/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 18:09:33,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 18:09:33,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 18:09:33,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 18:09:33,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 18:09:33,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 18:09:33,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 18:09:33,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 18:09:33,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 18:09:33,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 18:09:33,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 18:09:33,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 18:09:33,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 18:09:33,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 18:09:33,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 18:09:33,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 18:09:33,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 18:09:33,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 18:09:33,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 18:09:33,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 18:09:33,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 18:09:33,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 18:09:33,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 18:09:33,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 18:09:33,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 18:09:33,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 18:09:33,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 18:09:33,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 18:09:33,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 18:09:33,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 18:09:33,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 18:09:33,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 18:09:33,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 18:09:33,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 18:09:33,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 18:09:33,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 18:09:33,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 18:09:33,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 18:09:33,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 18:09:33,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 18:09:33,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 18:09:33,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 18:09:33,715 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 18:09:33,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 18:09:33,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 18:09:33,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 18:09:33,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 18:09:33,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 18:09:33,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 18:09:33,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 18:09:33,717 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 18:09:33,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 18:09:33,717 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 18:09:33,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 18:09:33,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 18:09:33,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 18:09:33,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 18:09:33,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 18:09:33,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 18:09:33,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 18:09:33,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 18:09:33,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 18:09:33,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 18:09:33,953 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 18:09:33,954 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 18:09:33,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-05-04 18:09:34,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d25d7b06/da0b5fb3d2e046ad8799790702d990cd/FLAG95491bb9a [2023-05-04 18:09:34,443 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 18:09:34,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-05-04 18:09:34,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d25d7b06/da0b5fb3d2e046ad8799790702d990cd/FLAG95491bb9a [2023-05-04 18:09:34,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d25d7b06/da0b5fb3d2e046ad8799790702d990cd [2023-05-04 18:09:34,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 18:09:34,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 18:09:34,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 18:09:34,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 18:09:34,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 18:09:34,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 06:09:34" (1/1) ... [2023-05-04 18:09:34,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b03d73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:34, skipping insertion in model container [2023-05-04 18:09:34,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 06:09:34" (1/1) ... [2023-05-04 18:09:34,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 18:09:34,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 18:09:35,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2947,2960] [2023-05-04 18:09:35,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 18:09:35,137 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 18:09:35,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2947,2960] [2023-05-04 18:09:35,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 18:09:35,199 INFO L208 MainTranslator]: Completed translation [2023-05-04 18:09:35,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35 WrapperNode [2023-05-04 18:09:35,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 18:09:35,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 18:09:35,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 18:09:35,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 18:09:35,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,242 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 151 [2023-05-04 18:09:35,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 18:09:35,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 18:09:35,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 18:09:35,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 18:09:35,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 18:09:35,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 18:09:35,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 18:09:35,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 18:09:35,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (1/1) ... [2023-05-04 18:09:35,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 18:09:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:35,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-04 18:09:35,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-04 18:09:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 18:09:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 18:09:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 18:09:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 18:09:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 18:09:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 18:09:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 18:09:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 18:09:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 18:09:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 18:09:35,345 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 18:09:35,426 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 18:09:35,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 18:09:35,641 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 18:09:35,739 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 18:09:35,739 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 18:09:35,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 06:09:35 BoogieIcfgContainer [2023-05-04 18:09:35,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 18:09:35,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 18:09:35,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 18:09:35,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 18:09:35,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 06:09:34" (1/3) ... [2023-05-04 18:09:35,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 06:09:35, skipping insertion in model container [2023-05-04 18:09:35,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 06:09:35" (2/3) ... [2023-05-04 18:09:35,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 06:09:35, skipping insertion in model container [2023-05-04 18:09:35,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 06:09:35" (3/3) ... [2023-05-04 18:09:35,749 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2023-05-04 18:09:35,756 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 18:09:35,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 18:09:35,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 18:09:35,763 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 18:09:35,828 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 18:09:35,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 18:09:35,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 18:09:35,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:35,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 18:09:35,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 18:09:35,950 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 18:09:35,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 18:09:35,982 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;@278cd815, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 18:09:35,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-04 18:09:36,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:36,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:36,263 INFO L85 PathProgramCache]: Analyzing trace with hash -221989944, now seen corresponding path program 1 times [2023-05-04 18:09:36,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:36,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892470724] [2023-05-04 18:09:36,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:36,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 18:09:36,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:36,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892470724] [2023-05-04 18:09:36,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892470724] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 18:09:36,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 18:09:36,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 18:09:36,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108433378] [2023-05-04 18:09:36,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 18:09:36,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 18:09:36,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:36,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 18:09:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 18:09:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:36,593 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:36,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:36,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:36,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 18:09:36,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash -72001615, now seen corresponding path program 1 times [2023-05-04 18:09:36,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:36,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863183164] [2023-05-04 18:09:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 18:09:37,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:37,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863183164] [2023-05-04 18:09:37,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863183164] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 18:09:37,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 18:09:37,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 18:09:37,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678554140] [2023-05-04 18:09:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 18:09:37,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 18:09:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 18:09:37,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 18:09:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,025 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:37,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:37,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:37,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 18:09:37,237 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:37,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:37,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1579187664, now seen corresponding path program 1 times [2023-05-04 18:09:37,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:37,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248105840] [2023-05-04 18:09:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:37,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:37,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248105840] [2023-05-04 18:09:37,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248105840] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 18:09:37,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 18:09:37,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 18:09:37,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708982744] [2023-05-04 18:09:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 18:09:37,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 18:09:37,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 18:09:37,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 18:09:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,569 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:37,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:37,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:37,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:37,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 18:09:37,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:37,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 572621781, now seen corresponding path program 1 times [2023-05-04 18:09:37,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:37,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38916803] [2023-05-04 18:09:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 18:09:37,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:37,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38916803] [2023-05-04 18:09:37,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38916803] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 18:09:37,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 18:09:37,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 18:09:37,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231900448] [2023-05-04 18:09:37,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 18:09:37,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 18:09:37,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:37,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 18:09:37,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 18:09:37,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:37,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:37,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:37,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:38,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 18:09:38,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:38,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1428129139, now seen corresponding path program 1 times [2023-05-04 18:09:38,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:38,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696031475] [2023-05-04 18:09:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 18:09:38,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:38,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696031475] [2023-05-04 18:09:38,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696031475] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:09:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126753066] [2023-05-04 18:09:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:38,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:38,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:38,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:09:38,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 18:09:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:38,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 52 conjunts are in the unsatisfiable core [2023-05-04 18:09:38,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:09:39,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:09:39,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:09:39,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:09:39,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-05-04 18:09:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:39,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:09:41,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:41,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 51 [2023-05-04 18:09:41,563 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:41,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 325 treesize of output 305 [2023-05-04 18:09:41,573 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:41,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 293 treesize of output 281 [2023-05-04 18:09:41,586 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:41,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 269 treesize of output 233 [2023-05-04 18:09:41,780 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:41,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 51 [2023-05-04 18:09:41,797 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-05-04 18:09:41,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 141 [2023-05-04 18:09:41,809 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-05-04 18:09:41,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 117 [2023-05-04 18:09:41,823 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-05-04 18:09:41,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 105 [2023-05-04 18:09:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:42,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126753066] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:09:42,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:09:42,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 28, 25] total 52 [2023-05-04 18:09:42,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441447417] [2023-05-04 18:09:42,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:09:42,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-05-04 18:09:42,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:42,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-05-04 18:09:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=2161, Unknown=26, NotChecked=0, Total=2652 [2023-05-04 18:09:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:42,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:42,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.711538461538462) internal successors, (297), 52 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:42,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:42,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:42,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:42,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:42,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:44,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:44,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 18:09:44,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 18:09:44,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:44,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:44,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1927670023, now seen corresponding path program 2 times [2023-05-04 18:09:44,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:44,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28715757] [2023-05-04 18:09:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:44,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 18:09:44,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:44,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28715757] [2023-05-04 18:09:44,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28715757] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:09:44,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242944960] [2023-05-04 18:09:44,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 18:09:44,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:44,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:09:44,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 18:09:45,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 18:09:45,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:09:45,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-05-04 18:09:45,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:09:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 18:09:45,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:09:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-04 18:09:45,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242944960] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:09:45,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:09:45,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 9 [2023-05-04 18:09:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214086391] [2023-05-04 18:09:45,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:09:45,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-04 18:09:45,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-04 18:09:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-05-04 18:09:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:45,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:45,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:45,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:45,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:45,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-04 18:09:45,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-05-04 18:09:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:09:45,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-04 18:09:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:45,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:45,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 710310541, now seen corresponding path program 1 times [2023-05-04 18:09:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875308396] [2023-05-04 18:09:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:48,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875308396] [2023-05-04 18:09:48,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875308396] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:09:48,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805153329] [2023-05-04 18:09:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:48,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:48,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:09:48,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 18:09:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:48,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 61 conjunts are in the unsatisfiable core [2023-05-04 18:09:48,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:09:50,139 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:50,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 15 [2023-05-04 18:09:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:50,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:09:51,517 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:09:51,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 78 [2023-05-04 18:09:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:09:52,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805153329] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:09:52,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:09:52,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 30, 30] total 82 [2023-05-04 18:09:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181389675] [2023-05-04 18:09:52,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:09:52,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2023-05-04 18:09:52,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:52,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2023-05-04 18:09:52,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=716, Invalid=5926, Unknown=0, NotChecked=0, Total=6642 [2023-05-04 18:09:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:52,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 4.439024390243903) internal successors, (364), 82 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:09:52,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-05-04 18:09:57,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:09:57,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-05-04 18:09:57,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 18:09:58,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:58,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:58,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash 940542615, now seen corresponding path program 2 times [2023-05-04 18:09:58,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:58,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915589475] [2023-05-04 18:09:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:58,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:09:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-05-04 18:09:58,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:09:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915589475] [2023-05-04 18:09:58,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915589475] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:09:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937406475] [2023-05-04 18:09:58,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 18:09:58,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:58,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:09:58,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:09:58,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 18:09:58,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 18:09:58,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:09:58,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 18:09:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:09:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-05-04 18:09:58,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:09:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-05-04 18:09:59,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937406475] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:09:59,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:09:59,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 16 [2023-05-04 18:09:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651056734] [2023-05-04 18:09:59,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:09:59,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-05-04 18:09:59,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:09:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-05-04 18:09:59,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-05-04 18:09:59,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:59,003 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:09:59,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.8125) internal successors, (173), 16 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:09:59,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2023-05-04 18:09:59,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-05-04 18:09:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:09:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-05-04 18:09:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:09:59,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 18:09:59,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:09:59,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:09:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:09:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash 15660797, now seen corresponding path program 3 times [2023-05-04 18:09:59,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:09:59,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468106970] [2023-05-04 18:09:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:09:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:09:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:00,110 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 18:10:00,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:10:00,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468106970] [2023-05-04 18:10:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468106970] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 18:10:00,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 18:10:00,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 18:10:00,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907821421] [2023-05-04 18:10:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 18:10:00,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 18:10:00,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:10:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 18:10:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 18:10:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:00,114 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:10:00,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:10:00,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:00,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:00,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:10:00,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 18:10:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:10:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:00,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 18:10:00,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:10:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:10:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash 712656924, now seen corresponding path program 4 times [2023-05-04 18:10:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:10:00,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667972727] [2023-05-04 18:10:00,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:10:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:10:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-05-04 18:10:01,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:10:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667972727] [2023-05-04 18:10:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667972727] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:10:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254591899] [2023-05-04 18:10:01,918 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 18:10:01,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:01,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:10:01,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:10:01,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 18:10:02,028 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 18:10:02,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:10:02,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 83 conjunts are in the unsatisfiable core [2023-05-04 18:10:02,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:10:04,653 INFO L356 Elim1Store]: treesize reduction 88, result has 7.4 percent of original size [2023-05-04 18:10:04,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 26 [2023-05-04 18:10:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:10:04,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:10:06,204 INFO L356 Elim1Store]: treesize reduction 36, result has 77.1 percent of original size [2023-05-04 18:10:06,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 152 [2023-05-04 18:10:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:10:08,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254591899] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:10:08,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:10:08,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 37, 36] total 85 [2023-05-04 18:10:08,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835266379] [2023-05-04 18:10:08,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:10:08,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2023-05-04 18:10:08,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:10:08,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2023-05-04 18:10:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=712, Invalid=6428, Unknown=0, NotChecked=0, Total=7140 [2023-05-04 18:10:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:08,669 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:10:08,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 5.258823529411765) internal successors, (447), 85 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 18:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-05-04 18:10:14,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 18:10:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:14,582 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:10:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:10:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1802913572, now seen corresponding path program 5 times [2023-05-04 18:10:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:10:14,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559921696] [2023-05-04 18:10:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:10:14,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:10:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-05-04 18:10:16,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:10:16,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559921696] [2023-05-04 18:10:16,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559921696] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:10:16,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865607761] [2023-05-04 18:10:16,373 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 18:10:16,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:16,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:10:16,374 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:10:16,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 18:10:16,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-04 18:10:16,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:10:16,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 96 conjunts are in the unsatisfiable core [2023-05-04 18:10:16,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:10:20,436 INFO L356 Elim1Store]: treesize reduction 189, result has 5.0 percent of original size [2023-05-04 18:10:20,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 35 [2023-05-04 18:10:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:10:20,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:10:23,374 INFO L356 Elim1Store]: treesize reduction 72, result has 75.1 percent of original size [2023-05-04 18:10:23,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 142 treesize of output 256 [2023-05-04 18:10:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:10:27,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865607761] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:10:27,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:10:27,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 44, 44] total 108 [2023-05-04 18:10:27,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334176238] [2023-05-04 18:10:27,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:10:27,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2023-05-04 18:10:27,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:10:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2023-05-04 18:10:27,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=981, Invalid=10575, Unknown=0, NotChecked=0, Total=11556 [2023-05-04 18:10:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:27,032 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:10:27,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 4.861111111111111) internal successors, (525), 108 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2023-05-04 18:10:27,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:10:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:10:35,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 18:10:35,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:35,992 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:10:35,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:10:35,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1181860316, now seen corresponding path program 6 times [2023-05-04 18:10:35,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:10:35,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817026229] [2023-05-04 18:10:35,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:10:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:10:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 448 proven. 120 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-05-04 18:10:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:10:36,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817026229] [2023-05-04 18:10:36,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817026229] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:10:36,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281717139] [2023-05-04 18:10:36,905 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 18:10:36,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:36,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:10:36,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:10:36,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 18:10:37,272 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-05-04 18:10:37,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:10:37,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 54 conjunts are in the unsatisfiable core [2023-05-04 18:10:37,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:10:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 360 proven. 264 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-05-04 18:10:38,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:10:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 523 proven. 101 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-05-04 18:10:39,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281717139] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:10:39,809 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:10:39,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 34, 24] total 79 [2023-05-04 18:10:39,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191166565] [2023-05-04 18:10:39,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:10:39,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-05-04 18:10:39,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:10:39,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-05-04 18:10:39,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1014, Invalid=5148, Unknown=0, NotChecked=0, Total=6162 [2023-05-04 18:10:39,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:39,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:10:39,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 8.354430379746836) internal successors, (660), 79 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:10:39,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:10:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:10:40,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-05-04 18:10:40,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 18:10:41,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-05-04 18:10:41,148 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:10:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:10:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 285629732, now seen corresponding path program 7 times [2023-05-04 18:10:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:10:41,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968838012] [2023-05-04 18:10:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:10:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:10:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 463 proven. 240 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-05-04 18:10:42,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:10:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968838012] [2023-05-04 18:10:42,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968838012] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:10:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468530255] [2023-05-04 18:10:42,383 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-04 18:10:42,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:10:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:10:42,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:10:42,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 18:10:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:10:42,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 58 conjunts are in the unsatisfiable core [2023-05-04 18:10:42,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:10:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 94 proven. 658 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 18:10:44,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:10:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 533 proven. 209 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 18:10:46,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468530255] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:10:46,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:10:46,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 47, 39] total 111 [2023-05-04 18:10:46,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429350584] [2023-05-04 18:10:46,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:10:46,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2023-05-04 18:10:46,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:10:46,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2023-05-04 18:10:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1515, Invalid=10695, Unknown=0, NotChecked=0, Total=12210 [2023-05-04 18:10:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:46,837 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:10:46,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 7.225225225225225) internal successors, (802), 111 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:46,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-05-04 18:10:46,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:10:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:10:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:10:48,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:10:48,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-05-04 18:10:48,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-04 18:10:48,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 18:10:48,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-05-04 18:10:48,585 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:10:48,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:10:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1696449388, now seen corresponding path program 8 times [2023-05-04 18:10:48,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:10:48,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777356065] [2023-05-04 18:10:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:10:48,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:10:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:11:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 224 proven. 580 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:11:02,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:11:02,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777356065] [2023-05-04 18:11:02,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777356065] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:11:02,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409908559] [2023-05-04 18:11:02,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 18:11:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:11:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:11:02,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:11:02,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 18:11:02,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 18:11:02,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:11:02,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 186 conjunts are in the unsatisfiable core [2023-05-04 18:11:02,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:11:19,834 INFO L356 Elim1Store]: treesize reduction 1096, result has 2.2 percent of original size [2023-05-04 18:11:19,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 70 [2023-05-04 18:11:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 11 proven. 793 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:11:20,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:11:36,145 INFO L356 Elim1Store]: treesize reduction 240, result has 78.6 percent of original size [2023-05-04 18:11:36,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 276 treesize of output 946 [2023-05-04 18:11:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 4 proven. 800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 18:11:48,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409908559] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 18:11:48,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 18:11:48,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 82, 82] total 240 [2023-05-04 18:11:48,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799255254] [2023-05-04 18:11:48,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 18:11:48,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 240 states [2023-05-04 18:11:48,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 18:11:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 240 interpolants. [2023-05-04 18:11:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5715, Invalid=51645, Unknown=0, NotChecked=0, Total=57360 [2023-05-04 18:11:48,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:11:48,721 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 18:11:48,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 240 states, 240 states have (on average 3.691666666666667) internal successors, (886), 240 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 18:11:48,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:11:48,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-05-04 18:11:48,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:12:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 18:12:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:12:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-05-04 18:12:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-05-04 18:12:00,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 18:12:00,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-05-04 18:12:00,225 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 18:12:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 18:12:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2007221212, now seen corresponding path program 9 times [2023-05-04 18:12:00,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 18:12:00,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866668699] [2023-05-04 18:12:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 18:12:00,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 18:12:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 18:12:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 12 proven. 536 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-05-04 18:12:04,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 18:12:04,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866668699] [2023-05-04 18:12:04,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866668699] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 18:12:04,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258790418] [2023-05-04 18:12:04,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 18:12:04,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 18:12:04,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 18:12:04,103 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 18:12:04,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 18:12:04,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-05-04 18:12:04,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 18:12:04,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 153 conjunts are in the unsatisfiable core [2023-05-04 18:12:04,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 18:12:05,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:12:05,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:12:05,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 18:12:14,240 INFO L356 Elim1Store]: treesize reduction 749, result has 2.9 percent of original size [2023-05-04 18:12:14,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 202 treesize of output 72 [2023-05-04 18:12:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 98 proven. 502 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-05-04 18:12:14,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 18:12:24,975 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~front~0 4)) (.cse1 (* c_~back~0 4))) (and (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) c_~queue~0.base))) (or (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 4)) 1) 0)) (not (< 1 (+ (select .cse0 (+ .cse2 ~queue~0.offset 28)) c_~sum~0 (select .cse0 (+ .cse2 16 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset 24)) (select .cse0 (+ .cse2 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset 20)) (select .cse0 (+ .cse2 ~queue~0.offset 4)) (select .cse0 (+ .cse2 ~queue~0.offset 12)) (select .cse0 (+ .cse2 ~queue~0.offset 8))))) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 8)) 1)) (not (= (select .cse0 (+ 16 .cse1 ~queue~0.offset)) 1))))) (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) c_~queue~0.base))) (or (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 4)) 1) 0)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 8)) 1)) (not (< (+ (select .cse3 (+ .cse2 ~queue~0.offset 28)) c_~sum~0 (select .cse3 (+ .cse2 16 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset 24)) (select .cse3 (+ .cse2 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset 20)) (select .cse3 (+ .cse2 ~queue~0.offset 4)) (select .cse3 (+ .cse2 ~queue~0.offset 12)) (select .cse3 (+ .cse2 ~queue~0.offset 8))) 0)) (not (= (select .cse3 (+ 16 .cse1 ~queue~0.offset)) 1))))))) is different from false [2023-05-04 18:12:25,201 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~front~0 4)) (.cse1 (* c_~back~0 4))) (and (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_main_#t~ret10#1.base|))) (or (not (= (select .cse0 (+ 16 .cse1 ~queue~0.offset)) 1)) (not (< (+ (select .cse0 (+ .cse2 16 ~queue~0.offset)) c_~sum~0 (select .cse0 (+ .cse2 ~queue~0.offset 8)) (select .cse0 (+ .cse2 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset 12)) (select .cse0 (+ .cse2 ~queue~0.offset 24)) (select .cse0 (+ .cse2 ~queue~0.offset 4)) (select .cse0 (+ .cse2 ~queue~0.offset 20)) (select .cse0 (+ .cse2 ~queue~0.offset 28))) 0)) (not (= (+ 1 (select .cse0 (+ .cse1 ~queue~0.offset 20))) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 4)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 8)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 12)) 1) 0))))) (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_main_#t~ret10#1.base|))) (or (not (= (select .cse3 (+ 16 .cse1 ~queue~0.offset)) 1)) (not (= (+ 1 (select .cse3 (+ .cse1 ~queue~0.offset 20))) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 4)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 8)) 1)) (not (< 1 (+ (select .cse3 (+ .cse2 16 ~queue~0.offset)) c_~sum~0 (select .cse3 (+ .cse2 ~queue~0.offset 8)) (select .cse3 (+ .cse2 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset 12)) (select .cse3 (+ .cse2 ~queue~0.offset 24)) (select .cse3 (+ .cse2 ~queue~0.offset 4)) (select .cse3 (+ .cse2 ~queue~0.offset 20)) (select .cse3 (+ .cse2 ~queue~0.offset 28))))) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 12)) 1) 0))))))) is different from false [2023-05-04 18:12:25,327 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~front~0 4)) (.cse1 (* c_~back~0 4))) (and (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (or (not (= (select .cse0 (+ 16 .cse1 ~queue~0.offset)) 1)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 8)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (= 0 (+ (select .cse0 (+ .cse1 ~queue~0.offset 4)) 1))) (not (= (select .cse0 (+ .cse1 ~queue~0.offset)) 1)) (not (< 1 (+ (select .cse0 (+ .cse2 ~queue~0.offset 8)) (select .cse0 (+ .cse2 ~queue~0.offset 4)) c_~sum~0 (select .cse0 (+ .cse2 ~queue~0.offset 28)) (select .cse0 (+ .cse2 ~queue~0.offset 24)) (select .cse0 (+ .cse2 ~queue~0.offset 12)) (select .cse0 (+ .cse2 ~queue~0.offset 20)) (select .cse0 (+ .cse2 16 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset))))) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 28)) 1) 0))))) (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (or (not (= (select .cse3 (+ 16 .cse1 ~queue~0.offset)) 1)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 8)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (< (+ (select .cse3 (+ .cse2 ~queue~0.offset 8)) (select .cse3 (+ .cse2 ~queue~0.offset 4)) c_~sum~0 (select .cse3 (+ .cse2 ~queue~0.offset 28)) (select .cse3 (+ .cse2 ~queue~0.offset 24)) (select .cse3 (+ .cse2 ~queue~0.offset 12)) (select .cse3 (+ .cse2 ~queue~0.offset 20)) (select .cse3 (+ .cse2 16 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset))) 0)) (not (= 0 (+ (select .cse3 (+ .cse1 ~queue~0.offset 4)) 1))) (not (= (select .cse3 (+ .cse1 ~queue~0.offset)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 28)) 1) 0))))))) is different from false [2023-05-04 18:12:25,405 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~front~0 4)) (.cse1 (* c_~back~0 4))) (and (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= 0 (+ (select .cse0 (+ .cse1 ~queue~0.offset 4)) 1))) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (< (+ c_~sum~0 (select .cse0 (+ .cse2 ~queue~0.offset 4)) (select .cse0 (+ .cse2 ~queue~0.offset 8)) (select .cse0 (+ .cse2 ~queue~0.offset 28)) (select .cse0 (+ .cse2 16 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset 20)) (select .cse0 (+ .cse2 ~queue~0.offset 24)) (select .cse0 (+ .cse2 ~queue~0.offset)) (select .cse0 (+ .cse2 ~queue~0.offset 12))) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset)) 1)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse0 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (= (select .cse0 (+ .cse1 ~queue~0.offset 8)) 1)) (not (= (select .cse0 (+ 16 .cse1 ~queue~0.offset)) 1))))) (forall ((v_ArrVal_439 (Array Int Int)) (~queue~0.offset Int) (v_ArrVal_440 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_439) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_440) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= 0 (+ (select .cse3 (+ .cse1 ~queue~0.offset 4)) 1))) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 28)) 1) 0)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 20)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset)) 1)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 24)) 1)) (not (= (+ (select .cse3 (+ .cse1 ~queue~0.offset 12)) 1) 0)) (not (= (select .cse3 (+ .cse1 ~queue~0.offset 8)) 1)) (not (< 1 (+ c_~sum~0 (select .cse3 (+ .cse2 ~queue~0.offset 4)) (select .cse3 (+ .cse2 ~queue~0.offset 8)) (select .cse3 (+ .cse2 ~queue~0.offset 28)) (select .cse3 (+ .cse2 16 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset 20)) (select .cse3 (+ .cse2 ~queue~0.offset 24)) (select .cse3 (+ .cse2 ~queue~0.offset)) (select .cse3 (+ .cse2 ~queue~0.offset 12))))) (not (= (select .cse3 (+ 16 .cse1 ~queue~0.offset)) 1))))))) is different from false [2023-05-04 18:12:25,755 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:12:25,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 484 treesize of output 304 [2023-05-04 18:12:26,300 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:12:26,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 955 treesize of output 1693 [2023-05-04 18:12:26,830 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:12:26,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 813 treesize of output 1473 [2023-05-04 18:12:27,483 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 18:12:27,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 593 treesize of output 1363 [2023-05-04 18:14:46,180 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-04 18:14:46,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 18:14:46,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 18:14:46,381 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-04 18:14:46,383 INFO L158 Benchmark]: Toolchain (without parser) took 311565.12ms. Allocated memory was 206.6MB in the beginning and 1.2GB in the end (delta: 960.5MB). Free memory was 146.0MB in the beginning and 883.1MB in the end (delta: -737.1MB). Peak memory consumption was 764.3MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,383 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 206.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 18:14:46,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.53ms. Allocated memory was 206.6MB in the beginning and 285.2MB in the end (delta: 78.6MB). Free memory was 145.7MB in the beginning and 252.7MB in the end (delta: -106.9MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.74ms. Allocated memory is still 285.2MB. Free memory was 252.7MB in the beginning and 250.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,386 INFO L158 Benchmark]: Boogie Preprocessor took 23.78ms. Allocated memory is still 285.2MB. Free memory was 250.6MB in the beginning and 249.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,386 INFO L158 Benchmark]: RCFGBuilder took 473.33ms. Allocated memory is still 285.2MB. Free memory was 249.0MB in the beginning and 228.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,386 INFO L158 Benchmark]: TraceAbstraction took 310639.22ms. Allocated memory was 285.2MB in the beginning and 1.2GB in the end (delta: 881.9MB). Free memory was 227.0MB in the beginning and 883.1MB in the end (delta: -656.1MB). Peak memory consumption was 766.0MB. Max. memory is 8.0GB. [2023-05-04 18:14:46,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 206.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 378.53ms. Allocated memory was 206.6MB in the beginning and 285.2MB in the end (delta: 78.6MB). Free memory was 145.7MB in the beginning and 252.7MB in the end (delta: -106.9MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.74ms. Allocated memory is still 285.2MB. Free memory was 252.7MB in the beginning and 250.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.78ms. Allocated memory is still 285.2MB. Free memory was 250.6MB in the beginning and 249.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 473.33ms. Allocated memory is still 285.2MB. Free memory was 249.0MB in the beginning and 228.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 310639.22ms. Allocated memory was 285.2MB in the beginning and 1.2GB in the end (delta: 881.9MB). Free memory was 227.0MB in the beginning and 883.1MB in the end (delta: -656.1MB). Peak memory consumption was 766.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-05-04 18:14:46,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-04 18:14:46,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...