/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 15:57:30,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 15:57:30,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 15:57:30,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 15:57:30,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 15:57:30,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 15:57:30,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 15:57:30,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 15:57:30,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 15:57:30,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 15:57:30,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 15:57:30,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 15:57:30,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 15:57:30,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 15:57:30,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 15:57:30,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 15:57:30,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 15:57:30,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 15:57:30,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 15:57:30,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 15:57:30,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 15:57:30,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 15:57:30,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 15:57:30,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 15:57:30,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 15:57:30,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 15:57:30,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 15:57:30,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 15:57:30,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 15:57:30,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 15:57:30,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 15:57:30,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 15:57:30,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 15:57:30,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 15:57:30,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 15:57:30,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 15:57:30,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 15:57:30,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 15:57:30,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 15:57:30,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 15:57:30,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 15:57:30,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 15:57:30,239 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 15:57:30,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 15:57:30,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 15:57:30,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 15:57:30,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 15:57:30,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 15:57:30,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 15:57:30,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 15:57:30,247 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 15:57:30,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 15:57:30,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 15:57:30,249 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 15:57:30,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 15:57:30,250 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 15:57:30,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 15:57:30,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 15:57:30,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 15:57:30,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 15:57:30,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 15:57:30,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 15:57:30,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 15:57:30,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 15:57:30,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 15:57:30,257 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 15:57:30,257 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 15:57:30,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 15:57:30,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 15:57:30,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 15:57:30,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 15:57:30,258 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 15:57:30,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 15:57:30,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 15:57:30,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 15:57:30,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 15:57:30,506 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 15:57:30,508 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 15:57:30,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2023-05-04 15:57:30,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d015d896f/37bb46b0952e46f98997f902344ca237/FLAG5d52754d3 [2023-05-04 15:57:30,932 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 15:57:30,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2023-05-04 15:57:30,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d015d896f/37bb46b0952e46f98997f902344ca237/FLAG5d52754d3 [2023-05-04 15:57:31,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d015d896f/37bb46b0952e46f98997f902344ca237 [2023-05-04 15:57:31,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 15:57:31,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 15:57:31,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 15:57:31,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 15:57:31,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 15:57:31,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df3e4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31, skipping insertion in model container [2023-05-04 15:57:31,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 15:57:31,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 15:57:31,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2023-05-04 15:57:31,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 15:57:31,546 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 15:57:31,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2023-05-04 15:57:31,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 15:57:31,580 INFO L208 MainTranslator]: Completed translation [2023-05-04 15:57:31,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31 WrapperNode [2023-05-04 15:57:31,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 15:57:31,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 15:57:31,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 15:57:31,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 15:57:31,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,641 INFO L138 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 154 [2023-05-04 15:57:31,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 15:57:31,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 15:57:31,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 15:57:31,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 15:57:31,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 15:57:31,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 15:57:31,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 15:57:31,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 15:57:31,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (1/1) ... [2023-05-04 15:57:31,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 15:57:31,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:31,707 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) [2023-05-04 15:57:31,712 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 [2023-05-04 15:57:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 15:57:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 15:57:31,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 15:57:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 15:57:31,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 15:57:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 15:57:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 15:57:31,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 15:57:31,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 15:57:31,737 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 15:57:31,820 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 15:57:31,821 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 15:57:32,115 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 15:57:32,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 15:57:32,235 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 15:57:32,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 03:57:32 BoogieIcfgContainer [2023-05-04 15:57:32,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 15:57:32,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 15:57:32,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 15:57:32,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 15:57:32,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 03:57:31" (1/3) ... [2023-05-04 15:57:32,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785842ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 03:57:32, skipping insertion in model container [2023-05-04 15:57:32,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 03:57:31" (2/3) ... [2023-05-04 15:57:32,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785842ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 03:57:32, skipping insertion in model container [2023-05-04 15:57:32,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 03:57:32" (3/3) ... [2023-05-04 15:57:32,254 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2023-05-04 15:57:32,262 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 15:57:32,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 15:57:32,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 15:57:32,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 15:57:32,318 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 15:57:32,377 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 15:57:32,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 15:57:32,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:32,385 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) [2023-05-04 15:57:32,392 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 [2023-05-04 15:57:32,424 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 15:57:32,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 15:57:32,460 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72cc30a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 15:57:32,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-04 15:57:32,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:32,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1649523216, now seen corresponding path program 1 times [2023-05-04 15:57:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:32,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511359238] [2023-05-04 15:57:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:32,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:32,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:32,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511359238] [2023-05-04 15:57:32,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511359238] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 15:57:32,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 15:57:32,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 15:57:32,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575114250] [2023-05-04 15:57:32,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 15:57:32,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 15:57:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 15:57:32,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 15:57:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:32,988 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:32,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:32,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 15:57:33,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:33,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:33,026 INFO L85 PathProgramCache]: Analyzing trace with hash 733642119, now seen corresponding path program 1 times [2023-05-04 15:57:33,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:33,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987881281] [2023-05-04 15:57:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:33,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:33,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:33,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987881281] [2023-05-04 15:57:33,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987881281] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 15:57:33,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 15:57:33,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 15:57:33,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630693716] [2023-05-04 15:57:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 15:57:33,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 15:57:33,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 15:57:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 15:57:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,410 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:33,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:33,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:33,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 15:57:33,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:33,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2056626320, now seen corresponding path program 1 times [2023-05-04 15:57:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:33,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387477382] [2023-05-04 15:57:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 15:57:34,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:34,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387477382] [2023-05-04 15:57:34,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387477382] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 15:57:34,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 15:57:34,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-05-04 15:57:34,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210943506] [2023-05-04 15:57:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 15:57:34,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 15:57:34,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 15:57:34,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-05-04 15:57:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,179 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:34,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:34,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:34,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:34,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 15:57:34,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash 877308184, now seen corresponding path program 1 times [2023-05-04 15:57:34,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:34,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869076214] [2023-05-04 15:57:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:34,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 15:57:34,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:34,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869076214] [2023-05-04 15:57:34,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869076214] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 15:57:34,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 15:57:34,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 15:57:34,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199583594] [2023-05-04 15:57:34,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 15:57:34,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 15:57:34,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:34,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 15:57:34,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 15:57:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,604 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:34,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:34,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 15:57:34,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:34,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1447853707, now seen corresponding path program 1 times [2023-05-04 15:57:34,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:34,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910931600] [2023-05-04 15:57:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:34,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:34,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:34,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910931600] [2023-05-04 15:57:34,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910931600] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:34,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383344757] [2023-05-04 15:57:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:34,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:34,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:34,986 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) [2023-05-04 15:57:35,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 15:57:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:35,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-04 15:57:35,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:35,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:35,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383344757] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:35,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:35,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-05-04 15:57:35,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063408414] [2023-05-04 15:57:35,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:35,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-04 15:57:35,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:35,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-04 15:57:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-05-04 15:57:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:35,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:35,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 19 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:35,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:35,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:35,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:35,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:35,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:35,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 15:57:36,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:36,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash -728932610, now seen corresponding path program 2 times [2023-05-04 15:57:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:36,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094304729] [2023-05-04 15:57:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:37,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:37,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094304729] [2023-05-04 15:57:37,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094304729] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:37,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911536396] [2023-05-04 15:57:37,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 15:57:37,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:37,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:37,600 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) [2023-05-04 15:57:37,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 15:57:37,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 15:57:37,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:57:37,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 39 conjunts are in the unsatisfiable core [2023-05-04 15:57:37,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:38,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 15:57:38,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-05-04 15:57:38,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-05-04 15:57:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:38,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:39,124 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:57:39,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2023-05-04 15:57:39,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-05-04 15:57:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:40,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911536396] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:40,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:40,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 59 [2023-05-04 15:57:40,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735610890] [2023-05-04 15:57:40,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:40,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-05-04 15:57:40,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:40,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-05-04 15:57:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=3157, Unknown=0, NotChecked=0, Total=3422 [2023-05-04 15:57:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:40,659 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:40,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 4.8474576271186445) internal successors, (286), 59 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:40,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:40,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:40,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:40,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:40,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:40,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:44,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 15:57:44,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:44,238 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:44,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1939669853, now seen corresponding path program 1 times [2023-05-04 15:57:44,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:44,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838450285] [2023-05-04 15:57:44,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:44,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:46,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838450285] [2023-05-04 15:57:46,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838450285] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756053963] [2023-05-04 15:57:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:46,861 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) [2023-05-04 15:57:46,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 15:57:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:46,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 66 conjunts are in the unsatisfiable core [2023-05-04 15:57:46,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:46,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-05-04 15:57:47,262 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 15:57:47,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-05-04 15:57:48,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-05-04 15:57:48,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2023-05-04 15:57:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:48,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:49,203 WARN L833 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q_back~0)) (not (< c_~q_back~0 c_~n~0)) (< (+ |c_thread1Thread1of1ForFork1_#t~post1#1| 1) c_~N~0) (let ((.cse0 (+ (* c_~q_front~0 4) c_~q~0.offset))) (and (forall ((v_ArrVal_131 (Array Int Int))) (<= c_~N~0 (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse0)))) (forall ((v_ArrVal_131 (Array Int Int))) (<= (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse0)) c_~N~0))))) is different from false [2023-05-04 15:57:49,231 WARN L833 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q_back~0)) (not (< c_~q_back~0 c_~n~0)) (let ((.cse0 (+ (* c_~q_front~0 4) c_~q~0.offset))) (and (forall ((v_ArrVal_131 (Array Int Int))) (<= c_~N~0 (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse0)))) (forall ((v_ArrVal_131 (Array Int Int))) (<= (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse0)) c_~N~0)))) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0)) is different from false [2023-05-04 15:57:49,260 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:57:49,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 70 [2023-05-04 15:57:49,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2023-05-04 15:57:49,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2023-05-04 15:57:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:57:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756053963] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:51,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:51,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 33] total 87 [2023-05-04 15:57:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975367239] [2023-05-04 15:57:51,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:51,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2023-05-04 15:57:51,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2023-05-04 15:57:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=484, Invalid=6661, Unknown=3, NotChecked=334, Total=7482 [2023-05-04 15:57:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:51,343 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:51,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.67816091954023) internal successors, (320), 87 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:51,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:54,363 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (not (<= 0 c_~q_back~0))) (.cse1 (not (< c_~q_back~0 c_~n~0))) (.cse3 (+ (* c_~q_front~0 4) c_~q~0.offset))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~#t2~0#1.base|) 1) (or .cse0 .cse1 (< |c_thread1Thread1of1ForFork1_~i~0#1| c_~N~0) (let ((.cse2 (+ c_~s~0 (select (select |c_#memory_int| c_~q~0.base) .cse3)))) (and (<= c_~N~0 .cse2) (<= .cse2 c_~N~0)))) (= c_~s~0 0) (or .cse0 .cse1 (and (forall ((v_ArrVal_131 (Array Int Int))) (<= c_~N~0 (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse3)))) (forall ((v_ArrVal_131 (Array Int Int))) (<= (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_131) c_~q~0.base) .cse3)) c_~N~0))) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0)))) is different from false [2023-05-04 15:57:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 15:57:54,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 15:57:54,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:54,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash 660939234, now seen corresponding path program 2 times [2023-05-04 15:57:54,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:54,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172410626] [2023-05-04 15:57:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:54,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-05-04 15:57:54,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:54,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172410626] [2023-05-04 15:57:54,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172410626] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:54,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634563401] [2023-05-04 15:57:54,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 15:57:54,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:54,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:54,969 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) [2023-05-04 15:57:55,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 15:57:55,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 15:57:55,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:57:55,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 15:57:55,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:55,180 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-05-04 15:57:55,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:55,458 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-05-04 15:57:55,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634563401] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:55,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:55,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 11 [2023-05-04 15:57:55,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081677097] [2023-05-04 15:57:55,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:55,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-04 15:57:55,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-04 15:57:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-05-04 15:57:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:55,461 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:55,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-05-04 15:57:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:57:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:57:55,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 15:57:56,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:56,006 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:56,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1021844978, now seen corresponding path program 3 times [2023-05-04 15:57:56,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:56,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927108363] [2023-05-04 15:57:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:56,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 28 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 15:57:56,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927108363] [2023-05-04 15:57:56,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927108363] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754675883] [2023-05-04 15:57:56,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 15:57:56,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:56,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:56,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:57:56,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 15:57:56,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-05-04 15:57:56,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:57:56,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-04 15:57:56,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 15:57:56,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 9 proven. 89 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 15:57:57,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754675883] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:57,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:57,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 46 [2023-05-04 15:57:57,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515135799] [2023-05-04 15:57:57,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:57,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-05-04 15:57:57,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:57,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-05-04 15:57:57,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1723, Unknown=0, NotChecked=0, Total=2070 [2023-05-04 15:57:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:57,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:57,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.130434782608695) internal successors, (282), 46 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:57,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:57,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:57:57,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:57:57,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:57:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:57:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:57:57,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 15:57:58,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:58,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:57:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:57:58,152 INFO L85 PathProgramCache]: Analyzing trace with hash -722719991, now seen corresponding path program 4 times [2023-05-04 15:57:58,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:57:58,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675084819] [2023-05-04 15:57:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:57:58,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:57:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:57:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 47 proven. 84 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 15:57:58,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:57:58,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675084819] [2023-05-04 15:57:58,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675084819] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:57:58,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354924882] [2023-05-04 15:57:58,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 15:57:58,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:57:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:57:58,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:57:58,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 15:57:58,767 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 15:57:58,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:57:58,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-04 15:57:58,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:57:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 56 proven. 75 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 15:57:59,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:57:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 31 proven. 100 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 15:57:59,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354924882] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:57:59,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:57:59,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 55 [2023-05-04 15:57:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171232615] [2023-05-04 15:57:59,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:57:59,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-05-04 15:57:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:57:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-05-04 15:57:59,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=2489, Unknown=0, NotChecked=0, Total=2970 [2023-05-04 15:57:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:59,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:57:59,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 6.109090909090909) internal successors, (336), 55 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:57:59,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:00,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:00,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 15:58:00,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:58:00,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:58:00,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:58:00,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1259698670, now seen corresponding path program 5 times [2023-05-04 15:58:00,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:58:00,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321592379] [2023-05-04 15:58:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:58:00,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:58:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:58:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 27 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:58:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:58:02,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321592379] [2023-05-04 15:58:02,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321592379] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:58:02,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649467366] [2023-05-04 15:58:02,970 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 15:58:02,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:58:02,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:58:02,972 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:58:02,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 15:58:03,094 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-05-04 15:58:03,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:58:03,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 18 conjunts are in the unsatisfiable core [2023-05-04 15:58:03,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:58:03,421 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2023-05-04 15:58:03,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2023-05-04 15:58:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-05-04 15:58:03,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:58:03,642 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-05-04 15:58:03,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2023-05-04 15:58:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 33 proven. 13 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-05-04 15:58:03,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649467366] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:58:03,950 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:58:03,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 7, 7] total 42 [2023-05-04 15:58:03,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486453174] [2023-05-04 15:58:03,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:58:03,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-05-04 15:58:03,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:58:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-05-04 15:58:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1568, Unknown=0, NotChecked=0, Total=1722 [2023-05-04 15:58:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:03,952 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:58:03,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.904761904761905) internal successors, (332), 42 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:03,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-05-04 15:58:06,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 15:58:07,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-05-04 15:58:07,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:58:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:58:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash 454326636, now seen corresponding path program 6 times [2023-05-04 15:58:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:58:07,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204272738] [2023-05-04 15:58:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:58:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:58:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:58:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 59 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:58:09,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:58:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204272738] [2023-05-04 15:58:09,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204272738] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:58:09,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398919150] [2023-05-04 15:58:09,133 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 15:58:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:58:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:58:09,137 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:58:09,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 15:58:09,437 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-05-04 15:58:09,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:58:09,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 26 conjunts are in the unsatisfiable core [2023-05-04 15:58:09,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:58:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 48 proven. 22 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-05-04 15:58:09,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:58:10,192 INFO L356 Elim1Store]: treesize reduction 22, result has 40.5 percent of original size [2023-05-04 15:58:10,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 27 [2023-05-04 15:58:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 42 proven. 40 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-05-04 15:58:10,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398919150] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:58:10,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:58:10,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 7, 8] total 43 [2023-05-04 15:58:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776598597] [2023-05-04 15:58:10,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:58:10,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-05-04 15:58:10,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:58:10,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-05-04 15:58:10,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2023-05-04 15:58:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:10,481 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:58:10,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:58:10,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-05-04 15:58:10,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 15:58:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-04 15:58:12,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 15:58:12,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:58:12,510 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:58:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:58:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1395639355, now seen corresponding path program 7 times [2023-05-04 15:58:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:58:12,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175167380] [2023-05-04 15:58:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:58:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:58:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:58:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 1 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:58:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:58:24,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175167380] [2023-05-04 15:58:24,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175167380] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:58:24,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019266652] [2023-05-04 15:58:24,965 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-04 15:58:24,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:58:24,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:58:24,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:58:24,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 15:58:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:58:25,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 136 conjunts are in the unsatisfiable core [2023-05-04 15:58:25,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:58:27,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 15:58:27,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-05-04 15:58:30,029 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:58:30,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 22 [2023-05-04 15:58:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:58:30,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:58:34,316 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse17 (+ 3 c_~q_back~0))) (or (let ((.cse15 (* c_~q_front~0 4)) (.cse16 (* 4 c_~q_back~0))) (let ((.cse2 (+ c_~q~0.offset .cse16)) (.cse5 (+ .cse15 c_~q~0.offset 12)) (.cse4 (+ c_~q~0.offset .cse16 4)) (.cse7 (+ c_~q~0.offset .cse16 8)) (.cse8 (+ .cse15 c_~q~0.offset)) (.cse9 (+ .cse15 c_~q~0.offset 8)) (.cse10 (+ .cse15 c_~q~0.offset 4))) (and (forall ((v_ArrVal_388 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_388) c_~q~0.base))) (let ((.cse0 (select .cse1 .cse10)) (.cse3 (select .cse1 .cse9)) (.cse6 (select .cse1 .cse8))) (or (= .cse0 0) (not (= (select .cse1 .cse2) 1)) (= .cse3 0) (not (= (select .cse1 .cse4) 1)) (< (+ c_~s~0 .cse0 (select .cse1 .cse5) .cse6 .cse3) (+ |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (not (= (select .cse1 .cse7) 1)) (= .cse6 0))))) (forall ((v_ArrVal_388 (Array Int Int))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_388) c_~q~0.base))) (let ((.cse11 (select .cse12 .cse10)) (.cse13 (select .cse12 .cse9)) (.cse14 (select .cse12 .cse8))) (or (= .cse11 0) (not (= (select .cse12 .cse2) 1)) (= .cse13 0) (< (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|) (+ c_~s~0 .cse11 (select .cse12 .cse5) .cse14 .cse13)) (not (= (select .cse12 .cse4) 1)) (not (= (select .cse12 .cse7) 1)) (= .cse14 0)))))))) (not (<= 0 .cse17)) (not (< .cse17 c_~n~0)))) is different from false [2023-05-04 15:58:34,360 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 3 c_~q_back~0))) (or (not (<= 0 .cse0)) (let ((.cse16 (* c_~q_front~0 4)) (.cse17 (* 4 c_~q_back~0))) (let ((.cse3 (+ c_~q~0.offset .cse17)) (.cse5 (+ c_~q~0.offset .cse17 4)) (.cse8 (+ c_~q~0.offset .cse17 8)) (.cse6 (+ .cse16 c_~q~0.offset 12)) (.cse10 (+ .cse16 c_~q~0.offset 8)) (.cse9 (+ .cse16 c_~q~0.offset)) (.cse11 (+ .cse16 c_~q~0.offset 4))) (and (forall ((v_ArrVal_388 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_388) c_~q~0.base))) (let ((.cse1 (select .cse2 .cse11)) (.cse4 (select .cse2 .cse10)) (.cse7 (select .cse2 .cse9))) (or (= .cse1 0) (not (= (select .cse2 .cse3) 1)) (= .cse4 0) (not (= (select .cse2 .cse5) 1)) (< (+ c_~s~0 .cse1 (select .cse2 .cse6) .cse7 .cse4) (+ 5 |c_thread1Thread1of1ForFork1_#t~post1#1|)) (not (= (select .cse2 .cse8) 1)) (= .cse7 0))))) (forall ((v_ArrVal_388 (Array Int Int))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_388) c_~q~0.base))) (let ((.cse12 (select .cse13 .cse11)) (.cse15 (select .cse13 .cse9)) (.cse14 (select .cse13 .cse10))) (or (= .cse12 0) (not (= (select .cse13 .cse3) 1)) (= .cse14 0) (not (= (select .cse13 .cse5) 1)) (not (= (select .cse13 .cse8) 1)) (= .cse15 0) (< (+ 3 |c_thread1Thread1of1ForFork1_#t~post1#1|) (+ c_~s~0 .cse12 (select .cse13 .cse6) .cse15 .cse14))))))))) (not (< .cse0 c_~n~0)))) is different from false [2023-05-04 15:58:34,942 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:58:34,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 584 treesize of output 616 [2023-05-04 15:58:35,032 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:58:35,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 395 treesize of output 490 [2023-05-04 15:58:35,124 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:58:35,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 327 treesize of output 422 [2023-05-04 15:58:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-05-04 15:58:58,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019266652] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 15:58:58,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 15:58:58,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 61, 61] total 174 [2023-05-04 15:58:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059584426] [2023-05-04 15:58:58,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 15:58:58,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 174 states [2023-05-04 15:58:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 15:58:58,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2023-05-04 15:58:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1359, Invalid=28052, Unknown=9, NotChecked=682, Total=30102 [2023-05-04 15:58:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:58,613 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 15:58:58,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 174 states, 174 states have (on average 2.9827586206896552) internal successors, (519), 174 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-04 15:58:58,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:59:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 15:59:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 15:59:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-04 15:59:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-05-04 15:59:19,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 15:59:19,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-05-04 15:59:19,229 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 15:59:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 15:59:19,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1157598229, now seen corresponding path program 8 times [2023-05-04 15:59:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 15:59:19,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208602701] [2023-05-04 15:59:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 15:59:19,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 15:59:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 15:59:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 4 proven. 372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:59:33,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 15:59:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208602701] [2023-05-04 15:59:33,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208602701] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 15:59:33,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348034530] [2023-05-04 15:59:33,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 15:59:33,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 15:59:33,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 15:59:33,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 15:59:33,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 15:59:34,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 15:59:34,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 15:59:34,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 164 conjunts are in the unsatisfiable core [2023-05-04 15:59:34,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 15:59:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 15:59:36,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-05-04 15:59:39,743 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 15:59:39,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 26 [2023-05-04 15:59:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 15:59:40,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 15:59:46,295 WARN L833 $PredicateComparison]: unable to prove that (or (< c_~q_back~0 (+ c_~q_front~0 1)) (let ((.cse20 (* 4 c_~q_back~0)) (.cse19 (* c_~q_front~0 4))) (let ((.cse4 (+ .cse19 c_~q~0.offset 12)) (.cse6 (+ c_~q~0.offset .cse20 8)) (.cse7 (+ c_~q~0.offset .cse20)) (.cse8 (+ c_~q~0.offset .cse20 4)) (.cse9 (+ c_~q~0.offset .cse20 12)) (.cse10 (+ .cse19 c_~q~0.offset)) (.cse11 (+ .cse19 c_~q~0.offset 8)) (.cse12 (+ .cse19 c_~q~0.offset 16)) (.cse13 (+ .cse19 c_~q~0.offset 4))) (and (forall ((v_ArrVal_445 (Array Int Int))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_445) c_~q~0.base))) (let ((.cse0 (select .cse3 .cse13)) (.cse1 (select .cse3 .cse12)) (.cse2 (select .cse3 .cse11)) (.cse5 (select .cse3 .cse10))) (or (< (+ 3 |c_thread1Thread1of1ForFork1_~i~0#1|) (+ c_~s~0 .cse0 .cse1 .cse2 (select .cse3 .cse4) .cse5)) (= .cse0 0) (not (= (select .cse3 .cse6) 1)) (= .cse1 0) (= .cse2 0) (not (= (select .cse3 .cse7) 1)) (not (= (select .cse3 .cse8) 1)) (not (= (select .cse3 .cse9) 1)) (= .cse5 0))))) (forall ((v_ArrVal_445 (Array Int Int))) (let ((.cse17 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_445) c_~q~0.base))) (let ((.cse14 (select .cse17 .cse13)) (.cse15 (select .cse17 .cse12)) (.cse16 (select .cse17 .cse11)) (.cse18 (select .cse17 .cse10))) (or (< (+ c_~s~0 .cse14 .cse15 .cse16 (select .cse17 .cse4) .cse18) (+ 5 |c_thread1Thread1of1ForFork1_~i~0#1|)) (= .cse14 0) (not (= (select .cse17 .cse6) 1)) (= .cse15 0) (= .cse16 0) (not (= (select .cse17 .cse7) 1)) (not (= (select .cse17 .cse8) 1)) (not (= (select .cse17 .cse9) 1)) (= .cse18 0)))))))) (not (< (+ 4 c_~q_back~0) c_~n~0)) (< (+ c_~q_front~0 5) 0)) is different from false [2023-05-04 15:59:47,426 INFO L356 Elim1Store]: treesize reduction 140, result has 58.9 percent of original size [2023-05-04 15:59:47,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 750 treesize of output 712 [2023-05-04 15:59:47,574 INFO L356 Elim1Store]: treesize reduction 140, result has 48.7 percent of original size [2023-05-04 15:59:47,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 507 treesize of output 551 [2023-05-04 15:59:47,695 INFO L356 Elim1Store]: treesize reduction 140, result has 48.7 percent of original size [2023-05-04 15:59:47,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 418 treesize of output 462 [2023-05-04 16:00:05,662 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:00:05,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348034530] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 16:00:05,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 16:00:05,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 199 [2023-05-04 16:00:05,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490657674] [2023-05-04 16:00:05,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 16:00:05,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2023-05-04 16:00:05,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:00:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2023-05-04 16:00:05,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3030, Invalid=35977, Unknown=3, NotChecked=392, Total=39402 [2023-05-04 16:00:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:00:05,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:00:05,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 2.849246231155779) internal successors, (567), 199 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2023-05-04 16:00:05,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-04 16:00:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-05-04 16:00:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-05-04 16:00:32,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 16:00:32,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-05-04 16:00:32,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 16:00:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:00:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash -547125307, now seen corresponding path program 9 times [2023-05-04 16:00:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:00:32,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429824441] [2023-05-04 16:00:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:00:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:00:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:01:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 16 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:01:14,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:01:14,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429824441] [2023-05-04 16:01:14,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429824441] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 16:01:14,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214313392] [2023-05-04 16:01:14,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 16:01:14,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:01:14,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:01:14,074 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 16:01:14,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-05-04 16:01:14,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-05-04 16:01:14,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 16:01:14,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 130 conjunts are in the unsatisfiable core [2023-05-04 16:01:14,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:01:15,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 16:01:15,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-05-04 16:01:18,762 INFO L356 Elim1Store]: treesize reduction 137, result has 8.1 percent of original size [2023-05-04 16:01:18,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 134 treesize of output 42 [2023-05-04 16:01:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-05-04 16:01:19,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:01:33,106 INFO L356 Elim1Store]: treesize reduction 140, result has 85.4 percent of original size [2023-05-04 16:01:33,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 642 treesize of output 1258 [2023-05-04 16:01:33,625 INFO L356 Elim1Store]: treesize reduction 140, result has 73.7 percent of original size [2023-05-04 16:01:33,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 437 treesize of output 756 [2023-05-04 16:01:34,191 INFO L356 Elim1Store]: treesize reduction 140, result has 73.7 percent of original size [2023-05-04 16:01:34,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 363 treesize of output 682 Received shutdown request... [2023-05-04 16:10:39,799 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:10:39,800 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:10:39,801 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:10:39,806 WARN L249 SmtUtils]: Removed 2 from assertion stack [2023-05-04 16:10:39,808 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-05-04 16:10:39,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-05-04 16:10:40,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 16:10:40,009 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 225 with TraceHistMax 10,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 8ms.. [2023-05-04 16:10:40,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-04 16:10:40,010 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-04 16:10:40,013 INFO L444 BasicCegarLoop]: Path program histogram: [9, 2, 1, 1, 1, 1] [2023-05-04 16:10:40,015 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 16:10:40,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 16:10:40,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 04:10:40 BasicIcfg [2023-05-04 16:10:40,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 16:10:40,017 INFO L158 Benchmark]: Toolchain (without parser) took 788657.90ms. Allocated memory was 184.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 127.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-05-04 16:10:40,018 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 16:10:40,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.67ms. Allocated memory is still 184.5MB. Free memory was 127.0MB in the beginning and 157.4MB in the end (delta: -30.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-05-04 16:10:40,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.54ms. Allocated memory is still 184.5MB. Free memory was 157.4MB in the beginning and 155.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 16:10:40,018 INFO L158 Benchmark]: Boogie Preprocessor took 27.38ms. Allocated memory is still 184.5MB. Free memory was 155.4MB in the beginning and 153.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 16:10:40,018 INFO L158 Benchmark]: RCFGBuilder took 566.96ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 129.7MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-05-04 16:10:40,019 INFO L158 Benchmark]: TraceAbstraction took 787777.56ms. Allocated memory was 184.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 128.4MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-05-04 16:10:40,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.67ms. Allocated memory is still 184.5MB. Free memory was 127.0MB in the beginning and 157.4MB in the end (delta: -30.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.54ms. Allocated memory is still 184.5MB. Free memory was 157.4MB in the beginning and 155.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.38ms. Allocated memory is still 184.5MB. Free memory was 155.4MB in the beginning and 153.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 566.96ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 129.7MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 787777.56ms. Allocated memory was 184.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 128.4MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7331, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 1506, dependent conditional: 1493, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5859, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 34, dependent conditional: 21, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5859, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 34, dependent conditional: 21, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 189, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 172, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 172, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 797, independent: 750, independent conditional: 0, independent unconditional: 750, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 797, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 49, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 241, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 189, dependent conditional: 129, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6048, independent: 5075, independent conditional: 0, independent unconditional: 5075, dependent: 176, dependent conditional: 138, dependent unconditional: 38, unknown: 797, unknown conditional: 34, unknown unconditional: 763] , Statistics on independence cache: Total cache size (in pairs): 797, Positive cache size: 750, Positive conditional cache size: 0, Positive unconditional cache size: 750, Negative cache size: 47, Negative conditional cache size: 34, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 13, Independence queries for same thread: 1472 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 292, Number of trivial persistent sets: 229, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 920, independent: 907, independent conditional: 0, independent unconditional: 907, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7331, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 1506, dependent conditional: 1493, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5859, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 34, dependent conditional: 21, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5859, independent: 5825, independent conditional: 4918, independent unconditional: 907, dependent: 34, dependent conditional: 21, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 189, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 172, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6048, independent: 5825, independent conditional: 0, independent unconditional: 5825, dependent: 223, dependent conditional: 172, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 797, independent: 750, independent conditional: 0, independent unconditional: 750, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 797, independent: 748, independent conditional: 0, independent unconditional: 748, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 49, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 47, dependent conditional: 34, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 241, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 189, dependent conditional: 129, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6048, independent: 5075, independent conditional: 0, independent unconditional: 5075, dependent: 176, dependent conditional: 138, dependent unconditional: 38, unknown: 797, unknown conditional: 34, unknown unconditional: 763] , Statistics on independence cache: Total cache size (in pairs): 797, Positive cache size: 750, Positive conditional cache size: 0, Positive unconditional cache size: 750, Negative cache size: 47, Negative conditional cache size: 34, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 13, Independence queries for same thread: 1472 - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 225 with TraceHistMax 10,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 8ms.. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 225 with TraceHistMax 10,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 8ms.. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 225 with TraceHistMax 10,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 8ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 146 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 787.6s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 60.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 503, 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: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 114.5s InterpolantComputationTime, 3581 NumberOfCodeBlocks, 3553 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 5128 ConstructedInterpolants, 86 QuantifiedInterpolants, 85560 SizeOfPredicates, 262 NumberOfNonLiveVariables, 3620 ConjunctsInSsa, 510 ConjunctsInUnsatCore, 34 InterpolantComputations, 4 PerfectInterpolantSequences, 1262/4236 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown