/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 16:18:08,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 16:18:08,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 16:18:08,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 16:18:08,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 16:18:08,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 16:18:08,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 16:18:08,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 16:18:08,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 16:18:08,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 16:18:08,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 16:18:08,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 16:18:08,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 16:18:08,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 16:18:08,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 16:18:08,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 16:18:08,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 16:18:08,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 16:18:08,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 16:18:08,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 16:18:08,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 16:18:08,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 16:18:08,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 16:18:08,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 16:18:08,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 16:18:08,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 16:18:08,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 16:18:08,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 16:18:08,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 16:18:08,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-05-04 16:18:08,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 16:18:08,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 16:18:08,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 16:18:08,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 16:18:08,787 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 16:18:08,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 16:18:08,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 16:18:08,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 16:18:08,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 16:18:08,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 16:18:08,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 16:18:08,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 16:18:08,789 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 16:18:08,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 16:18:08,790 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 16:18:08,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 16:18:08,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 16:18:08,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 16:18:08,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 16:18:08,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 16:18:08,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 16:18:08,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 16:18:08,793 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 16:18:08,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 16:18:08,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 16:18:08,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 16:18:08,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 16:18:08,998 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 16:18:08,999 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 16:18:09,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-05-04 16:18:09,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6e4cd436/35fde3a1d6334eae9457214d86125f4e/FLAGb396c60c1 [2023-05-04 16:18:09,480 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 16:18:09,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-05-04 16:18:09,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6e4cd436/35fde3a1d6334eae9457214d86125f4e/FLAGb396c60c1 [2023-05-04 16:18:09,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6e4cd436/35fde3a1d6334eae9457214d86125f4e [2023-05-04 16:18:09,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 16:18:09,819 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 16:18:09,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 16:18:09,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 16:18:09,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 16:18:09,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:18:09" (1/1) ... [2023-05-04 16:18:09,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efa3b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:09, skipping insertion in model container [2023-05-04 16:18:09,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:18:09" (1/1) ... [2023-05-04 16:18:09,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 16:18:09,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 16:18:10,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-05-04 16:18:10,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-05-04 16:18:10,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-05-04 16:18:10,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 16:18:10,215 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 16:18:10,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-05-04 16:18:10,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-05-04 16:18:10,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-05-04 16:18:10,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 16:18:10,302 INFO L208 MainTranslator]: Completed translation [2023-05-04 16:18:10,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10 WrapperNode [2023-05-04 16:18:10,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 16:18:10,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 16:18:10,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 16:18:10,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 16:18:10,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,372 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2023-05-04 16:18:10,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 16:18:10,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 16:18:10,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 16:18:10,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 16:18:10,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 16:18:10,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 16:18:10,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 16:18:10,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 16:18:10,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (1/1) ... [2023-05-04 16:18:10,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 16:18:10,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:10,430 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 16:18:10,460 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 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-05-04 16:18:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-05-04 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-05-04 16:18:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-05-04 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-04 16:18:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 16:18:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 16:18:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 16:18:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-05-04 16:18:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 16:18:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 16:18:10,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 16:18:10,476 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 16:18:10,630 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 16:18:10,632 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 16:18:10,862 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 16:18:10,870 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 16:18:10,870 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 16:18:10,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:18:10 BoogieIcfgContainer [2023-05-04 16:18:10,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 16:18:10,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 16:18:10,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 16:18:10,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 16:18:10,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 04:18:09" (1/3) ... [2023-05-04 16:18:10,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336fbd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:18:10, skipping insertion in model container [2023-05-04 16:18:10,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:18:10" (2/3) ... [2023-05-04 16:18:10,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336fbd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:18:10, skipping insertion in model container [2023-05-04 16:18:10,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:18:10" (3/3) ... [2023-05-04 16:18:10,884 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2023-05-04 16:18:10,892 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 16:18:10,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 16:18:10,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-05-04 16:18:10,900 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 16:18:11,021 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 16:18:11,058 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:11,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 16:18:11,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:11,065 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 16:18:11,092 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 16:18:11,112 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 