/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-9868fc6-m [2022-11-14 21:07:18,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-14 21:07:18,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-14 21:07:18,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-14 21:07:18,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-14 21:07:18,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-14 21:07:18,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-14 21:07:18,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-14 21:07:18,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-14 21:07:18,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-14 21:07:18,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-14 21:07:18,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-14 21:07:18,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-14 21:07:18,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-14 21:07:18,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-14 21:07:18,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-14 21:07:18,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-14 21:07:18,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-14 21:07:18,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-14 21:07:18,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-14 21:07:18,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-14 21:07:18,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-14 21:07:18,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-14 21:07:18,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-14 21:07:18,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-14 21:07:18,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-14 21:07:18,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-14 21:07:18,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-14 21:07:18,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-14 21:07:18,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-14 21:07:18,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-14 21:07:18,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-14 21:07:18,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-14 21:07:18,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-14 21:07:18,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-14 21:07:18,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-14 21:07:18,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-14 21:07:18,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-14 21:07:18,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-14 21:07:18,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-14 21:07:18,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-14 21:07:18,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-14 21:07:18,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-14 21:07:18,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-14 21:07:18,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-14 21:07:18,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-14 21:07:18,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-14 21:07:18,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-14 21:07:18,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-14 21:07:18,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-14 21:07:18,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-14 21:07:18,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-14 21:07:18,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-14 21:07:18,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-14 21:07:18,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-14 21:07:18,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-14 21:07:18,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-14 21:07:18,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-14 21:07:18,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-14 21:07:18,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-14 21:07:18,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-14 21:07:18,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-14 21:07:18,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-14 21:07:18,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-14 21:07:18,124 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-14 21:07:18,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-14 21:07:18,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-14 21:07:18,124 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-14 21:07:18,124 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-14 21:07:18,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-11-14 21:07:18,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-14 21:07:18,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-14 21:07:18,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-14 21:07:18,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-14 21:07:18,306 INFO L275 PluginConnector]: CDTParser initialized [2022-11-14 21:07:18,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-11-14 21:07:18,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c4f55c/c34185ec606e4eacb63d7fed01bf06af/FLAG3a5678a18 [2022-11-14 21:07:18,784 INFO L306 CDTParser]: Found 1 translation units. [2022-11-14 21:07:18,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-11-14 21:07:18,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c4f55c/c34185ec606e4eacb63d7fed01bf06af/FLAG3a5678a18 [2022-11-14 21:07:18,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c4f55c/c34185ec606e4eacb63d7fed01bf06af [2022-11-14 21:07:18,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-14 21:07:18,809 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-14 21:07:18,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-14 21:07:18,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-14 21:07:18,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-14 21:07:18,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:07:18" (1/1) ... [2022-11-14 21:07:18,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a4de15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:18, skipping insertion in model container [2022-11-14 21:07:18,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:07:18" (1/1) ... [2022-11-14 21:07:18,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-14 21:07:18,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-14 21:07:19,039 WARN L233 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_bad.i[30440,30453] [2022-11-14 21:07:19,052 WARN L233 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_bad.i[30895,30908] [2022-11-14 21:07:19,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-14 21:07:19,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-14 21:07:19,119 WARN L233 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_bad.i[30440,30453] [2022-11-14 21:07:19,121 WARN L233 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_bad.i[30895,30908] [2022-11-14 21:07:19,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-14 21:07:19,150 INFO L208 MainTranslator]: Completed translation [2022-11-14 21:07:19,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19 WrapperNode [2022-11-14 21:07:19,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-14 21:07:19,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-14 21:07:19,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-14 21:07:19,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-14 21:07:19,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,193 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2022-11-14 21:07:19,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-14 21:07:19,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-14 21:07:19,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-14 21:07:19,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-14 21:07:19,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-14 21:07:19,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-14 21:07:19,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-14 21:07:19,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-14 21:07:19,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (1/1) ... [2022-11-14 21:07:19,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-14 21:07:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:19,244 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) [2022-11-14 21:07:19,248 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 [2022-11-14 21:07:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-14 21:07:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-14 21:07:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-14 21:07:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-14 21:07:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-14 21:07:19,273 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-14 21:07:19,367 INFO L235 CfgBuilder]: Building ICFG [2022-11-14 21:07:19,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-14 21:07:19,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-14 21:07:19,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-14 21:07:19,672 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-14 21:07:19,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:07:19 BoogieIcfgContainer [2022-11-14 21:07:19,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-14 21:07:19,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-14 21:07:19,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-14 21:07:19,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-14 21:07:19,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 09:07:18" (1/3) ... [2022-11-14 21:07:19,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe786a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:07:19, skipping insertion in model container [2022-11-14 21:07:19,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:19" (2/3) ... [2022-11-14 21:07:19,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe786a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:07:19, skipping insertion in model container [2022-11-14 21:07:19,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:07:19" (3/3) ... [2022-11-14 21:07:19,684 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2022-11-14 21:07:19,690 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-14 21:07:19,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-14 21:07:19,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-14 21:07:19,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-14 21:07:19,794 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-14 21:07:19,837 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:19,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-14 21:07:19,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:19,840 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) [2022-11-14 21:07:19,841 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 [2022-11-14 21:07:19,869 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-14 21:07:19,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2022-11-14 21:07:19,890 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;@58bd87a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:19,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-14 21:07:21,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1828844499, now seen corresponding path program 1 times [2022-11-14 21:07:21,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674777652] [2022-11-14 21:07:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:21,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:21,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-14 21:07:21,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782488197] [2022-11-14 21:07:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:21,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:21,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:21,283 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) [2022-11-14 21:07:21,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-14 21:07:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:21,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-14 21:07:21,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-14 21:07:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:21,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-14 21:07:21,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674777652] [2022-11-14 21:07:21,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-14 21:07:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782488197] [2022-11-14 21:07:21,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782488197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-14 21:07:21,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-14 21:07:21,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-14 21:07:21,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384433628] [2022-11-14 21:07:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-14 21:07:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-14 21:07:21,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-14 21:07:21,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-14 21:07:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:21,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:21,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-14 21:07:21,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-14 21:07:21,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-14 21:07:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-14 21:07:21,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash -859604214, now seen corresponding path program 1 times [2022-11-14 21:07:21,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:21,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454287885] [2022-11-14 21:07:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:21,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:21,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-14 21:07:21,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029565151] [2022-11-14 21:07:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:21,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:21,787 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) [2022-11-14 21:07:21,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-14 21:07:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:21,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-14 21:07:21,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-14 21:07:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:21,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-14 21:07:21,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:21,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454287885] [2022-11-14 21:07:21,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-14 21:07:21,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029565151] [2022-11-14 21:07:21,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029565151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-14 21:07:21,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-14 21:07:21,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-14 21:07:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867197871] [2022-11-14 21:07:21,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-14 21:07:21,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-14 21:07:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:21,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-14 21:07:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-14 21:07:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:21,933 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:21,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2022-11-14 21:07:21,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-14 21:07:21,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:21,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:21,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-14 21:07:21,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-14 21:07:22,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:22,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:22,189 INFO L85 PathProgramCache]: Analyzing trace with hash -591949360, now seen corresponding path program 1 times [2022-11-14 21:07:22,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:22,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150851071] [2022-11-14 21:07:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:22,232 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-14 21:07:22,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037166153] [2022-11-14 21:07:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:22,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:22,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:22,238 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) [2022-11-14 21:07:22,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-14 21:07:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:22,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-14 21:07:22,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-14 21:07:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:22,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-14 21:07:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:22,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:22,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150851071] [2022-11-14 21:07:22,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-14 21:07:22,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037166153] [2022-11-14 21:07:22,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037166153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-14 21:07:22,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-14 21:07:22,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-14 21:07:22,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552072174] [2022-11-14 21:07:22,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-14 21:07:22,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-14 21:07:22,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-14 21:07:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-14 21:07:22,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:22,464 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:22,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-14 21:07:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-14 21:07:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:24,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-14 21:07:24,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-14 21:07:24,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-14 21:07:24,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-14 21:07:24,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-14 21:07:24,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:24,278 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-14 21:07:24,279 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE,SAFE (1/3) [2022-11-14 21:07:24,286 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:24,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-14 21:07:24,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:24,288 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) [2022-11-14 21:07:24,290 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 [2022-11-14 21:07:24,292 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-14 21:07:24,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-14 21:07:24,293 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;@58bd87a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:24,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-14 21:07:26,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2022-11-14 21:07:26,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-14 21:07:26,565 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-11-14 21:07:26,565 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2022-11-14 21:07:26,567 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:26,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-14 21:07:26,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:26,570 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) [2022-11-14 21:07:26,571 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 [2022-11-14 21:07:26,573 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-14 21:07:26,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork1 ======== [2022-11-14 21:07:26,574 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;@58bd87a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-14 21:07:26,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-14 21:07:27,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:27,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:27,731 INFO L85 PathProgramCache]: Analyzing trace with hash 376473979, now seen corresponding path program 1 times [2022-11-14 21:07:27,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:27,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477627003] [2022-11-14 21:07:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477627003] [2022-11-14 21:07:27,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477627003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-14 21:07:27,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-14 21:07:27,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-14 21:07:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551882180] [2022-11-14 21:07:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-14 21:07:27,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-14 21:07:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-14 21:07:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-14 21:07:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:27,928 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:27,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-11-14 21:07:27,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:27,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-14 21:07:27,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash -760329721, now seen corresponding path program 1 times [2022-11-14 21:07:27,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:27,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245095884] [2022-11-14 21:07:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:27,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-14 21:07:28,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:28,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245095884] [2022-11-14 21:07:28,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245095884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-14 21:07:28,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-14 21:07:28,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-14 21:07:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936790590] [2022-11-14 21:07:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-14 21:07:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-14 21:07:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-14 21:07:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-14 21:07:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:28,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:28,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2022-11-14 21:07:28,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:28,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:28,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-14 21:07:28,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-14 21:07:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-14 21:07:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2095384422, now seen corresponding path program 1 times [2022-11-14 21:07:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-14 21:07:28,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238475819] [2022-11-14 21:07:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-14 21:07:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:28,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-14 21:07:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238475819] [2022-11-14 21:07:28,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238475819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-14 21:07:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173014205] [2022-11-14 21:07:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-14 21:07:28,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:28,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-14 21:07:28,229 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) [2022-11-14 21:07:28,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-14 21:07:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-14 21:07:28,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-14 21:07:28,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-14 21:07:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-14 21:07:28,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-14 21:07:28,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173014205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-14 21:07:28,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-14 21:07:28,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-14 21:07:28,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468049447] [2022-11-14 21:07:28,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-14 21:07:28,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-14 21:07:28,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-14 21:07:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-14 21:07:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-14 21:07:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:28,405 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-14 21:07:28,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 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) [2022-11-14 21:07:28,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:28,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:28,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-14 21:07:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-14 21:07:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-14 21:07:29,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-14 21:07:29,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-14 21:07:29,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-14 21:07:29,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-14 21:07:29,979 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-14 21:07:29,979 INFO L307 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was SAFE,SAFE (3/3) [2022-11-14 21:07:29,980 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-14 21:07:29,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-14 21:07:29,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 09:07:29 BasicIcfg [2022-11-14 21:07:29,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-14 21:07:29,982 INFO L158 Benchmark]: Toolchain (without parser) took 11173.07ms. Allocated memory was 191.9MB in the beginning and 317.7MB in the end (delta: 125.8MB). Free memory was 162.1MB in the beginning and 197.2MB in the end (delta: -35.1MB). Peak memory consumption was 154.1MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,983 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 191.9MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-14 21:07:29,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.66ms. Allocated memory was 191.9MB in the beginning and 264.2MB in the end (delta: 72.4MB). Free memory was 162.1MB in the beginning and 223.7MB in the end (delta: -61.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.29ms. Allocated memory is still 264.2MB. Free memory was 223.7MB in the beginning and 221.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,983 INFO L158 Benchmark]: Boogie Preprocessor took 24.16ms. Allocated memory is still 264.2MB. Free memory was 221.1MB in the beginning and 219.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,983 INFO L158 Benchmark]: RCFGBuilder took 449.59ms. Allocated memory is still 264.2MB. Free memory was 219.5MB in the beginning and 201.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,984 INFO L158 Benchmark]: TraceAbstraction took 10307.46ms. Allocated memory was 264.2MB in the beginning and 317.7MB in the end (delta: 53.5MB). Free memory was 200.1MB in the beginning and 197.2MB in the end (delta: 2.9MB). Peak memory consumption was 120.9MB. Max. memory is 8.0GB. [2022-11-14 21:07:29,985 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 191.9MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 337.66ms. Allocated memory was 191.9MB in the beginning and 264.2MB in the end (delta: 72.4MB). Free memory was 162.1MB in the beginning and 223.7MB in the end (delta: -61.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.29ms. Allocated memory is still 264.2MB. Free memory was 223.7MB in the beginning and 221.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.16ms. Allocated memory is still 264.2MB. Free memory was 221.1MB in the beginning and 219.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 449.59ms. Allocated memory is still 264.2MB. Free memory was 219.5MB in the beginning and 201.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 10307.46ms. Allocated memory was 264.2MB in the beginning and 317.7MB in the end (delta: 53.5MB). Free memory was 200.1MB in the beginning and 197.2MB in the end (delta: 2.9MB). Peak memory consumption was 120.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22807, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 1464, dependent conditional: 1444, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21530, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 187, dependent conditional: 167, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21530, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 187, dependent conditional: 167, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 374, dependent unconditional: 187, unknown: 12, unknown conditional: 7, unknown unconditional: 5] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4836, independent: 4813, independent conditional: 0, independent unconditional: 4813, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4836, independent: 4805, independent conditional: 0, independent unconditional: 4805, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2332, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 2158, unknown conditional: 0, unknown unconditional: 2158] , Protected Queries: 0 ], Cache Queries: [ total: 21911, independent: 16525, independent conditional: 0, independent unconditional: 16525, dependent: 540, dependent conditional: 0, dependent unconditional: 540, unknown: 4846, unknown conditional: 0, unknown unconditional: 4846] , Statistics on independence cache: Total cache size (in pairs): 4834, Positive cache size: 4813, Positive conditional cache size: 0, Positive unconditional cache size: 4813, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 381, Maximal queried relation: 3, Independence queries for same thread: 1277 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.5s, Number of persistent set computation: 1752, Number of trivial persistent sets: 1034, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7661, independent: 7639, independent conditional: 0, independent unconditional: 7639, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22807, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 1464, dependent conditional: 1444, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21530, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 187, dependent conditional: 167, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21530, independent: 21338, independent conditional: 13699, independent unconditional: 7639, dependent: 187, dependent conditional: 167, dependent unconditional: 20, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 374, dependent unconditional: 187, unknown: 12, unknown conditional: 7, unknown unconditional: 5] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21911, independent: 21338, independent conditional: 0, independent unconditional: 21338, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4836, independent: 4813, independent conditional: 0, independent unconditional: 4813, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4836, independent: 4805, independent conditional: 0, independent unconditional: 4805, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2332, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 2158, unknown conditional: 0, unknown unconditional: 2158] , Protected Queries: 0 ], Cache Queries: [ total: 21911, independent: 16525, independent conditional: 0, independent unconditional: 16525, dependent: 540, dependent conditional: 0, dependent unconditional: 540, unknown: 4846, unknown conditional: 0, unknown unconditional: 4846] , Statistics on independence cache: Total cache size (in pairs): 4834, Positive cache size: 4813, Positive conditional cache size: 0, Positive unconditional cache size: 4813, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 381, Maximal queried relation: 3, Independence queries for same thread: 1277 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2688, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 17, dependent conditional: 8, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2526, independent: 2515, independent conditional: 0, independent unconditional: 2515, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2526, independent: 2512, independent conditional: 0, independent unconditional: 2512, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2256, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 2151, unknown conditional: 0, unknown unconditional: 2151] , Protected Queries: 0 ], Cache Queries: [ total: 2680, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2527, unknown conditional: 0, unknown unconditional: 2527] , Statistics on independence cache: Total cache size (in pairs): 2524, Positive cache size: 2515, Positive conditional cache size: 0, Positive unconditional cache size: 2515, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: 8 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.3s, Number of persistent set computation: 89, Number of trivial persistent sets: 82, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2634, independent: 2623, independent conditional: 0, independent unconditional: 2623, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2688, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 17, dependent conditional: 8, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 45, independent unconditional: 2623, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2680, independent: 2668, independent conditional: 0, independent unconditional: 2668, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2526, independent: 2515, independent conditional: 0, independent unconditional: 2515, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2526, independent: 2512, independent conditional: 0, independent unconditional: 2512, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2256, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 2151, unknown conditional: 0, unknown unconditional: 2151] , Protected Queries: 0 ], Cache Queries: [ total: 2680, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2527, unknown conditional: 0, unknown unconditional: 2527] , Statistics on independence cache: Total cache size (in pairs): 2524, Positive cache size: 2515, Positive conditional cache size: 0, Positive unconditional cache size: 2515, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: 8 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 17787, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 1094, dependent conditional: 1073, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16828, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 135, dependent conditional: 114, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16828, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 135, dependent conditional: 114, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 275, dependent unconditional: 135, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4841, independent: 4817, independent conditional: 0, independent unconditional: 4817, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4841, independent: 4809, independent conditional: 0, independent unconditional: 4809, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2265, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 2158, unknown conditional: 0, unknown unconditional: 2158] , Protected Queries: 0 ], Cache Queries: [ total: 17104, independent: 11873, independent conditional: 0, independent unconditional: 11873, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 4843, unknown conditional: 0, unknown unconditional: 4843] , Statistics on independence cache: Total cache size (in pairs): 4839, Positive cache size: 4817, Positive conditional cache size: 0, Positive unconditional cache size: 4817, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 276, Maximal queried relation: 3, Independence queries for same thread: 959 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.3s, Number of persistent set computation: 1621, Number of trivial persistent sets: 963, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7742, independent: 7719, independent conditional: 0, independent unconditional: 7719, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 17787, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 1094, dependent conditional: 1073, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16828, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 135, dependent conditional: 114, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16828, independent: 16690, independent conditional: 8971, independent unconditional: 7719, dependent: 135, dependent conditional: 114, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 275, dependent unconditional: 135, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17104, independent: 16690, independent conditional: 0, independent unconditional: 16690, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4841, independent: 4817, independent conditional: 0, independent unconditional: 4817, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4841, independent: 4809, independent conditional: 0, independent unconditional: 4809, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2265, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 2158, unknown conditional: 0, unknown unconditional: 2158] , Protected Queries: 0 ], Cache Queries: [ total: 17104, independent: 11873, independent conditional: 0, independent unconditional: 11873, dependent: 388, dependent conditional: 0, dependent unconditional: 388, unknown: 4843, unknown conditional: 0, unknown unconditional: 4843] , Statistics on independence cache: Total cache size (in pairs): 4839, Positive cache size: 4817, Positive conditional cache size: 0, Positive unconditional cache size: 4817, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 276, Maximal queried relation: 3, Independence queries for same thread: 959 - PositiveResult [Line: 724]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 724]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 225 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 3.0s, 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: 22, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 635 SizeOfPredicates, 5 NumberOfNonLiveVariables, 671 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/46 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, 225 locations, 10 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, 225 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.6s, 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: 18, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 403 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 3 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 49/74 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-14 21:07:30,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Forceful destruction successful, exit code 0 [2022-11-14 21:07:30,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2022-11-14 21:07:30,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-11-14 21:07:30,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...