/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.partial.order.reduction.in.concurrent.analysis DPOR_SLEEP_NEW_STATES -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-99e0210 [2023-03-23 21:53:46,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-23 21:53:46,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-23 21:53:46,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-23 21:53:46,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-23 21:53:46,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-23 21:53:46,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-23 21:53:46,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-23 21:53:46,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-23 21:53:46,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-23 21:53:46,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-23 21:53:46,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-23 21:53:46,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-23 21:53:46,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-23 21:53:46,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-23 21:53:46,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-23 21:53:46,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-23 21:53:46,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-23 21:53:46,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-23 21:53:46,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-23 21:53:46,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-23 21:53:46,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-23 21:53:46,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-23 21:53:46,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-23 21:53:46,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-23 21:53:46,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-23 21:53:46,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-23 21:53:46,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-23 21:53:46,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-23 21:53:46,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-23 21:53:46,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-23 21:53:46,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-23 21:53:46,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-23 21:53:46,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-23 21:53:46,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-23 21:53:46,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-23 21:53:46,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-23 21:53:46,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-23 21:53:46,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-23 21:53:46,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-23 21:53:46,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-23 21:53:46,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-03-23 21:53:46,285 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-23 21:53:46,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-23 21:53:46,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-23 21:53:46,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-23 21:53:46,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-23 21:53:46,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-23 21:53:46,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-23 21:53:46,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-23 21:53:46,287 INFO L138 SettingsManager]: * Use SBE=true [2023-03-23 21:53:46,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-23 21:53:46,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-23 21:53:46,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 21:53:46,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-23 21:53:46,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-03-23 21:53:46,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-03-23 21:53:46,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-23 21:53:46,290 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-03-23 21:53:46,290 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-03-23 21:53:46,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> DPOR_SLEEP_NEW_STATES [2023-03-23 21:53:46,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-23 21:53:46,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-23 21:53:46,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-23 21:53:46,476 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-23 21:53:46,477 INFO L275 PluginConnector]: CDTParser initialized [2023-03-23 21:53:46,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-03-23 21:53:47,439 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-23 21:53:47,583 INFO L351 CDTParser]: Found 1 translation units. [2023-03-23 21:53:47,584 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2023-03-23 21:53:47,589 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9881c033/80bb5ee823fe4cd69294fe8846b44b57/FLAG79d767e55 [2023-03-23 21:53:47,601 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9881c033/80bb5ee823fe4cd69294fe8846b44b57 [2023-03-23 21:53:47,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-23 21:53:47,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-03-23 21:53:47,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-23 21:53:47,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-23 21:53:47,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-23 21:53:47,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4334b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47, skipping insertion in model container [2023-03-23 21:53:47,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-23 21:53:47,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-23 21:53:47,743 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2023-03-23 21:53:47,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 21:53:47,755 INFO L203 MainTranslator]: Completed pre-run [2023-03-23 21:53:47,772 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2023-03-23 21:53:47,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 21:53:47,779 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 21:53:47,779 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 21:53:47,783 INFO L208 MainTranslator]: Completed translation [2023-03-23 21:53:47,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47 WrapperNode [2023-03-23 21:53:47,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-23 21:53:47,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-03-23 21:53:47,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-03-23 21:53:47,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-03-23 21:53:47,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,812 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 265 [2023-03-23 21:53:47,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-03-23 21:53:47,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-23 21:53:47,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-23 21:53:47,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-23 21:53:47,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-23 21:53:47,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-23 21:53:47,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-23 21:53:47,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-23 21:53:47,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (1/1) ... [2023-03-23 21:53:47,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 21:53:47,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:53:47,880 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) [2023-03-23 21:53:47,884 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 [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-03-23 21:53:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-03-23 21:53:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-03-23 21:53:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-03-23 21:53:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-23 21:53:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-23 21:53:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-23 21:53:47,904 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-03-23 21:53:47,975 INFO L236 CfgBuilder]: Building ICFG [2023-03-23 21:53:47,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-23 21:53:48,289 INFO L277 CfgBuilder]: Performing block encoding [2023-03-23 21:53:48,398 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-23 21:53:48,398 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-23 21:53:48,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 09:53:48 BoogieIcfgContainer [2023-03-23 21:53:48,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-23 21:53:48,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-23 21:53:48,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-23 21:53:48,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-23 21:53:48,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 09:53:47" (1/3) ... [2023-03-23 21:53:48,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5815af9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 09:53:48, skipping insertion in model container [2023-03-23 21:53:48,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:53:47" (2/3) ... [2023-03-23 21:53:48,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5815af9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 09:53:48, skipping insertion in model container [2023-03-23 21:53:48,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 09:53:48" (3/3) ... [2023-03-23 21:53:48,408 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2023-03-23 21:53:48,435 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-03-23 21:53:48,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-23 21:53:48,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-23 21:53:48,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-03-23 21:53:48,483 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-03-23 21:53:48,511 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 21:53:48,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 21:53:48,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:53:48,514 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) [2023-03-23 21:53:48,515 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 [2023-03-23 21:53:48,536 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 21:53:48,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-03-23 21:53:48,546 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;@1f080d89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 21:53:48,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-03-23 21:53:49,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:49,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1850884336, now seen corresponding path program 1 times [2023-03-23 21:53:49,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:49,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425055252] [2023-03-23 21:53:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:53:49,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:49,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425055252] [2023-03-23 21:53:49,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425055252] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:53:49,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:53:49,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-23 21:53:49,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419190846] [2023-03-23 21:53:49,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:53:49,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-23 21:53:49,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-23 21:53:49,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-23 21:53:49,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:49,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:49,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.0) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-03-23 21:53:49,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:49,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-23 21:53:49,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:49,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash -230441335, now seen corresponding path program 1 times [2023-03-23 21:53:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:49,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906596193] [2023-03-23 21:53:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:49,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:53:49,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906596193] [2023-03-23 21:53:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906596193] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:53:49,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:53:49,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 21:53:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964779939] [2023-03-23 21:53:49,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:53:49,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 21:53:49,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:49,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 21:53:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-23 21:53:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:49,929 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:49,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2023-03-23 21:53:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:49,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:50,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-23 21:53:50,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:50,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1859652863, now seen corresponding path program 1 times [2023-03-23 21:53:50,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077783555] [2023-03-23 21:53:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:50,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077783555] [2023-03-23 21:53:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077783555] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:53:50,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:53:50,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 21:53:50,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115436121] [2023-03-23 21:53:50,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:53:50,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 21:53:50,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 21:53:50,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-23 21:53:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:50,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2023-03-23 21:53:50,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:50,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:50,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-23 21:53:50,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:50,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:50,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1548395933, now seen corresponding path program 1 times [2023-03-23 21:53:50,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:50,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998059572] [2023-03-23 21:53:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-23 21:53:52,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:52,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998059572] [2023-03-23 21:53:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998059572] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:53:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:53:52,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-03-23 21:53:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058300480] [2023-03-23 21:53:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:53:52,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-23 21:53:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-23 21:53:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-03-23 21:53:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:52,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:52,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.666666666666666) internal successors, (174), 18 states have internal predecessors, (174), 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) [2023-03-23 21:53:52,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:52,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:52,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:52,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:52,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:52,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:52,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:53:52,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-23 21:53:52,443 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:52,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash 52038506, now seen corresponding path program 1 times [2023-03-23 21:53:52,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:52,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151914941] [2023-03-23 21:53:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:52,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:52,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:52,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151914941] [2023-03-23 21:53:52,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151914941] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:53:52,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827594889] [2023-03-23 21:53:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:53:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:53:52,634 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) [2023-03-23 21:53:52,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-23 21:53:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:52,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-23 21:53:52,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:53:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:52,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:53:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827594889] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:53:53,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:53:53,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-03-23 21:53:53,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997949978] [2023-03-23 21:53:53,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:53:53,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-23 21:53:53,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:53,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-23 21:53:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-03-23 21:53:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:53,136 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:53,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.105263157894736) internal successors, (230), 19 states have internal predecessors, (230), 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) [2023-03-23 21:53:53,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:53:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:53:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:53:53,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-23 21:53:53,609 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 [2023-03-23 21:53:53,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:53:53,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:53:53,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1748794720, now seen corresponding path program 2 times [2023-03-23 21:53:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:53:53,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214382294] [2023-03-23 21:53:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:53:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:53:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:53:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:53:56,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:53:56,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214382294] [2023-03-23 21:53:56,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214382294] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:53:56,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93960807] [2023-03-23 21:53:56,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-23 21:53:56,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:53:56,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:53:56,562 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) [2023-03-23 21:53:56,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-23 21:53:56,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-23 21:53:56,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 21:53:56,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 31 conjunts are in the unsatisfiable core [2023-03-23 21:53:56,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:53:57,544 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-03-23 21:53:57,544 INFO L350 Elim1Store]: Elim1 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 [2023-03-23 21:53:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:57,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:53:57,816 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-03-23 21:53:57,817 INFO L350 Elim1Store]: Elim1 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 12 [2023-03-23 21:53:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-23 21:53:58,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93960807] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:53:58,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:53:58,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 14, 14] total 60 [2023-03-23 21:53:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122819538] [2023-03-23 21:53:58,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:53:58,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-03-23 21:53:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:53:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-03-23 21:53:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=3306, Unknown=0, NotChecked=0, Total=3540 [2023-03-23 21:53:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:58,817 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:53:58,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.333333333333333) internal successors, (440), 60 states have internal predecessors, (440), 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) [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:53:58,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:54:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:54:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:54:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:54:01,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-23 21:54:01,805 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 [2023-03-23 21:54:01,805 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:54:01,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:54:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1399702269, now seen corresponding path program 1 times [2023-03-23 21:54:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:54:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165609769] [2023-03-23 21:54:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:54:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:54:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:54:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:02,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:54:02,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165609769] [2023-03-23 21:54:02,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165609769] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:54:02,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095974426] [2023-03-23 21:54:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:54:02,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:54:02,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:54:02,030 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) [2023-03-23 21:54:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-23 21:54:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:54:02,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-23 21:54:02,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:54:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:02,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:54:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095974426] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:54:02,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:54:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-03-23 21:54:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370473483] [2023-03-23 21:54:02,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:54:02,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-23 21:54:02,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:54:02,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-23 21:54:02,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-03-23 21:54:02,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:02,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:54:02,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.421052631578947) internal successors, (236), 19 states have internal predecessors, (236), 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) [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:54:02,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:54:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:02,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-03-23 21:54:02,921 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 [2023-03-23 21:54:02,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:54:02,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:54:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1672689055, now seen corresponding path program 2 times [2023-03-23 21:54:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:54:02,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054431029] [2023-03-23 21:54:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:54:02,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:54:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:54:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:03,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:54:03,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054431029] [2023-03-23 21:54:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054431029] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:54:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127055044] [2023-03-23 21:54:03,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-23 21:54:03,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:54:03,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:54:03,812 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) [2023-03-23 21:54:03,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-23 21:54:03,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-23 21:54:03,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 21:54:03,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 36 conjunts are in the unsatisfiable core [2023-03-23 21:54:03,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:54:04,786 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-03-23 21:54:04,787 INFO L350 Elim1Store]: Elim1 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 11 [2023-03-23 21:54:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:04,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:54:04,985 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-03-23 21:54:04,985 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 11 [2023-03-23 21:54:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-03-23 21:54:06,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127055044] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:54:06,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:54:06,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 15] total 44 [2023-03-23 21:54:06,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87645822] [2023-03-23 21:54:06,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:54:06,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-03-23 21:54:06,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:54:06,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-03-23 21:54:06,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1641, Unknown=0, NotChecked=0, Total=1892 [2023-03-23 21:54:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:06,119 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:54:06,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.613636363636363) internal successors, (423), 44 states have internal predecessors, (423), 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) [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:54:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:54:07,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 21:54:07,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-23 21:54:07,526 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 [2023-03-23 21:54:07,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:54:07,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:54:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash -866365320, now seen corresponding path program 1 times [2023-03-23 21:54:07,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:54:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287797911] [2023-03-23 21:54:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:54:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:54:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:54:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:54:15,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:54:15,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287797911] [2023-03-23 21:54:15,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287797911] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:54:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492490495] [2023-03-23 21:54:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:54:15,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:54:15,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:54:15,476 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) [2023-03-23 21:54:15,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-23 21:54:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:54:15,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 79 conjunts are in the unsatisfiable core [2023-03-23 21:54:15,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:54:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-03-23 21:54:18,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:56:53,228 WARN L222 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:56:55,351 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse4 (* c_~q2_back~0 4)) (.cse5 (select (select |c_#memory_int| c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)))) (let ((.cse2 (forall ((~q2~0.base Int) (~q2~0.offset Int)) (not (= (select (select |c_#memory_int| ~q2~0.base) (+ ~q2~0.offset .cse4)) .cse5)))) (.cse0 (* c_~C~0 2)) (.cse1 (mod (+ c_~C~0 c_~x~0) 4294967296))) (and (or (= (mod (+ .cse0 c_~z~0) 4294967296) .cse1) .cse2) (forall ((~q2~0.base Int) (~q2~0.offset Int)) (let ((.cse3 (select |c_#memory_int| ~q2~0.base))) (or (= c_~N~0 (select .cse3 (+ ~q2~0.offset (* c_~q2_front~0 4)))) (not (= (select .cse3 (+ ~q2~0.offset .cse4)) .cse5))))) (or .cse2 (= (mod (+ c_~y~0 .cse0) 4294967296) .cse1))))) is different from false [2023-03-23 21:57:27,716 WARN L222 SmtUtils]: Spent 32.18s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:57:58,153 WARN L222 SmtUtils]: Spent 30.25s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:58:30,422 WARN L222 SmtUtils]: Spent 32.11s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:59:06,836 WARN L222 SmtUtils]: Spent 32.09s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:59:06,949 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 21:59:06,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 293 [2023-03-23 21:59:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-03-23 21:59:11,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492490495] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:59:11,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:59:11,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 31, 28] total 112 [2023-03-23 21:59:11,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438292418] [2023-03-23 21:59:11,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:59:11,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2023-03-23 21:59:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:59:11,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2023-03-23 21:59:11,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=680, Invalid=11476, Unknown=58, NotChecked=218, Total=12432 [2023-03-23 21:59:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:11,569 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:59:11,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 4.866071428571429) internal successors, (545), 112 states have internal predecessors, (545), 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) [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-03-23 21:59:11,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:49,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-03-23 21:59:51,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:59:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 21:59:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-03-23 21:59:52,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-23 21:59:52,419 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 [2023-03-23 21:59:52,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:59:52,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:59:52,420 INFO L85 PathProgramCache]: Analyzing trace with hash -440830437, now seen corresponding path program 2 times [2023-03-23 21:59:52,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:59:52,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69587399] [2023-03-23 21:59:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:59:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:59:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:59:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-03-23 21:59:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:59:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69587399] [2023-03-23 21:59:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69587399] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:59:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258022385] [2023-03-23 21:59:54,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-23 21:59:54,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:59:54,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:59:54,533 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) [2023-03-23 21:59:54,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-23 21:59:54,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-23 21:59:54,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 21:59:54,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 42 conjunts are in the unsatisfiable core [2023-03-23 21:59:54,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:59:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-03-23 21:59:55,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:59:55,769 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-03-23 21:59:55,769 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 14 [2023-03-23 21:59:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-03-23 21:59:56,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258022385] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:59:56,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:59:56,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 20, 20] total 61 [2023-03-23 21:59:56,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320530324] [2023-03-23 21:59:56,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:59:56,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-03-23 21:59:56,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:59:56,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-03-23 21:59:56,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=3167, Unknown=0, NotChecked=0, Total=3660 [2023-03-23 21:59:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:56,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:59:56,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 8.262295081967213) internal successors, (504), 61 states have internal predecessors, (504), 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) [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-03-23 21:59:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 21:59:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-03-23 21:59:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-03-23 21:59:58,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-03-23 21:59:58,785 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 [2023-03-23 21:59:58,785 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 21:59:58,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:59:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1443937655, now seen corresponding path program 3 times [2023-03-23 21:59:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:59:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030444268] [2023-03-23 21:59:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:59:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:59:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:00:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-03-23 22:00:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:00:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030444268] [2023-03-23 22:00:00,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030444268] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:00:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222883509] [2023-03-23 22:00:00,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-23 22:00:00,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:00:00,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:00:00,173 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) [2023-03-23 22:00:00,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-03-23 22:00:00,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-23 22:00:00,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:00:00,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 16 conjunts are in the unsatisfiable core [2023-03-23 22:00:00,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:00:00,774 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 8 [2023-03-23 22:00:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-03-23 22:00:00,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:00:00,840 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-03-23 22:00:00,841 INFO L350 Elim1Store]: Elim1 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 13 [2023-03-23 22:00:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-03-23 22:00:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222883509] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:00:01,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:00:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 8, 8] total 30 [2023-03-23 22:00:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639970131] [2023-03-23 22:00:01,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:00:01,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-03-23 22:00:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:00:01,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-03-23 22:00:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2023-03-23 22:00:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:01,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:00:01,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 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) [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-03-23 22:00:02,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-03-23 22:00:02,343 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 [2023-03-23 22:00:02,344 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 22:00:02,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:00:02,344 INFO L85 PathProgramCache]: Analyzing trace with hash -435382934, now seen corresponding path program 4 times [2023-03-23 22:00:02,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:00:02,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845474609] [2023-03-23 22:00:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:00:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:00:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:00:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-03-23 22:00:04,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:00:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845474609] [2023-03-23 22:00:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845474609] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:00:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001145901] [2023-03-23 22:00:04,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-23 22:00:04,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:00:04,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:00:04,813 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) [2023-03-23 22:00:04,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-03-23 22:00:04,948 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-23 22:00:04,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:00:04,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 19 conjunts are in the unsatisfiable core [2023-03-23 22:00:04,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:00:05,587 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-03-23 22:00:05,587 INFO L350 Elim1Store]: Elim1 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 [2023-03-23 22:00:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-03-23 22:00:05,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:00:05,778 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-03-23 22:00:05,779 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 14 [2023-03-23 22:00:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-03-23 22:00:06,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001145901] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:00:06,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:00:06,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 43 [2023-03-23 22:00:06,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073716313] [2023-03-23 22:00:06,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:00:06,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-03-23 22:00:06,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:00:06,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-03-23 22:00:06,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1654, Unknown=0, NotChecked=0, Total=1806 [2023-03-23 22:00:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:06,127 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:00:06,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 9.325581395348838) internal successors, (401), 43 states have internal predecessors, (401), 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) [2023-03-23 22:00:06,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:06,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:06,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:06,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-03-23 22:00:06,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-03-23 22:00:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-03-23 22:00:08,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-03-23 22:00:08,676 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 [2023-03-23 22:00:08,677 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 22:00:08,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:00:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash -340222649, now seen corresponding path program 5 times [2023-03-23 22:00:08,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:00:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004461945] [2023-03-23 22:00:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:00:08,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:00:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:00:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 25 proven. 171 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-03-23 22:00:10,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:00:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004461945] [2023-03-23 22:00:10,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004461945] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:00:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637186053] [2023-03-23 22:00:10,933 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-03-23 22:00:10,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:00:10,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:00:10,934 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) [2023-03-23 22:00:10,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-03-23 22:00:11,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-03-23 22:00:11,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:00:11,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 58 conjunts are in the unsatisfiable core [2023-03-23 22:00:11,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:00:12,780 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:00:12,782 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:00:12,782 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 16 [2023-03-23 22:00:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-03-23 22:00:12,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:00:13,127 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-03-23 22:00:13,127 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 17 [2023-03-23 22:00:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 100 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-03-23 22:00:14,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637186053] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:00:14,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:00:14,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 28, 23] total 80 [2023-03-23 22:00:14,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588555716] [2023-03-23 22:00:14,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:00:14,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-03-23 22:00:14,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:00:14,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-03-23 22:00:14,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=842, Invalid=5478, Unknown=0, NotChecked=0, Total=6320 [2023-03-23 22:00:14,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:14,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:00:14,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 7.2375) internal successors, (579), 80 states have internal predecessors, (579), 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) [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:14,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:14,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:14,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-03-23 22:00:14,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-03-23 22:00:14,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-03-23 22:00:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-03-23 22:00:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-03-23 22:00:17,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-03-23 22:00:17,787 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 [2023-03-23 22:00:17,787 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-03-23 22:00:17,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:00:17,788 INFO L85 PathProgramCache]: Analyzing trace with hash -83058606, now seen corresponding path program 6 times [2023-03-23 22:00:17,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:00:17,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390180590] [2023-03-23 22:00:17,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:00:17,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:00:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:00:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 298 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:00:55,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:00:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390180590] [2023-03-23 22:00:55,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390180590] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:00:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943344126] [2023-03-23 22:00:55,373 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-03-23 22:00:55,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:00:55,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:00:55,374 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) [2023-03-23 22:00:55,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-03-23 22:00:55,980 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-03-23 22:00:55,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:00:55,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 178 conjunts are in the unsatisfiable core [2023-03-23 22:00:55,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:01:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 294 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-23 22:01:30,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:02:10,169 WARN L222 SmtUtils]: Spent 32.12s on a formula simplification that was a NOOP. DAG size: 65 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:02:41,637 WARN L222 SmtUtils]: Spent 28.30s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-03-23 22:02:46,983 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-03-23 22:02:46,983 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 [2023-03-23 22:02:46,983 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 [2023-03-23 22:02:47,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-03-23 22:02:47,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-03-23 22:02:48,189 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-03-23 22:02:48,256 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-03-23 22:02:48,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-03-23 22:02:48,257 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:236) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:311) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-03-23 22:02:48,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2023-03-23 22:02:48,264 INFO L158 Benchmark]: Toolchain (without parser) took 540660.84ms. Allocated memory was 191.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 140.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 487.1MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.13ms. Allocated memory is still 191.9MB. Free memory was 140.5MB in the beginning and 128.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 191.9MB. Free memory was 128.3MB in the beginning and 125.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: Boogie Preprocessor took 23.96ms. Allocated memory is still 191.9MB. Free memory was 125.8MB in the beginning and 124.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: RCFGBuilder took 549.50ms. Allocated memory is still 191.9MB. Free memory was 123.8MB in the beginning and 89.1MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,265 INFO L158 Benchmark]: TraceAbstraction took 539861.02ms. Allocated memory was 191.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 88.5MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 434.7MB. Max. memory is 8.0GB. [2023-03-23 22:02:48,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.13ms. Allocated memory is still 191.9MB. Free memory was 140.5MB in the beginning and 128.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 191.9MB. Free memory was 128.3MB in the beginning and 125.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.96ms. Allocated memory is still 191.9MB. Free memory was 125.8MB in the beginning and 124.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 549.50ms. Allocated memory is still 191.9MB. Free memory was 123.8MB in the beginning and 89.1MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 539861.02ms. Allocated memory was 191.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 88.5MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 434.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown