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 16:23:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:40,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159212531] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 16:23:40,287 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 16:23:40,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-15 16:23:40,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332898199] [2022-02-15 16:23:40,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 16:23:40,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 16:23:40,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:40,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 16:23:40,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-15 16:23:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:40,289 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:40,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:40,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:40,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:40,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 16:23:40,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-15 16:23:40,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:40,565 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2144649690, now seen corresponding path program 2 times [2022-02-15 16:23:40,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:40,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649706736] [2022-02-15 16:23:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:40,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 95 proven. 78 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:40,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:40,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649706736] [2022-02-15 16:23:40,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649706736] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 16:23:40,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448730936] [2022-02-15 16:23:40,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-15 16:23:40,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:40,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 16:23:40,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 16:23:40,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-15 16:23:40,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 16:23:40,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-15 16:23:40,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 16:23:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 95 proven. 78 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:40,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 16:23:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 95 proven. 78 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:41,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448730936] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 16:23:41,277 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 16:23:41,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-15 16:23:41,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026252955] [2022-02-15 16:23:41,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 16:23:41,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-15 16:23:41,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-15 16:23:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-15 16:23:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:41,300 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:41,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.666666666666666) internal successors, (264), 18 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-15 16:23:41,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 16:23:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 16:23:41,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-15 16:23:41,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:41,680 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-02-15 16:23:41,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 16:23:41,681 INFO L85 PathProgramCache]: Analyzing trace with hash -85334874, now seen corresponding path program 3 times [2022-02-15 16:23:41,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 16:23:41,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018288639] [2022-02-15 16:23:41,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 16:23:41,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 16:23:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 16:23:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 211 proven. 448 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-15 16:23:41,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 16:23:41,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018288639] [2022-02-15 16:23:41,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018288639] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 16:23:41,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975606448] [2022-02-15 16:23:41,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-15 16:23:41,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 16:23:41,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 16:23:41,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 16:23:41,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 16:23:41,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-15 16:23:41,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 16:23:41,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-15 16:23:41,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 16:23:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2022-02-15 16:23:42,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 16:23:42,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975606448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 16:23:42,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 16:23:42,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2022-02-15 16:23:42,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220115719] [2022-02-15 16:23:42,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 16:23:42,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 16:23:42,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 16:23:42,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 16:23:42,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-02-15 16:23:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:42,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-15 16:23:42,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 16:23:42,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:42,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:42,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:42,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-15 16:23:42,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 16:23:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 16:23:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 16:23:42,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2022-02-15 16:23:42,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-02-15 16:23:42,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-02-15 16:23:42,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-02-15 16:23:42,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-02-15 16:23:42,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-15 16:23:42,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-15 16:23:42,875 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2022-02-15 16:23:42,878 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 16:23:42,878 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 16:23:42,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 04:23:42 BasicIcfg [2022-02-15 16:23:42,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 16:23:42,880 INFO L158 Benchmark]: Toolchain (without parser) took 6035.21ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 196.0MB in the beginning and 188.6MB in the end (delta: 7.4MB). Peak memory consumption was 167.1MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,880 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 222.3MB. Free memory is still 184.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 16:23:42,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.97ms. Allocated memory is still 222.3MB. Free memory was 195.8MB in the beginning and 185.4MB in the end (delta: 10.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 222.3MB. Free memory was 185.4MB in the beginning and 183.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,881 INFO L158 Benchmark]: Boogie Preprocessor took 22.53ms. Allocated memory is still 222.3MB. Free memory was 183.3MB in the beginning and 181.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,881 INFO L158 Benchmark]: RCFGBuilder took 334.45ms. Allocated memory is still 222.3MB. Free memory was 181.8MB in the beginning and 168.3MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,881 INFO L158 Benchmark]: TraceAbstraction took 5232.83ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 167.9MB in the beginning and 188.6MB in the end (delta: -20.7MB). Peak memory consumption was 139.3MB. Max. memory is 8.0GB. [2022-02-15 16:23:42,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 222.3MB. Free memory is still 184.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 399.97ms. Allocated memory is still 222.3MB. Free memory was 195.8MB in the beginning and 185.4MB in the end (delta: 10.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 222.3MB. Free memory was 185.4MB in the beginning and 183.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.53ms. Allocated memory is still 222.3MB. Free memory was 183.3MB in the beginning and 181.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 334.45ms. Allocated memory is still 222.3MB. Free memory was 181.8MB in the beginning and 168.3MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5232.83ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 167.9MB in the beginning and 188.6MB in the end (delta: -20.7MB). Peak memory consumption was 139.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7950, positive: 6156, positive conditional: 6156, positive unconditional: 0, negative: 1794, negative conditional: 1794, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6167, positive: 6156, positive conditional: 6156, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6167, positive: 6156, positive conditional: 6156, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6231, positive: 6156, positive conditional: 6075, positive unconditional: 81, negative: 75, negative conditional: 64, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6231, positive: 6156, positive conditional: 1739, positive unconditional: 4417, negative: 75, negative conditional: 20, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6231, positive: 6156, positive conditional: 1739, positive unconditional: 4417, negative: 75, negative conditional: 20, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1181, positive: 1159, positive conditional: 421, positive unconditional: 738, negative: 22, negative conditional: 15, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1181, positive: 1152, positive conditional: 0, positive unconditional: 1152, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 22, negative conditional: 15, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 32, positive conditional: 29, positive unconditional: 3, negative: 42, negative conditional: 33, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6231, positive: 4997, positive conditional: 1318, positive unconditional: 3679, negative: 53, negative conditional: 5, negative unconditional: 48, unknown: 1181, unknown conditional: 436, unknown unconditional: 745] , Statistics on independence cache: Total cache size (in pairs): 1181, Positive cache size: 1159, Positive conditional cache size: 421, Positive unconditional cache size: 738, Negative cache size: 22, Negative conditional cache size: 15, Negative unconditional cache size: 7, Eliminated conditions: 4380, Maximal queried relation: 5, Independence queries for same thread: 1783 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 151 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 1.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1873 NumberOfCodeBlocks, 1724 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2177 ConstructedInterpolants, 0 QuantifiedInterpolants, 3830 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1066 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 1580/2284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-15 16:23:42,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-15 16:23:43,126 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...