16:18:11,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2023-05-04 16:18:11,149 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;@11171749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:11,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-05-04 16:18:12,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash 70785475, now seen corresponding path program 1 times [2023-05-04 16:18:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:12,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369860733] [2023-05-04 16:18:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:12,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:12,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369860733] [2023-05-04 16:18:12,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369860733] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:12,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:12,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 16:18:12,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838039914] [2023-05-04 16:18:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:12,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 16:18:12,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:12,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 16:18:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 16:18:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:12,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:12,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:12,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:12,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 16:18:12,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 957860454, now seen corresponding path program 1 times [2023-05-04 16:18:12,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:12,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118489631] [2023-05-04 16:18:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:12,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:13,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:13,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118489631] [2023-05-04 16:18:13,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118489631] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:13,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:13,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 16:18:13,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913098182] [2023-05-04 16:18:13,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:13,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 16:18:13,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:13,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 16:18:13,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 16:18:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,006 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:13,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:13,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 16:18:13,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:13,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:13,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1080388472, now seen corresponding path program 1 times [2023-05-04 16:18:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:13,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228253735] [2023-05-04 16:18:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:13,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:13,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228253735] [2023-05-04 16:18:13,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228253735] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:13,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:13,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 16:18:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060421737] [2023-05-04 16:18:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:13,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 16:18:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:13,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 16:18:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 16:18:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,349 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:13,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:13,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 16:18:13,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash -416251487, now seen corresponding path program 1 times [2023-05-04 16:18:13,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:13,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759092656] [2023-05-04 16:18:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:13,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:13,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759092656] [2023-05-04 16:18:13,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759092656] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:13,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:13,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 16:18:13,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432138940] [2023-05-04 16:18:13,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:13,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 16:18:13,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 16:18:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 16:18:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,665 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:13,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:13,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 16:18:13,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash 768178448, now seen corresponding path program 1 times [2023-05-04 16:18:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:13,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209984254] [2023-05-04 16:18:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:13,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:13,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:18:13,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13288264] [2023-05-04 16:18:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:13,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:13,814 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 16:18:13,836 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 16:18:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:13,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 16:18:13,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:18:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:14,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 16:18:14,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:14,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209984254] [2023-05-04 16:18:14,168 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:18:14,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13288264] [2023-05-04 16:18:14,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13288264] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:14,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:14,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 16:18:14,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639819327] [2023-05-04 16:18:14,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:14,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 16:18:14,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:14,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 16:18:14,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 16:18:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,171 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:14,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:14,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:14,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:18:14,243 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 16:18:14,439 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 16:18:14,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash 675875768, now seen corresponding path program 1 times [2023-05-04 16:18:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:14,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961817256] [2023-05-04 16:18:14,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:14,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:14,462 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:18:14,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966375414] [2023-05-04 16:18:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:14,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:14,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:14,465 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 16:18:14,503 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 16:18:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:14,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-04 16:18:14,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:18:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:14,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 16:18:14,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:14,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961817256] [2023-05-04 16:18:14,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:18:14,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966375414] [2023-05-04 16:18:14,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966375414] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:14,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:14,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 16:18:14,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794871834] [2023-05-04 16:18:14,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:14,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 16:18:14,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:14,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 16:18:14,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 16:18:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:14,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:14,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:14,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:18:14,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:18:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 16:18:14,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 16:18:15,029 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 16:18:15,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:15,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:15,030 INFO L85 PathProgramCache]: Analyzing trace with hash 977497261, now seen corresponding path program 1 times [2023-05-04 16:18:15,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:15,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441170782] [2023-05-04 16:18:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:15,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:15,051 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:18:15,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588192793] [2023-05-04 16:18:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:15,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:15,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:15,052 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 16:18:15,076 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 16:18:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:15,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 16:18:15,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:18:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-04 16:18:15,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 16:18:15,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:15,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441170782] [2023-05-04 16:18:15,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:18:15,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588192793] [2023-05-04 16:18:15,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588192793] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:15,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:15,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 16:18:15,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003006114] [2023-05-04 16:18:15,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:15,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 16:18:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:15,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 16:18:15,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 16:18:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:15,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:15,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 16:18:15,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 16:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-05-04 16:18:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-05-04 16:18:21,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-05-04 16:18:21,557 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 16:18:21,563 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-05-04 16:18:21,564 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE,SAFE (1/3) [2023-05-04 16:18:21,567 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:21,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 16:18:21,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:21,572 INFO L229 MonitoredProcess]: Starting monitored process 6 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 16:18:21,581 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 16:18:21,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 16:18:21,583 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;@11171749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:21,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-05-04 16:18:21,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-05-04 16:18:23,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-05-04 16:18:23,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-05-04 16:18:23,886 INFO L444 BasicCegarLoop]: Path program histogram: [] [2023-05-04 16:18:23,887 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2023-05-04 16:18:23,889 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:23,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 16:18:23,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:23,894 INFO L229 MonitoredProcess]: Starting monitored process 7 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 16:18:23,897 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 16:18:23,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork1 ======== [2023-05-04 16:18:23,898 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;@11171749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 16:18:23,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 16:18:23,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-05-04 16:18:23,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:23,955 INFO L85 PathProgramCache]: Analyzing trace with hash -659862512, now seen corresponding path program 1 times [2023-05-04 16:18:23,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059160636] [2023-05-04 16:18:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:23,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:23,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:23,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059160636] [2023-05-04 16:18:23,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059160636] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:23,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:23,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 16:18:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644360744] [2023-05-04 16:18:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:23,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 16:18:23,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 16:18:23,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 16:18:23,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:23,988 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:23,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:23,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:23,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 16:18:23,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:23,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:23,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1019141001, now seen corresponding path program 1 times [2023-05-04 16:18:23,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:23,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303890853] [2023-05-04 16:18:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:23,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:24,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:24,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303890853] [2023-05-04 16:18:24,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303890853] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:24,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:24,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 16:18:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651503997] [2023-05-04 16:18:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:24,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 16:18:24,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 16:18:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 16:18:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:24,049 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:24,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:24,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:24,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 16:18:25,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:25,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1482266053, now seen corresponding path program 1 times [2023-05-04 16:18:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:25,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450629084] [2023-05-04 16:18:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:25,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:25,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:25,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450629084] [2023-05-04 16:18:25,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450629084] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:25,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:25,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 16:18:25,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933364266] [2023-05-04 16:18:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:25,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 16:18:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:25,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 16:18:25,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 16:18:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,312 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:25,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:25,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-05-04 16:18:25,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:25,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:25,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1657403214, now seen corresponding path program 1 times [2023-05-04 16:18:25,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:25,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443255795] [2023-05-04 16:18:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:25,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:25,461 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 16:18:25,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443255795] [2023-05-04 16:18:25,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443255795] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:18:25,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:18:25,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 16:18:25,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275442414] [2023-05-04 16:18:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:18:25,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 16:18:25,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 16:18:25,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-05-04 16:18:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,464 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:25,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 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 16:18:25,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:18:25,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-04 16:18:25,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1833922967, now seen corresponding path program 1 times [2023-05-04 16:18:25,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:25,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671912821] [2023-05-04 16:18:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:25,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:25,525 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:18:25,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697466399] [2023-05-04 16:18:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:25,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:25,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:25,527 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 16:18:25,553 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 16:18:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:25,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 16:18:25,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:18:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:26,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:18:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:18:27,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671912821] [2023-05-04 16:18:27,059 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:18:27,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697466399] [2023-05-04 16:18:27,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697466399] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 16:18:27,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 16:18:27,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2023-05-04 16:18:27,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579484428] [2023-05-04 16:18:27,060 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 16:18:27,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-04 16:18:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:18:27,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-04 16:18:27,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-05-04 16:18:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:27,061 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:18:27,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.266666666666667) internal successors, (169), 15 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:18:27,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:27,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:27,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:27,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:18:27,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:18:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:18:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:18:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 16:18:27,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-05-04 16:18:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:27,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:18:27,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:18:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash 410554253, now seen corresponding path program 1 times [2023-05-04 16:18:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:18:27,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053970382] [2023-05-04 16:18:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:18:27,826 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:18:27,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057861828] [2023-05-04 16:18:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:18:27,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:18:27,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:18:27,828 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 16:18:27,848 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 16:18:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:18:28,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 34 conjunts are in the unsatisfiable core [2023-05-04 16:18:28,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:18:28,212 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 7 treesize of output 6 [2023-05-04 16:18:28,271 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-05-04 16:18:28,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-05-04 16:18:28,304 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-05-04 16:18:28,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-05-04 16:18:28,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:18:28,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:18:28,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 52 treesize of output 45 [2023-05-04 16:18:28,861 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 52 treesize of output 46 [2023-05-04 16:18:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:18:28,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:19:37,641 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 90 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:20:02,325 WARN L233 SmtUtils]: Spent 18.30s on a formula simplification. DAG size of input: 71 DAG size of output: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:20:21,294 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:20:23,830 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_t1Thread1of1ForFork0_~i~0#1| 256))) (let ((.cse0 (<= .cse1 127))) (and (or (not .cse0) (and (forall ((v_ArrVal_490 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (< aux_mod_~first~0_40 0) (< 2147483647 aux_mod_~first~0_40) (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (= |c_t1Thread1of1ForFork0_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) .cse1) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296)))) (< 2147483647 aux_mod_~next~0_24) (< aux_mod_~next~0_24 0))))) (forall ((v_ArrVal_490 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (<= aux_mod_~first~0_40 2147483647) (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (= |c_t1Thread1of1ForFork0_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) .cse1) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296) (- 4294967296)))) (< 2147483647 aux_mod_~next~0_24) (< aux_mod_~next~0_24 0))) (<= 4294967296 aux_mod_~first~0_40))))) (or (forall ((v_ArrVal_490 (Array Int Int)) (|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int) (aux_mod_~first~0_40 Int)) (or (< aux_mod_~first~0_40 0) (< 2147483647 aux_mod_~first~0_40) (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) (+ .cse1 (- 256))) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296))) |c_t1Thread1of1ForFork0_~i~0#1|) (< 2147483647 aux_mod_~next~0_24) (< aux_mod_~next~0_24 0))) .cse0)))) is different from false [2023-05-04 16:20:24,173 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_490 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (< 2147483647 aux_mod_~next~0_24) (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) 0) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296) (- 4294967296))) 0) (< aux_mod_~next~0_24 0))) (<= aux_mod_~first~0_40 2147483647) (<= 4294967296 aux_mod_~first~0_40))) (forall ((v_ArrVal_490 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (< aux_mod_~first~0_40 0) (< 2147483647 aux_mod_~first~0_40) (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) 0) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296))) 0) (< 2147483647 aux_mod_~next~0_24) (< aux_mod_~next~0_24 0)))))) is different from false [2023-05-04 16:20:24,456 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (<= aux_mod_~first~0_40 2147483647) (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (< 2147483647 aux_mod_~next~0_24) (< aux_mod_~next~0_24 0) (= (select (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_489) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) 0) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296) (- 4294967296))) 0))) (<= 4294967296 aux_mod_~first~0_40))) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int)) (aux_mod_~first~0_40 Int)) (or (< aux_mod_~first~0_40 0) (< 2147483647 aux_mod_~first~0_40) (forall ((|~#buffer~0.offset| Int) (aux_mod_~next~0_24 Int)) (or (< 2147483647 aux_mod_~next~0_24) (= (select (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_489) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_490) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| (mod aux_mod_~next~0_24 4294967296)) 0) (+ |~#buffer~0.offset| (mod aux_mod_~first~0_40 4294967296))) 0) (< aux_mod_~next~0_24 0)))))) is different from false [2023-05-04 16:20:28,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2023-05-04 16:20:28,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2023-05-04 16:20:28,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2023-05-04 16:20:28,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 98 [2023-05-04 16:20:28,402 INFO L356 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-05-04 16:20:28,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 22 [2023-05-04 16:20:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-05-04 16:20:28,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:20:28,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053970382] [2023-05-04 16:20:28,408 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:20:28,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057861828] [2023-05-04 16:20:28,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057861828] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 16:20:28,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 16:20:28,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 30 [2023-05-04 16:20:28,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902038895] [2023-05-04 16:20:28,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 16:20:28,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-04 16:20:28,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:20:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-04 16:20:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=601, Unknown=15, NotChecked=156, Total=870 [2023-05-04 16:20:28,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:20:28,411 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:20:28,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.566666666666666) internal successors, (197), 30 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:20:28,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:20:28,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:20:28,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:20:28,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:20:28,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 16:20:28,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:01,094 WARN L233 SmtUtils]: Spent 32.52s on a formula simplification. DAG size of input: 60 DAG size of output: 45 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:21:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 16:21:01,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:01,776 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 16:21:01,958 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,SelfDestructingSolverStorable12 [2023-05-04 16:21:01,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:21:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:21:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -559484506, now seen corresponding path program 1 times [2023-05-04 16:21:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:21:01,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311707876] [2023-05-04 16:21:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:21:01,975 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:21:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823452775] [2023-05-04 16:21:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:01,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:21:01,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:21:01,976 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 16:21:01,977 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 16:21:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:21:02,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 16:21:02,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:21:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 16:21:02,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:21:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 16:21:02,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:21:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311707876] [2023-05-04 16:21:02,145 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:21:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823452775] [2023-05-04 16:21:02,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823452775] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-04 16:21:02,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 16:21:02,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-05-04 16:21:02,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476275843] [2023-05-04 16:21:02,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:21:02,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 16:21:02,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:21:02,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 16:21:02,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 16:21:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,147 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:21:02,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:02,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-05-04 16:21:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,365 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 16:21:02,544 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,SelfDestructingSolverStorable13 [2023-05-04 16:21:02,545 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:21:02,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:21:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1872152561, now seen corresponding path program 1 times [2023-05-04 16:21:02,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:21:02,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309759228] [2023-05-04 16:21:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:02,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:21:02,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:21:02,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463390742] [2023-05-04 16:21:02,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:02,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:21:02,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:21:02,572 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 16:21:02,591 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 16:21:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:21:02,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 16:21:02,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:21:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:21:02,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 16:21:02,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:21:02,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309759228] [2023-05-04 16:21:02,949 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:21:02,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463390742] [2023-05-04 16:21:02,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463390742] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 16:21:02,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 16:21:02,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 16:21:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154041865] [2023-05-04 16:21:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 16:21:02,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 16:21:02,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:21:02,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 16:21:02,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 16:21:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,950 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:21:02,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:02,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 16:21:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:03,114 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 16:21:03,299 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,SelfDestructingSolverStorable14 [2023-05-04 16:21:03,299 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:21:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:21:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2067796682, now seen corresponding path program 1 times [2023-05-04 16:21:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:21:03,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942880794] [2023-05-04 16:21:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:21:03,320 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:21:03,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689135111] [2023-05-04 16:21:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:21:03,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:21:03,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:21:03,322 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 16:21:03,367 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 16:21:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:21:03,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-04 16:21:03,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:21:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:21:04,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:21:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:21:19,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:21:19,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942880794] [2023-05-04 16:21:19,412 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:21:19,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689135111] [2023-05-04 16:21:19,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689135111] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 16:21:19,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 16:21:19,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2023-05-04 16:21:19,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113386317] [2023-05-04 16:21:19,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 16:21:19,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-05-04 16:21:19,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:21:19,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-05-04 16:21:19,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2023-05-04 16:21:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:19,416 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:21:19,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:21:19,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:21:34,348 WARN L233 SmtUtils]: Spent 13.13s on a formula simplification. DAG size of input: 48 DAG size of output: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:21:49,226 WARN L233 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 51 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:22:03,973 WARN L233 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 53 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:22:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:22:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:22:11,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:22:11,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 16:22:12,028 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,SelfDestructingSolverStorable15 [2023-05-04 16:22:12,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:22:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:22:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash 443514702, now seen corresponding path program 1 times [2023-05-04 16:22:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:22:12,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729945581] [2023-05-04 16:22:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:22:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:22:12,051 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:22:12,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115945463] [2023-05-04 16:22:12,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:22:12,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:22:12,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:22:12,053 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 16:22:12,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-05-04 16:22:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 16:22:12,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 66 conjunts are in the unsatisfiable core [2023-05-04 16:22:12,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:22:12,407 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 7 treesize of output 6 [2023-05-04 16:22:12,459 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-05-04 16:22:12,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-05-04 16:22:12,489 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-05-04 16:22:12,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-05-04 16:22:12,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:22:12,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:22:13,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 52 treesize of output 45 [2023-05-04 16:22:13,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 70 [2023-05-04 16:22:14,316 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 26 treesize of output 22 [2023-05-04 16:22:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:22:14,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:24:39,545 WARN L233 SmtUtils]: Spent 2.16m on a formula simplification that was a NOOP. DAG size: 150 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:26:17,489 WARN L233 SmtUtils]: Spent 1.45m on a formula simplification that was a NOOP. DAG size: 124 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:28:30,539 WARN L233 SmtUtils]: Spent 1.56m on a formula simplification that was a NOOP. DAG size: 127 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:28:38,953 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse13 (mod c_~buffer_size~0 4294967296))) (let ((.cse3 (mod (mod (mod (+ c_~next~0 1) 4294967296) .cse13) 4294967296)) (.cse2 (mod c_~next~0 4294967296))) (or (= (mod c_~send~0 256) 0) (let ((.cse6 (+ |c_t1Thread1of1ForFork0_~i~0#1| 1))) (let ((.cse11 (mod .cse6 256)) (.cse5 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse7 (<= .cse5 2147483647)) (.cse0 (<= .cse11 127))) (let ((.cse10 (not .cse0)) (.cse1 (not .cse7)) (.cse4 (+ (- 256) .cse11)) (.cse12 (<= .cse2 2147483647))) (and (or (let ((.cse9 (<= .cse3 2147483647))) (let ((.cse8 (not .cse9))) (and (or .cse0 (and (or (and (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) .cse4) (+ |~#buffer~0.offset| .cse5)) .cse6))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) .cse4) (+ |~#buffer~0.offset| .cse5 (- 4294967296))) .cse6)) .cse7)) .cse8) (or (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse4) (+ |~#buffer~0.offset| .cse5 (- 4294967296))) .cse6)) .cse7) (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse4) (+ |~#buffer~0.offset| .cse5)) .cse6)))) .cse9))) (or .cse10 (and (or (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= .cse6 (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse11) (+ |~#buffer~0.offset| .cse5 (- 4294967296))))) .cse7) (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse11) (+ |~#buffer~0.offset| .cse5)) .cse6)))) .cse9) (or .cse8 (and (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= .cse6 (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) .cse11) (+ |~#buffer~0.offset| .cse5))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) .cse11) (+ |~#buffer~0.offset| .cse5 (- 4294967296))) .cse6)) .cse7)))))))) (not .cse12)) (or (and (or (and (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse11) (+ |~#buffer~0.offset| .cse5)) .cse6))) (or .cse7 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse11) (+ |~#buffer~0.offset| .cse5 (- 4294967296))) .cse6)))) .cse10) (or (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse4) (+ |~#buffer~0.offset| .cse5 (- 4294967296))) .cse6)) .cse7) (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= .cse6 (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) .cse4) (+ |~#buffer~0.offset| .cse5)))))) .cse0)) .cse12)))))) (not (< 0 .cse3)) (not (< .cse2 .cse13))))) is different from false [2023-05-04 16:28:51,683 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (mod c_~buffer_size~0 4294967296))) (let ((.cse3 (mod (mod (mod (+ c_~next~0 1) 4294967296) .cse7) 4294967296)) (.cse2 (mod c_~next~0 4294967296))) (or (let ((.cse4 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse1 (<= .cse4 2147483647))) (let ((.cse0 (<= .cse2 2147483647)) (.cse5 (not .cse1))) (and (or (not .cse0) (let ((.cse6 (<= .cse3 2147483647))) (and (or (and (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1))) (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1)))) .cse6) (or (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) 1) (+ |~#buffer~0.offset| .cse4)) 1)) .cse5) (or .cse1 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)))) (not .cse6))))) (or .cse0 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)) .cse1) (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse2 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1))))))))) (= (mod c_~send~0 256) 0) (not (< 0 .cse3)) (not (< .cse2 .cse7))))) is different from false [2023-05-04 16:29:00,652 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (mod c_~buffer_size~0 4294967296))) (let ((.cse0 (mod (mod (mod (+ c_~next~0 1) 4294967296) .cse7) 4294967296)) (.cse3 (mod c_~next~0 4294967296))) (or (= (mod c_~send~0 256) 0) (not (< 0 .cse0)) (let ((.cse4 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse2 (<= .cse4 2147483647))) (let ((.cse5 (not .cse2)) (.cse6 (<= .cse3 2147483647))) (and (or (let ((.cse1 (<= .cse0 2147483647))) (and (or (not .cse1) (and (or .cse2 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1))) (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0) 1) (+ |~#buffer~0.offset| .cse4)) 1))))) (or (and (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1))) (or .cse2 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)))) .cse1))) (not .cse6)) (or (and (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1))) (or (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)) .cse2)) .cse6))))) (not (< .cse3 .cse7))))) is different from false [2023-05-04 16:29:06,146 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (mod c_~buffer_size~0 4294967296))) (let ((.cse0 (mod (mod (mod (+ c_~next~0 1) 4294967296) .cse7) 4294967296)) (.cse3 (mod c_~next~0 4294967296))) (or (not (< 0 .cse0)) (let ((.cse4 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse2 (<= .cse4 2147483647))) (let ((.cse5 (not .cse2)) (.cse6 (<= .cse3 2147483647))) (and (or (let ((.cse1 (<= .cse0 2147483647))) (and (or (not .cse1) (and (or .cse2 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1))) (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0) 1) (+ |~#buffer~0.offset| .cse4)) 1))))) (or (and (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1))) (or .cse2 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)))) .cse1))) (not .cse6)) (or (and (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4)) 1))) (or (forall ((v_ArrVal_832 (Array Int Int)) (v_ArrVal_831 (Array Int Int)) (|~#buffer~0.offset| Int) (v_ArrVal_833 Int)) (= (select (store (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id1~0#1.base| v_ArrVal_831) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse3 (- 4294967296)) v_ArrVal_833) (+ |~#buffer~0.offset| .cse0 (- 4294967296)) 1) (+ |~#buffer~0.offset| .cse4 (- 4294967296))) 1)) .cse2)) .cse6))))) (not (< .cse3 .cse7))))) is different from false [2023-05-04 16:29:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-05-04 16:29:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 16:29:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729945581] [2023-05-04 16:29:08,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 16:29:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115945463] [2023-05-04 16:29:08,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115945463] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 16:29:08,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 16:29:08,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 26] total 57 [2023-05-04 16:29:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576972511] [2023-05-04 16:29:08,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 16:29:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-05-04 16:29:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 16:29:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-05-04 16:29:08,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=2493, Unknown=8, NotChecked=420, Total=3192 [2023-05-04 16:29:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:29:08,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 16:29:08,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 5.2631578947368425) internal successors, (300), 57 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 16:29:08,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:29:08,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:29:08,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:29:08,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:29:23,926 WARN L233 SmtUtils]: Spent 11.33s on a formula simplification. DAG size of input: 226 DAG size of output: 111 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 16:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 16:30:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 16:30:19,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-05-04 16:30:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-05-04 16:30:19,895 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 16:30:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 16:30:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1165572202, now seen corresponding path program 2 times [2023-05-04 16:30:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 16:30:19,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683348413] [2023-05-04 16:30:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 16:30:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 16:30:19,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 16:30:19,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391319331] [2023-05-04 16:30:19,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 16:30:19,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 16:30:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 16:30:19,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 16:30:19,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-05-04 16:30:20,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 16:30:20,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 16:30:20,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 100 conjunts are in the unsatisfiable core [2023-05-04 16:30:20,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 16:30:20,536 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 7 treesize of output 6 [2023-05-04 16:30:20,641 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-05-04 16:30:20,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-05-04 16:30:20,693 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-05-04 16:30:20,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-05-04 16:30:21,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:30:21,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 16:30:21,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 52 treesize of output 45 [2023-05-04 16:30:23,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 61 treesize of output 54 [2023-05-04 16:30:30,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 75 treesize of output 66 [2023-05-04 16:30:57,801 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 71 treesize of output 65 [2023-05-04 16:31:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 12 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 16:31:22,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 16:31:52,340 WARN L233 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 70 DAG size of output: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-05-04 16:32:35,519 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:32:35,520 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:32:35,530 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:32:35,530 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:32:35,530 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 16:32:35,544 WARN L249 SmtUtils]: Removed 9 from assertion stack [2023-05-04 16:32:35,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 16:32:35,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-05-04 16:32:35,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-05-04 16:32:35,746 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 260 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 71 for 1800ms.. [2023-05-04 16:32:35,746 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-05-04 16:32:35,747 INFO L307 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was TIMEOUT (3/3) [2023-05-04 16:32:35,748 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 16:32:35,748 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 16:32:35,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 04:32:35 BasicIcfg [2023-05-04 16:32:35,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 16:32:35,751 INFO L158 Benchmark]: Toolchain (without parser) took 865932.24ms. Allocated memory was 202.4MB in the beginning and 338.7MB in the end (delta: 136.3MB). Free memory was 145.7MB in the beginning and 198.1MB in the end (delta: -52.4MB). Peak memory consumption was 84.5MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,751 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 16:32:35,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.85ms. Allocated memory is still 202.4MB. Free memory was 145.6MB in the beginning and 164.7MB in the end (delta: -19.1MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.51ms. Allocated memory is still 202.4MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,751 INFO L158 Benchmark]: Boogie Preprocessor took 28.10ms. Allocated memory is still 202.4MB. Free memory was 162.6MB in the beginning and 160.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,752 INFO L158 Benchmark]: RCFGBuilder took 469.84ms. Allocated memory is still 202.4MB. Free memory was 160.5MB in the beginning and 143.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,752 INFO L158 Benchmark]: TraceAbstraction took 864876.37ms. Allocated memory was 202.4MB in the beginning and 338.7MB in the end (delta: 136.3MB). Free memory was 141.7MB in the beginning and 198.1MB in the end (delta: -56.4MB). Peak memory consumption was 80.3MB. Max. memory is 8.0GB. [2023-05-04 16:32:35,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 482.85ms. Allocated memory is still 202.4MB. Free memory was 145.6MB in the beginning and 164.7MB in the end (delta: -19.1MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.51ms. Allocated memory is still 202.4MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.10ms. Allocated memory is still 202.4MB. Free memory was 162.6MB in the beginning and 160.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 469.84ms. Allocated memory is still 202.4MB. Free memory was 160.5MB in the beginning and 143.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 864876.37ms. Allocated memory was 202.4MB in the beginning and 338.7MB in the end (delta: 136.3MB). Free memory was 141.7MB in the beginning and 198.1MB in the end (delta: -56.4MB). Peak memory consumption was 80.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19244, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 1308, dependent conditional: 1286, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18030, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 94, dependent conditional: 72, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18030, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 94, dependent conditional: 72, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 361, dependent unconditional: 138, unknown: 14, unknown conditional: 10, unknown unconditional: 4] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 147, dependent unconditional: 352, unknown: 14, unknown conditional: 7, unknown unconditional: 7] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 147, dependent unconditional: 352, unknown: 14, unknown conditional: 7, unknown unconditional: 7] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4724, independent: 4690, independent conditional: 2, independent unconditional: 4688, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4724, independent: 4683, independent conditional: 0, independent unconditional: 4683, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 7, independent conditional: 2, independent unconditional: 5, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 7, independent conditional: 2, independent unconditional: 5, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6637, independent: 70, independent conditional: 3, independent unconditional: 67, dependent: 104, dependent conditional: 18, dependent unconditional: 87, unknown: 6463, unknown conditional: 4315, unknown unconditional: 2148] , Protected Queries: 0 ], Cache Queries: [ total: 18445, independent: 13242, independent conditional: 42, independent unconditional: 13200, dependent: 471, dependent conditional: 141, dependent unconditional: 330, unknown: 4732, unknown conditional: 15, unknown unconditional: 4717] , Statistics on independence cache: Total cache size (in pairs): 4718, Positive cache size: 4690, Positive conditional cache size: 2, Positive unconditional cache size: 4688, Negative cache size: 28, Negative conditional cache size: 6, Negative unconditional cache size: 22, Unknown cache size: 6, Unknown conditional cache size: 4, Unknown unconditional cache size: 2, Eliminated conditions: 217, Maximal queried relation: 6, Independence queries for same thread: 1214 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.5s, Number of persistent set computation: 1809, Number of trivial persistent sets: 1594, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6947, independent: 6923, independent conditional: 0, independent unconditional: 6923, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19244, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 1308, dependent conditional: 1286, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18030, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 94, dependent conditional: 72, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18030, independent: 17932, independent conditional: 11009, independent unconditional: 6923, dependent: 94, dependent conditional: 72, dependent unconditional: 22, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 361, dependent unconditional: 138, unknown: 14, unknown conditional: 10, unknown unconditional: 4] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 147, dependent unconditional: 352, unknown: 14, unknown conditional: 7, unknown unconditional: 7] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18445, independent: 17932, independent conditional: 44, independent unconditional: 17888, dependent: 499, dependent conditional: 147, dependent unconditional: 352, unknown: 14, unknown conditional: 7, unknown unconditional: 7] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4724, independent: 4690, independent conditional: 2, independent unconditional: 4688, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4724, independent: 4683, independent conditional: 0, independent unconditional: 4683, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 7, independent conditional: 2, independent unconditional: 5, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 7, independent conditional: 2, independent unconditional: 5, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6637, independent: 70, independent conditional: 3, independent unconditional: 67, dependent: 104, dependent conditional: 18, dependent unconditional: 87, unknown: 6463, unknown conditional: 4315, unknown unconditional: 2148] , Protected Queries: 0 ], Cache Queries: [ total: 18445, independent: 13242, independent conditional: 42, independent unconditional: 13200, dependent: 471, dependent conditional: 141, dependent unconditional: 330, unknown: 4732, unknown conditional: 15, unknown unconditional: 4717] , Statistics on independence cache: Total cache size (in pairs): 4718, Positive cache size: 4690, Positive conditional cache size: 2, Positive unconditional cache size: 4688, Negative cache size: 28, Negative conditional cache size: 6, Negative unconditional cache size: 22, Unknown cache size: 6, Unknown conditional cache size: 4, Unknown unconditional cache size: 2, Eliminated conditions: 217, Maximal queried relation: 6, Independence queries for same thread: 1214 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2988, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 31, dependent conditional: 21, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2679, independent: 2667, independent conditional: 0, independent unconditional: 2667, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2679, independent: 2664, independent conditional: 0, independent unconditional: 2664, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2274, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 2157, unknown conditional: 0, unknown unconditional: 2157] , Protected Queries: 0 ], Cache Queries: [ total: 2967, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2680, unknown conditional: 0, unknown unconditional: 2680] , Statistics on independence cache: Total cache size (in pairs): 2677, Positive cache size: 2667, Positive conditional cache size: 0, Positive unconditional cache size: 2667, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 21 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.3s, Number of persistent set computation: 122, Number of trivial persistent sets: 112, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2891, independent: 2879, independent conditional: 0, independent unconditional: 2879, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2988, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 31, dependent conditional: 21, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 75, independent unconditional: 2879, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2967, independent: 2954, independent conditional: 0, independent unconditional: 2954, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2679, independent: 2667, independent conditional: 0, independent unconditional: 2667, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2679, independent: 2664, independent conditional: 0, independent unconditional: 2664, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2274, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 2157, unknown conditional: 0, unknown unconditional: 2157] , Protected Queries: 0 ], Cache Queries: [ total: 2967, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2680, unknown conditional: 0, unknown unconditional: 2680] , Statistics on independence cache: Total cache size (in pairs): 2677, Positive cache size: 2667, Positive conditional cache size: 0, Positive unconditional cache size: 2667, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 21 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7960, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 559, dependent conditional: 536, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7445, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 44, dependent conditional: 21, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7445, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 44, dependent conditional: 21, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 95, dependent unconditional: 44, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 21, dependent unconditional: 118, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 21, dependent unconditional: 118, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4362, independent: 4336, independent conditional: 0, independent unconditional: 4336, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4362, independent: 4331, independent conditional: 0, independent unconditional: 4331, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1174, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 73, dependent conditional: 2, dependent unconditional: 71, unknown: 1072, unknown conditional: 0, unknown unconditional: 1072] , Protected Queries: 0 ], Cache Queries: [ total: 7540, independent: 3064, independent conditional: 0, independent unconditional: 3064, dependent: 114, dependent conditional: 19, dependent unconditional: 95, unknown: 4362, unknown conditional: 2, unknown unconditional: 4360] , Statistics on independence cache: Total cache size (in pairs): 4361, Positive cache size: 4336, Positive conditional cache size: 0, Positive unconditional cache size: 4336, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 74, Maximal queried relation: 8, Independence queries for same thread: 515 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.2s, Number of persistent set computation: 216, Number of trivial persistent sets: 177, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6027, independent: 6003, independent conditional: 0, independent unconditional: 6003, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7960, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 559, dependent conditional: 536, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7445, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 44, dependent conditional: 21, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7445, independent: 7400, independent conditional: 1397, independent unconditional: 6003, dependent: 44, dependent conditional: 21, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 95, dependent unconditional: 44, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 21, dependent unconditional: 118, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7540, independent: 7400, independent conditional: 0, independent unconditional: 7400, dependent: 139, dependent conditional: 21, dependent unconditional: 118, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4362, independent: 4336, independent conditional: 0, independent unconditional: 4336, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4362, independent: 4331, independent conditional: 0, independent unconditional: 4331, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 25, dependent conditional: 2, dependent unconditional: 23, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1174, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 73, dependent conditional: 2, dependent unconditional: 71, unknown: 1072, unknown conditional: 0, unknown unconditional: 1072] , Protected Queries: 0 ], Cache Queries: [ total: 7540, independent: 3064, independent conditional: 0, independent unconditional: 3064, dependent: 114, dependent conditional: 19, dependent unconditional: 95, unknown: 4362, unknown conditional: 2, unknown unconditional: 4360] , Statistics on independence cache: Total cache size (in pairs): 4361, Positive cache size: 4336, Positive conditional cache size: 0, Positive unconditional cache size: 4336, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 74, Maximal queried relation: 8, Independence queries for same thread: 515 - PositiveResult [Line: 714]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 731]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - TimeoutResultAtElement [Line: 749]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 260 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 71 for 1800ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 226 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 7.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 635 ConstructedInterpolants, 1 QuantifiedInterpolants, 1572 SizeOfPredicates, 5 NumberOfNonLiveVariables, 810 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 226 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 2.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 226 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 851.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 159.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 553.8s InterpolantComputationTime, 1203 NumberOfCodeBlocks, 1203 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1863 ConstructedInterpolants, 197 QuantifiedInterpolants, 60503 SizeOfPredicates, 58 NumberOfNonLiveVariables, 2053 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 88/257 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown