/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-two-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-99e0210 [2023-03-23 22:05:29,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-23 22:05:29,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-23 22:05:29,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-23 22:05:29,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-23 22:05:29,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-23 22:05:29,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-23 22:05:29,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-23 22:05:29,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-23 22:05:29,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-23 22:05:29,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-23 22:05:29,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-23 22:05:29,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-23 22:05:29,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-23 22:05:29,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-23 22:05:29,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-23 22:05:29,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-23 22:05:29,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-23 22:05:29,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-23 22:05:29,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-23 22:05:29,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-23 22:05:29,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-23 22:05:29,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-23 22:05:29,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-23 22:05:29,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-23 22:05:29,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-23 22:05:29,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-23 22:05:29,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-23 22:05:29,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-23 22:05:29,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-23 22:05:29,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-23 22:05:29,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-23 22:05:29,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-23 22:05:29,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-23 22:05:29,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-23 22:05:29,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-23 22:05:29,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-23 22:05:29,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-23 22:05:29,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-23 22:05:29,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-23 22:05:29,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-23 22:05:29,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-03-23 22:05:29,559 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-23 22:05:29,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-23 22:05:29,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-23 22:05:29,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-23 22:05:29,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-23 22:05:29,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-23 22:05:29,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-23 22:05:29,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * Use SBE=true [2023-03-23 22:05:29,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-23 22:05:29,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-23 22:05:29,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-03-23 22:05:29,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 22:05:29,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-23 22:05:29,563 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-03-23 22:05:29,564 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-03-23 22:05:29,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> DPOR_SLEEP_NEW_STATES [2023-03-23 22:05:29,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-23 22:05:29,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-23 22:05:29,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-23 22:05:29,733 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-23 22:05:29,733 INFO L275 PluginConnector]: CDTParser initialized [2023-03-23 22:05:29,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2023-03-23 22:05:30,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-23 22:05:30,896 INFO L351 CDTParser]: Found 1 translation units. [2023-03-23 22:05:30,897 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2023-03-23 22:05:30,901 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba95e9e6/60872fa399624b799d4c252f2822513b/FLAG4cbc91bb8 [2023-03-23 22:05:30,911 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba95e9e6/60872fa399624b799d4c252f2822513b [2023-03-23 22:05:30,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-23 22:05:30,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-03-23 22:05:30,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-23 22:05:30,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-23 22:05:30,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-23 22:05:30,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 10:05:30" (1/1) ... [2023-03-23 22:05:30,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d2ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:30, skipping insertion in model container [2023-03-23 22:05:30,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 10:05:30" (1/1) ... [2023-03-23 22:05:30,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-23 22:05:30,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-23 22:05:31,049 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-two-queue.wvr.c[2987,3000] [2023-03-23 22:05:31,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 22:05:31,062 INFO L203 MainTranslator]: Completed pre-run [2023-03-23 22:05:31,076 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-two-queue.wvr.c[2987,3000] [2023-03-23 22:05:31,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 22:05:31,086 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 22:05:31,087 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-03-23 22:05:31,091 INFO L208 MainTranslator]: Completed translation [2023-03-23 22:05:31,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31 WrapperNode [2023-03-23 22:05:31,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-23 22:05:31,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-03-23 22:05:31,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-03-23 22:05:31,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-03-23 22:05:31,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,119 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 207 [2023-03-23 22:05:31,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-03-23 22:05:31,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-23 22:05:31,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-23 22:05:31,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-23 22:05:31,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-23 22:05:31,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-23 22:05:31,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-23 22:05:31,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-23 22:05:31,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (1/1) ... [2023-03-23 22:05:31,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 22:05:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:05:31,176 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 22:05:31,183 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 22:05:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-23 22:05:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-03-23 22:05:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-03-23 22:05:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-23 22:05:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-23 22:05:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-23 22:05:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-23 22:05:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-23 22:05:31,206 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 22:05:31,278 INFO L236 CfgBuilder]: Building ICFG [2023-03-23 22:05:31,280 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-23 22:05:31,643 INFO L277 CfgBuilder]: Performing block encoding [2023-03-23 22:05:31,720 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-23 22:05:31,721 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-23 22:05:31,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 10:05:31 BoogieIcfgContainer [2023-03-23 22:05:31,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-23 22:05:31,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-23 22:05:31,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-23 22:05:31,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-23 22:05:31,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 10:05:30" (1/3) ... [2023-03-23 22:05:31,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e25d9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 10:05:31, skipping insertion in model container [2023-03-23 22:05:31,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 10:05:31" (2/3) ... [2023-03-23 22:05:31,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e25d9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 10:05:31, skipping insertion in model container [2023-03-23 22:05:31,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 10:05:31" (3/3) ... [2023-03-23 22:05:31,728 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2023-03-23 22:05:31,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-03-23 22:05:31,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-23 22:05:31,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-23 22:05:31,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-03-23 22:05:31,792 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-03-23 22:05:31,825 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 22:05:31,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 22:05:31,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:05:31,828 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 22:05:31,829 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 22:05:31,859 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 22:05:31,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-03-23 22:05:31,874 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;@5ba846b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 22:05:31,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-03-23 22:05:32,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:32,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1690162235, now seen corresponding path program 1 times [2023-03-23 22:05:32,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:32,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419082289] [2023-03-23 22:05:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:32,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:32,627 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 22:05:32,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:32,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419082289] [2023-03-23 22:05:32,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419082289] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:05:32,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:05:32,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-23 22:05:32,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783392394] [2023-03-23 22:05:32,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:05:32,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-23 22:05:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-23 22:05:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-23 22:05:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:32,662 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:32,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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 22:05:32,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:32,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-23 22:05:32,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:32,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash 73759907, now seen corresponding path program 1 times [2023-03-23 22:05:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:32,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974719722] [2023-03-23 22:05:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:32,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:33,248 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 22:05:33,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:33,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974719722] [2023-03-23 22:05:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974719722] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:05:33,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:05:33,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 22:05:33,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563740560] [2023-03-23 22:05:33,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:05:33,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 22:05:33,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:33,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 22:05:33,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-23 22:05:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:33,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 22:05:33,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:33,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-23 22:05:33,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:33,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2109252431, now seen corresponding path program 1 times [2023-03-23 22:05:33,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:33,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308404475] [2023-03-23 22:05:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:33,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-23 22:05:33,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:33,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308404475] [2023-03-23 22:05:33,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308404475] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:05:33,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:05:33,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 22:05:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234676575] [2023-03-23 22:05:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:05:33,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 22:05:33,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 22:05:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-23 22:05:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:33,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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 22:05:33,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:33,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-23 22:05:33,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:33,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1577760444, now seen corresponding path program 1 times [2023-03-23 22:05:33,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:33,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736358929] [2023-03-23 22:05:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:33,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-03-23 22:05:34,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:34,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736358929] [2023-03-23 22:05:34,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736358929] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:05:34,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:05:34,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-23 22:05:34,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388852197] [2023-03-23 22:05:34,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:05:34,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-23 22:05:34,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:34,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-23 22:05:34,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-23 22:05:34,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,038 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:34,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 22:05:34,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:34,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:34,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:34,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-23 22:05:34,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:34,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash -234563278, now seen corresponding path program 1 times [2023-03-23 22:05:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817708569] [2023-03-23 22:05:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-23 22:05:34,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817708569] [2023-03-23 22:05:34,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817708569] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:05:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752600171] [2023-03-23 22:05:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:34,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:05:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:05:34,443 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 22:05:34,444 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 22:05:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:34,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-23 22:05:34,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:05:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-23 22:05:34,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:05:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-23 22:05:34,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752600171] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:05:34,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:05:34,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-03-23 22:05:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930990262] [2023-03-23 22:05:34,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:05:34,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-23 22:05:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-23 22:05:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-03-23 22:05:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,883 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:34,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.631578947368421) internal successors, (202), 19 states have internal predecessors, (202), 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 22:05:34,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:34,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:34,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:34,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:34,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:05:35,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-23 22:05:35,314 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 22:05:35,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:35,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:35,317 INFO L85 PathProgramCache]: Analyzing trace with hash -726361312, now seen corresponding path program 2 times [2023-03-23 22:05:35,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:35,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794451906] [2023-03-23 22:05:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:35,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-23 22:05:35,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:35,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794451906] [2023-03-23 22:05:35,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794451906] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:05:35,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:05:35,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-23 22:05:35,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419173429] [2023-03-23 22:05:35,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:05:35,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-23 22:05:35,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:35,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-23 22:05:35,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-23 22:05:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,579 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:35,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:05:35,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:05:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:05:35,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-23 22:05:35,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:05:35,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:05:35,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1998695098, now seen corresponding path program 3 times [2023-03-23 22:05:35,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:05:35,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548230700] [2023-03-23 22:05:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:05:35,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:05:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:05:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:05:39,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:05:39,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548230700] [2023-03-23 22:05:39,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548230700] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:05:39,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825578809] [2023-03-23 22:05:39,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-23 22:05:39,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:05:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:05:39,203 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 22:05:39,205 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 22:05:39,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-03-23 22:05:39,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:05:39,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 55 conjunts are in the unsatisfiable core [2023-03-23 22:05:39,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:05:39,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:05:39,598 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-23 22:05:39,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-23 22:05:41,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-23 22:05:41,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:05:41,897 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-03-23 22:05:41,897 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 54 treesize of output 18 [2023-03-23 22:05:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-23 22:05:42,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:05:43,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:05:43,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 69 [2023-03-23 22:05:43,622 INFO L321 Elim1Store]: treesize reduction 5, result has 94.6 percent of original size [2023-03-23 22:05:43,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 182 [2023-03-23 22:05:43,634 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:05:43,673 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:05:43,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 125 [2023-03-23 22:05:46,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:05:46,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 69 [2023-03-23 22:05:46,346 INFO L321 Elim1Store]: treesize reduction 46, result has 50.5 percent of original size [2023-03-23 22:05:46,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 141 [2023-03-23 22:05:46,384 INFO L321 Elim1Store]: treesize reduction 36, result has 55.6 percent of original size [2023-03-23 22:05:46,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 97 [2023-03-23 22:05:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-23 22:05:48,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825578809] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:05:48,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:05:48,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 33, 28] total 94 [2023-03-23 22:05:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387428315] [2023-03-23 22:05:48,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:05:48,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-03-23 22:05:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:05:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-03-23 22:05:48,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=706, Invalid=8027, Unknown=9, NotChecked=0, Total=8742 [2023-03-23 22:05:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:48,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:05:48,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 4.297872340425532) internal successors, (404), 94 states have internal predecessors, (404), 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 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:05:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:06:15,266 WARN L222 SmtUtils]: Spent 26.71s on a formula simplification. DAG size of input: 69 DAG size of output: 61 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:06:53,645 WARN L222 SmtUtils]: Spent 37.26s on a formula simplification. DAG size of input: 97 DAG size of output: 78 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:06:58,693 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 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:03,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-03-23 22:07:03,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:07:03,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:07:03,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:07:03,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1914479475, now seen corresponding path program 4 times [2023-03-23 22:07:03,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:07:03,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923190056] [2023-03-23 22:07:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:07:03,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:07:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:07:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-03-23 22:07:04,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:07:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923190056] [2023-03-23 22:07:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923190056] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 22:07:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 22:07:04,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-23 22:07:04,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051474666] [2023-03-23 22:07:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 22:07:04,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-23 22:07:04,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:07:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-23 22:07:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-23 22:07:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:04,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:07:04,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:04,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:07:04,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-23 22:07:04,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:07:04,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:07:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1940396991, now seen corresponding path program 5 times [2023-03-23 22:07:04,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:07:04,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882149921] [2023-03-23 22:07:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:07:04,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:07:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:07:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 22 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-23 22:07:04,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:07:04,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882149921] [2023-03-23 22:07:04,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882149921] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:07:04,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922714923] [2023-03-23 22:07:04,423 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-03-23 22:07:04,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:07:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:07:04,424 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 22:07:04,426 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 22:07:04,532 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-03-23 22:07:04,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:07:04,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-23 22:07:04,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:07:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-03-23 22:07:04,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:07:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 25 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-03-23 22:07:05,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922714923] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:07:05,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:07:05,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 7] total 20 [2023-03-23 22:07:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469000150] [2023-03-23 22:07:05,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:07:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-03-23 22:07:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:07:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-03-23 22:07:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-03-23 22:07:05,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:05,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:07:05,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 19.25) internal successors, (385), 20 states have internal predecessors, (385), 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 22:07:05,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:07:05,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-23 22:07:05,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-23 22:07:05,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:07:05,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:07:05,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:07:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1110262496, now seen corresponding path program 6 times [2023-03-23 22:07:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:07:05,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581887415] [2023-03-23 22:07:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:07:05,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:07:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:07:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:07:09,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:07:09,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581887415] [2023-03-23 22:07:09,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581887415] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:07:09,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365960966] [2023-03-23 22:07:09,275 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-03-23 22:07:09,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:07:09,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:07:09,276 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 22:07:09,277 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 22:07:09,493 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-03-23 22:07:09,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:07:09,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 82 conjunts are in the unsatisfiable core [2023-03-23 22:07:09,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:07:10,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-03-23 22:07:10,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:07:11,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:07:12,092 INFO L321 Elim1Store]: treesize reduction 25, result has 49.0 percent of original size [2023-03-23 22:07:12,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 38 [2023-03-23 22:07:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-23 22:07:12,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:07:31,423 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_~q1_back~0 4)) (.cse6 (* c_~q1_front~0 4))) (and (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int)) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse4 (select .cse8 ~q1~0.base)) (.cse7 (select .cse8 c_~q2~0.base))) (let ((.cse0 (select .cse7 (+ (* 4 v_~q2_front~0_41) c_~q2~0.offset))) (.cse3 (select .cse7 (+ c_~q2~0.offset (* ~q2_back~0 4)))) (.cse2 (select .cse4 (+ .cse6 ~q1~0.offset 4))) (.cse1 (select .cse4 (+ .cse5 ~q1~0.offset 4)))) (or (< .cse0 .cse1) (< .cse2 (+ .cse3 1)) (< v_~q2_front~0_41 1) (< .cse0 .cse3) (< .cse2 (+ .cse1 1)) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))) (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse13 (select .cse15 ~q1~0.base)) (.cse14 (select .cse15 c_~q2~0.base))) (let ((.cse9 (select .cse14 (+ (* 4 v_~q2_front~0_41) c_~q2~0.offset))) (.cse12 (select .cse14 (+ c_~q2~0.offset (* ~q2_back~0 4)))) (.cse11 (select .cse13 (+ .cse6 ~q1~0.offset 4))) (.cse10 (select .cse13 (+ .cse5 ~q1~0.offset 4)))) (or (< v_~q2_front~0_41 1) (< .cse9 (+ .cse10 1)) (< .cse11 .cse12) (< .cse9 (+ .cse12 1)) (< .cse11 .cse10) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))))) is different from false [2023-03-23 22:07:31,682 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (* c_~q1_front~0 4)) (.cse5 (* c_~q1_back~0 4))) (and (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse6 (select .cse8 c_~q2~0.base)) (.cse4 (select .cse8 ~q1~0.base))) (let ((.cse2 (select .cse4 (+ .cse7 ~q1~0.offset 4))) (.cse1 (select .cse6 (+ c_~q2~0.offset (* ~q2_back~0 4)))) (.cse0 (select .cse6 (+ (* 4 v_~q2_front~0_41) c_~q2~0.offset))) (.cse3 (select .cse4 (+ .cse5 ~q1~0.offset 4)))) (or (< .cse0 (+ .cse1 1)) (< .cse2 .cse3) (< v_~q2_front~0_41 1) (< .cse2 .cse1) (< .cse0 (+ .cse3 1)) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))) (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse15 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse13 (select .cse15 c_~q2~0.base)) (.cse14 (select .cse15 ~q1~0.base))) (let ((.cse10 (select .cse14 (+ .cse5 ~q1~0.offset 4))) (.cse9 (select .cse14 (+ .cse7 ~q1~0.offset 4))) (.cse11 (select .cse13 (+ (* 4 v_~q2_front~0_41) c_~q2~0.offset))) (.cse12 (select .cse13 (+ c_~q2~0.offset (* ~q2_back~0 4))))) (or (< .cse9 (+ .cse10 1)) (< v_~q2_front~0_41 1) (< .cse11 .cse10) (< .cse9 (+ .cse12 1)) (< .cse11 .cse12) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))))) is different from false [2023-03-23 22:07:31,866 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (* c_~q1_back~0 4)) (.cse6 (* c_~q1_front~0 4))) (and (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse5 (select .cse8 ~q1~0.base)) (.cse4 (select .cse8 |c_ULTIMATE.start_main_#t~ret17#1.base|))) (let ((.cse2 (select .cse4 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_main_#t~ret17#1.offset|))) (.cse1 (select .cse5 (+ .cse7 ~q1~0.offset 4))) (.cse0 (select .cse5 (+ .cse6 ~q1~0.offset 4))) (.cse3 (select .cse4 (+ |c_ULTIMATE.start_main_#t~ret17#1.offset| (* ~q2_back~0 4))))) (or (< .cse0 (+ .cse1 1)) (< .cse2 .cse3) (< .cse2 .cse1) (< v_~q2_front~0_41 1) (< .cse0 (+ .cse3 1)) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))) (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse15 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse13 (select .cse15 |c_ULTIMATE.start_main_#t~ret17#1.base|)) (.cse14 (select .cse15 ~q1~0.base))) (let ((.cse9 (select .cse14 (+ .cse6 ~q1~0.offset 4))) (.cse10 (select .cse14 (+ .cse7 ~q1~0.offset 4))) (.cse12 (select .cse13 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_main_#t~ret17#1.offset|))) (.cse11 (select .cse13 (+ |c_ULTIMATE.start_main_#t~ret17#1.offset| (* ~q2_back~0 4))))) (or (< .cse9 .cse10) (< v_~q2_front~0_41 1) (< .cse9 .cse11) (< .cse12 (+ .cse10 1)) (< .cse12 (+ .cse11 1)) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))))) is different from false [2023-03-23 22:07:31,914 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (* c_~q1_back~0 4)) (.cse6 (* c_~q1_front~0 4))) (and (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse5 (select .cse8 ~q1~0.base)) (.cse4 (select .cse8 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (let ((.cse0 (select .cse4 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (.cse3 (select .cse5 (+ .cse7 ~q1~0.offset 4))) (.cse2 (select .cse5 (+ .cse6 ~q1~0.offset 4))) (.cse1 (select .cse4 (+ (* ~q2_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (or (< .cse0 (+ .cse1 1)) (< .cse2 .cse3) (< v_~q2_front~0_41 1) (< .cse0 (+ .cse3 1)) (< .cse2 .cse1) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))) (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse15 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse14 (select .cse15 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|)) (.cse13 (select .cse15 ~q1~0.base))) (let ((.cse9 (select .cse13 (+ .cse6 ~q1~0.offset 4))) (.cse12 (select .cse14 (+ (* ~q2_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (.cse11 (select .cse14 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (.cse10 (select .cse13 (+ .cse7 ~q1~0.offset 4)))) (or (< .cse9 (+ .cse10 1)) (< v_~q2_front~0_41 1) (< .cse11 .cse12) (< .cse9 (+ .cse12 1)) (< .cse11 .cse10) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))))) is different from false [2023-03-23 22:07:31,962 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse6 (* c_~q1_back~0 4)) (.cse7 (* c_~q1_front~0 4))) (and (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse4 (select .cse8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse5 (select .cse8 ~q1~0.base))) (let ((.cse0 (select .cse5 (+ .cse7 ~q1~0.offset 4))) (.cse2 (select .cse5 (+ .cse6 ~q1~0.offset 4))) (.cse3 (select .cse4 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (.cse1 (select .cse4 (+ (* ~q2_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (or (< .cse0 (+ .cse1 1)) (< .cse0 (+ .cse2 1)) (< v_~q2_front~0_41 1) (< .cse3 .cse2) (< .cse3 .cse1) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))) (forall ((v_ArrVal_248 (Array Int Int)) (~q1~0.offset Int) (~q2_back~0 Int) (~q1~0.base Int) (v_~q2_front~0_41 Int) (v_ArrVal_247 (Array Int Int))) (let ((.cse15 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_248))) (let ((.cse13 (select .cse15 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse14 (select .cse15 ~q1~0.base))) (let ((.cse9 (select .cse14 (+ .cse7 ~q1~0.offset 4))) (.cse10 (select .cse14 (+ .cse6 ~q1~0.offset 4))) (.cse12 (select .cse13 (+ (* 4 v_~q2_front~0_41) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (.cse11 (select .cse13 (+ (* ~q2_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (or (< .cse9 .cse10) (< v_~q2_front~0_41 1) (< .cse9 .cse11) (< .cse12 (+ .cse10 1)) (< .cse12 (+ .cse11 1)) (<= c_~n2~0 ~q2_back~0) (< ~q2_back~0 v_~q2_front~0_41)))))))) is different from false [2023-03-23 22:07:32,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:32,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 145 [2023-03-23 22:07:32,932 INFO L321 Elim1Store]: treesize reduction 9, result has 90.7 percent of original size [2023-03-23 22:07:32,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1077 treesize of output 994 [2023-03-23 22:07:32,951 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:07:32,991 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:32,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 835 treesize of output 781 [2023-03-23 22:07:33,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:07:33,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:33,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 777 treesize of output 593 [2023-03-23 22:07:58,426 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:58,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 145 [2023-03-23 22:07:58,469 INFO L321 Elim1Store]: treesize reduction 53, result has 45.4 percent of original size [2023-03-23 22:07:58,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2077 treesize of output 1798 [2023-03-23 22:07:58,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-23 22:07:58,553 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:07:58,568 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:58,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 874 treesize of output 628 [2023-03-23 22:07:58,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-23 22:07:58,588 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:07:58,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:07:58,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 592 treesize of output 485 [2023-03-23 22:07:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 25 refuted. 1 times theorem prover too weak. 27 trivial. 0 not checked. [2023-03-23 22:07:59,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365960966] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:07:59,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:07:59,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 39, 34] total 113 [2023-03-23 22:07:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326327977] [2023-03-23 22:07:59,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:07:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-03-23 22:07:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:07:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-03-23 22:07:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=10829, Unknown=14, NotChecked=1080, Total=12656 [2023-03-23 22:07:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:59,615 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:07:59,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 3.920353982300885) internal successors, (443), 113 states have internal predecessors, (443), 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 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-03-23 22:07:59,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:08:06,020 WARN L222 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 98 DAG size of output: 56 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:08:51,286 WARN L222 SmtUtils]: Spent 44.33s on a formula simplification. DAG size of input: 167 DAG size of output: 115 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:08:53,312 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 22:09:07,527 WARN L222 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 86 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:09:09,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-03-23 22:09:11,552 WARN L539 Checker$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 22:09:25,775 WARN L222 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 89 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:09:38,098 WARN L222 SmtUtils]: Spent 12.08s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 22:09:40,127 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 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-23 22:09:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-03-23 22:09:47,119 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 22:09:47,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-23 22:09:47,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:09:47,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:09:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash 768009889, now seen corresponding path program 7 times [2023-03-23 22:09:47,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:09:47,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867731790] [2023-03-23 22:09:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:09:47,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:09:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:10:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:10:02,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:10:02,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867731790] [2023-03-23 22:10:02,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867731790] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:10:02,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343417082] [2023-03-23 22:10:02,491 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-03-23 22:10:02,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:10:02,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:10:02,492 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 22:10:02,492 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 22:10:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:10:02,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 72 conjunts are in the unsatisfiable core [2023-03-23 22:10:02,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:10:05,697 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:10:05,698 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 47 treesize of output 35 [2023-03-23 22:10:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-23 22:10:06,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:10:07,603 INFO L321 Elim1Store]: treesize reduction 22, result has 90.0 percent of original size [2023-03-23 22:10:07,603 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 88 treesize of output 228 [2023-03-23 22:10:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-03-23 22:10:12,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343417082] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 22:10:12,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 22:10:12,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 37, 34] total 127 [2023-03-23 22:10:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345625930] [2023-03-23 22:10:12,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 22:10:12,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2023-03-23 22:10:12,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 22:10:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2023-03-23 22:10:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=15046, Unknown=0, NotChecked=0, Total=16002 [2023-03-23 22:10:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:10:12,173 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 22:10:12,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 127 states have (on average 3.921259842519685) internal successors, (498), 127 states have internal predecessors, (498), 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 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-03-23 22:10:12,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:10:20,624 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 [0] [2023-03-23 22:10:22,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-03-23 22:10:27,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-03-23 22:10:29,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-03-23 22:10:31,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-03-23 22:10:35,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-03-23 22:10:37,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-03-23 22:10:39,346 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 [0, 1] [2023-03-23 22:10:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-03-23 22:10:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-03-23 22:10:39,992 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 22:10:40,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:10:40,186 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-03-23 22:10:40,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 22:10:40,186 INFO L85 PathProgramCache]: Analyzing trace with hash 932334824, now seen corresponding path program 8 times [2023-03-23 22:10:40,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 22:10:40,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210941328] [2023-03-23 22:10:40,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 22:10:40,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 22:10:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 22:10:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:10:48,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 22:10:48,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210941328] [2023-03-23 22:10:48,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210941328] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 22:10:48,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300304304] [2023-03-23 22:10:48,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-23 22:10:48,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:10:48,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 22:10:48,265 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 22:10:48,266 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 22:10:48,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-23 22:10:48,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-23 22:10:48,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 120 conjunts are in the unsatisfiable core [2023-03-23 22:10:48,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 22:10:48,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:50,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-03-23 22:10:50,942 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-23 22:10:50,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-23 22:10:51,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:51,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:51,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:52,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:52,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-23 22:10:54,798 INFO L321 Elim1Store]: treesize reduction 25, result has 49.0 percent of original size [2023-03-23 22:10:54,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 38 [2023-03-23 22:10:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 22:10:55,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 22:11:16,178 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:11:16,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 255 treesize of output 171 [2023-03-23 22:11:16,280 INFO L321 Elim1Store]: treesize reduction 9, result has 90.7 percent of original size [2023-03-23 22:11:16,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 232917 treesize of output 214804 [2023-03-23 22:11:16,958 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:11:16,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:11:17,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3466 treesize of output 3297 [2023-03-23 22:11:17,062 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:11:17,092 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:11:17,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3350 treesize of output 2452 [2023-03-23 22:11:17,163 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:11:17,196 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:11:17,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 2358 treesize of output 1946 [2023-03-23 22:14:23,323 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:14:23,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 255 treesize of output 171 [2023-03-23 22:14:23,395 INFO L321 Elim1Store]: treesize reduction 9, result has 90.7 percent of original size [2023-03-23 22:14:23,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 15449 treesize of output 14327 [2023-03-23 22:14:23,708 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:14:23,735 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:14:23,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3478 treesize of output 3311 [2023-03-23 22:14:23,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:14:23,829 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:14:23,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3348 treesize of output 2452 [2023-03-23 22:14:23,892 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-23 22:14:23,920 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-23 22:14:23,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 2405 treesize of output 1995 Received shutdown request... [2023-03-23 22:14:26,071 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 22:14:26,074 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-03-23 22:14:26,075 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-03-23 22:14:26,082 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 22:14:26,092 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 22:14:26,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 22:14:26,280 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 219 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-3-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-03-23 22:14:26,281 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-03-23 22:14:26,282 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-03-23 22:14:26,284 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1] [2023-03-23 22:14:26,286 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-03-23 22:14:26,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-23 22:14:26,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 10:14:26 BasicIcfg [2023-03-23 22:14:26,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-23 22:14:26,290 INFO L158 Benchmark]: Toolchain (without parser) took 535376.91ms. Allocated memory was 273.7MB in the beginning and 735.1MB in the end (delta: 461.4MB). Free memory was 234.0MB in the beginning and 400.6MB in the end (delta: -166.7MB). Peak memory consumption was 480.6MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,290 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-23 22:14:26,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 273.7MB. Free memory was 234.0MB in the beginning and 221.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.13ms. Allocated memory is still 273.7MB. Free memory was 221.9MB in the beginning and 219.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,291 INFO L158 Benchmark]: Boogie Preprocessor took 21.92ms. Allocated memory is still 273.7MB. Free memory was 219.8MB in the beginning and 218.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,291 INFO L158 Benchmark]: RCFGBuilder took 579.94ms. Allocated memory is still 273.7MB. Free memory was 218.2MB in the beginning and 188.3MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,291 INFO L158 Benchmark]: TraceAbstraction took 534565.93ms. Allocated memory was 273.7MB in the beginning and 735.1MB in the end (delta: 461.4MB). Free memory was 187.8MB in the beginning and 400.6MB in the end (delta: -212.8MB). Peak memory consumption was 434.4MB. Max. memory is 8.0GB. [2023-03-23 22:14:26,293 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 140.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 273.7MB. Free memory was 234.0MB in the beginning and 221.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.13ms. Allocated memory is still 273.7MB. Free memory was 221.9MB in the beginning and 219.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.92ms. Allocated memory is still 273.7MB. Free memory was 219.8MB in the beginning and 218.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 579.94ms. Allocated memory is still 273.7MB. Free memory was 218.2MB in the beginning and 188.3MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 534565.93ms. Allocated memory was 273.7MB in the beginning and 735.1MB in the end (delta: 461.4MB). Free memory was 187.8MB in the beginning and 400.6MB in the end (delta: -212.8MB). Peak memory consumption was 434.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 213161, independent: 72061, independent conditional: 1431, independent unconditional: 70630, dependent: 141100, dependent conditional: 1108, dependent unconditional: 139992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 74256, independent: 72061, independent conditional: 1431, independent unconditional: 70630, dependent: 2195, dependent conditional: 16, dependent unconditional: 2179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 74256, independent: 72061, independent conditional: 1431, independent unconditional: 70630, dependent: 2195, dependent conditional: 16, dependent unconditional: 2179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 74331, independent: 72061, independent conditional: 0, independent unconditional: 72061, dependent: 2270, dependent conditional: 75, dependent unconditional: 2195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 74331, independent: 72061, independent conditional: 0, independent unconditional: 72061, dependent: 2270, dependent conditional: 39, dependent unconditional: 2231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 74331, independent: 72061, independent conditional: 0, independent unconditional: 72061, dependent: 2270, dependent conditional: 39, dependent unconditional: 2231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3097, independent: 3015, independent conditional: 0, independent unconditional: 3015, dependent: 82, dependent conditional: 10, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3097, independent: 2997, independent conditional: 0, independent unconditional: 2997, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 100, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 82, dependent conditional: 10, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 82, dependent conditional: 10, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 319, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 254, dependent conditional: 45, dependent unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 74331, independent: 69046, independent conditional: 0, independent unconditional: 69046, dependent: 2188, dependent conditional: 29, dependent unconditional: 2159, unknown: 3097, unknown conditional: 10, unknown unconditional: 3087] , Statistics on independence cache: Total cache size (in pairs): 3097, Positive cache size: 3015, Positive conditional cache size: 0, Positive unconditional cache size: 3015, Negative cache size: 82, Negative conditional cache size: 10, Negative unconditional cache size: 72, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 9, Independence queries for same thread: 138905 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 219 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-3-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 219 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-3-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 219 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-3-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 178 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 534.4s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 212.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 93.0s InterpolantComputationTime, 2593 NumberOfCodeBlocks, 2585 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3444 ConstructedInterpolants, 96 QuantifiedInterpolants, 56377 SizeOfPredicates, 152 NumberOfNonLiveVariables, 2102 ConjunctsInSsa, 228 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 346/788 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown