/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 -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-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 12:45:00,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 12:45:00,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 12:45:00,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 12:45:00,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 12:45:00,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 12:45:00,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 12:45:00,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 12:45:00,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 12:45:00,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 12:45:00,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 12:45:00,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 12:45:00,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 12:45:00,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 12:45:00,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 12:45:00,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 12:45:00,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 12:45:00,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 12:45:00,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 12:45:00,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 12:45:00,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 12:45:00,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 12:45:00,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 12:45:00,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 12:45:00,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 12:45:00,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 12:45:00,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 12:45:00,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 12:45:00,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 12:45:00,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 12:45:00,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 12:45:00,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 12:45:00,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 12:45:00,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-09-16 12:45:00,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 12:45:00,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 12:45:00,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 12:45:00,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 12:45:00,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 12:45:00,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 12:45:00,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 12:45:00,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 12:45:00,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 12:45:00,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 12:45:00,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:45:00,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-09-16 12:45:00,971 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-09-16 12:45:00,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 12:45:01,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 12:45:01,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 12:45:01,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 12:45:01,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 12:45:01,170 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 12:45:01,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-09-16 12:45:01,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e092bf233/9409b3785368493795e131af04cafbfd/FLAGcbd8e41fb [2022-09-16 12:45:01,600 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 12:45:01,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-09-16 12:45:01,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e092bf233/9409b3785368493795e131af04cafbfd/FLAGcbd8e41fb [2022-09-16 12:45:01,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e092bf233/9409b3785368493795e131af04cafbfd [2022-09-16 12:45:01,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 12:45:01,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 12:45:01,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 12:45:01,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 12:45:01,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 12:45:01,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:45:01" (1/1) ... [2022-09-16 12:45:01,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad8a94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:01, skipping insertion in model container [2022-09-16 12:45:01,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:45:01" (1/1) ... [2022-09-16 12:45:01,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 12:45:01,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 12:45:01,839 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 12:45:02,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-09-16 12:45:02,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-09-16 12:45:02,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-09-16 12:45:02,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:45:02,033 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 12:45:02,044 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 12:45:02,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-09-16 12:45:02,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-09-16 12:45:02,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-09-16 12:45:02,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:45:02,104 INFO L208 MainTranslator]: Completed translation [2022-09-16 12:45:02,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02 WrapperNode [2022-09-16 12:45:02,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 12:45:02,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 12:45:02,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 12:45:02,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 12:45:02,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,152 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2022-09-16 12:45:02,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 12:45:02,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 12:45:02,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 12:45:02,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 12:45:02,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 12:45:02,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 12:45:02,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 12:45:02,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 12:45:02,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (1/1) ... [2022-09-16 12:45:02,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:45:02,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:02,221 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) [2022-09-16 12:45:02,227 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 [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-09-16 12:45:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 12:45:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 12:45:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 12:45:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 12:45:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 12:45:02,254 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 12:45:02,351 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 12:45:02,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 12:45:02,567 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 12:45:02,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 12:45:02,573 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 12:45:02,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:45:02 BoogieIcfgContainer [2022-09-16 12:45:02,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 12:45:02,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 12:45:02,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 12:45:02,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 12:45:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:45:01" (1/3) ... [2022-09-16 12:45:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd46821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:45:02, skipping insertion in model container [2022-09-16 12:45:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:45:02" (2/3) ... [2022-09-16 12:45:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd46821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:45:02, skipping insertion in model container [2022-09-16 12:45:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:45:02" (3/3) ... [2022-09-16 12:45:02,580 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-09-16 12:45:02,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 12:45:02,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 12:45:02,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-09-16 12:45:02,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 12:45:02,686 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 12:45:02,739 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 12:45:02,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 12:45:02,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:02,745 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) [2022-09-16 12:45:02,746 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 [2022-09-16 12:45:02,771 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 12:45:02,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_fnThread1of1ForFork0 ======== [2022-09-16 12:45:02,784 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;@ad6c69c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 12:45:02,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-09-16 12:45:02,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:02,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1273658638, now seen corresponding path program 1 times [2022-09-16 12:45:02,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:02,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629640772] [2022-09-16 12:45:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:02,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:03,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:03,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629640772] [2022-09-16 12:45:03,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629640772] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:03,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:45:03,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-09-16 12:45:03,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392274763] [2022-09-16 12:45:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:03,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 12:45:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 12:45:03,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-09-16 12:45:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:03,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:03,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 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) [2022-09-16 12:45:03,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 12:45:04,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 12:45:04,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash 828712617, now seen corresponding path program 1 times [2022-09-16 12:45:04,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:04,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484864163] [2022-09-16 12:45:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:04,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:04,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484864163] [2022-09-16 12:45:04,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484864163] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:04,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:45:04,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-09-16 12:45:04,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806540479] [2022-09-16 12:45:04,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:04,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 12:45:04,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 12:45:04,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-09-16 12:45:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,257 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:04,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 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) [2022-09-16 12:45:04,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-09-16 12:45:04,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 12:45:04,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:04,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1702021644, now seen corresponding path program 1 times [2022-09-16 12:45:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:04,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119326497] [2022-09-16 12:45:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:04,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:04,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119326497] [2022-09-16 12:45:04,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119326497] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:04,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:45:04,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 12:45:04,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194315825] [2022-09-16 12:45:04,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:04,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:45:04,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:04,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:45:04,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:45:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:04,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 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) [2022-09-16 12:45:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:04,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 12:45:04,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:04,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2058679112, now seen corresponding path program 1 times [2022-09-16 12:45:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:04,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800944818] [2022-09-16 12:45:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:04,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:04,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:04,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800944818] [2022-09-16 12:45:04,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800944818] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:04,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:45:04,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 12:45:04,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193644732] [2022-09-16 12:45:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:04,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:45:04,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:04,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:45:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:45:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:04,961 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:04,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 39.5) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:45:04,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:45:04,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:04,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 12:45:05,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1043609398, now seen corresponding path program 1 times [2022-09-16 12:45:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:05,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4244756] [2022-09-16 12:45:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:05,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:05,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4244756] [2022-09-16 12:45:05,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4244756] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:05,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987418493] [2022-09-16 12:45:05,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:05,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:05,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:05,214 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) [2022-09-16 12:45:05,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 12:45:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:05,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 25 conjunts are in the unsatisfiable core [2022-09-16 12:45:05,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:05,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:45:05,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-09-16 12:45:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:05,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:45:05,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-09-16 12:45:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:05,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987418493] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:45:05,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:45:05,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-09-16 12:45:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217114435] [2022-09-16 12:45:05,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:45:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 12:45:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 12:45:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-09-16 12:45:05,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:05,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:05,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 14 states have internal predecessors, (162), 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) [2022-09-16 12:45:05,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:05,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:06,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:06,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:06,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:06,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2007846527, now seen corresponding path program 1 times [2022-09-16 12:45:06,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:06,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951306699] [2022-09-16 12:45:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:06,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:06,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:06,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951306699] [2022-09-16 12:45:06,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951306699] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:06,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890503849] [2022-09-16 12:45:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:06,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:06,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:06,268 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) [2022-09-16 12:45:06,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 12:45:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:06,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjunts are in the unsatisfiable core [2022-09-16 12:45:06,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:06,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:45:06,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-09-16 12:45:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:06,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:45:06,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-09-16 12:45:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:06,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890503849] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:45:06,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:45:06,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 17 [2022-09-16 12:45:06,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29320543] [2022-09-16 12:45:06,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:45:06,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 12:45:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 12:45:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-09-16 12:45:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:06,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:06,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.0) internal successors, (204), 18 states have internal predecessors, (204), 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) [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:06,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:06,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:07,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:07,116 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:07,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1932680732, now seen corresponding path program 1 times [2022-09-16 12:45:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:07,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749191119] [2022-09-16 12:45:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:07,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749191119] [2022-09-16 12:45:07,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749191119] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986325943] [2022-09-16 12:45:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:07,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:07,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:07,218 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) [2022-09-16 12:45:07,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 12:45:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:07,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 12:45:07,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:07,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:45:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:07,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986325943] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:45:07,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:45:07,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2022-09-16 12:45:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360349652] [2022-09-16 12:45:07,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:45:07,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 12:45:07,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 12:45:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-09-16 12:45:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:07,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:07,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.9) internal successors, (249), 11 states have internal predecessors, (249), 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) [2022-09-16 12:45:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 12:45:07,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:07,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:07,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:07,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:07,723 INFO L85 PathProgramCache]: Analyzing trace with hash -216438937, now seen corresponding path program 1 times [2022-09-16 12:45:07,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:07,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197720967] [2022-09-16 12:45:07,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:07,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:07,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:07,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197720967] [2022-09-16 12:45:07,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197720967] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:07,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459875604] [2022-09-16 12:45:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:07,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:07,778 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:45:07,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 12:45:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:07,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 12:45:07,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:07,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 12:45:07,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459875604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:07,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 12:45:07,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-09-16 12:45:07,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760746311] [2022-09-16 12:45:07,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:07,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 12:45:07,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:07,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 12:45:07,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 12:45:07,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:07,949 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:07,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 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) [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 12:45:07,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:45:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:08,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:08,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:08,228 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:08,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1185947424, now seen corresponding path program 1 times [2022-09-16 12:45:08,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:08,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324683047] [2022-09-16 12:45:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 12:45:08,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:08,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324683047] [2022-09-16 12:45:08,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324683047] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:08,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:45:08,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 12:45:08,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089908241] [2022-09-16 12:45:08,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:08,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:45:08,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:45:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:45:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:08,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:08,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 62.0) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:45:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 12:45:08,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1890336043, now seen corresponding path program 1 times [2022-09-16 12:45:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:08,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931475751] [2022-09-16 12:45:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:08,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:08,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:08,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931475751] [2022-09-16 12:45:08,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931475751] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:08,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342867511] [2022-09-16 12:45:08,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:08,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:08,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:08,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:45:08,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 12:45:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:08,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 12:45:08,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:08,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 12:45:08,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342867511] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:45:08,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 12:45:08,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 12:45:08,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281883308] [2022-09-16 12:45:08,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:45:08,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 12:45:08,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:08,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 12:45:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 12:45:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:08,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:08,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 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) [2022-09-16 12:45:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:45:08,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:08,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:45:08,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:08,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:08,724 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2071520148, now seen corresponding path program 2 times [2022-09-16 12:45:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461244864] [2022-09-16 12:45:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:08,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:08,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:08,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461244864] [2022-09-16 12:45:08,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461244864] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:08,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303212536] [2022-09-16 12:45:08,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 12:45:08,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:08,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:08,907 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) [2022-09-16 12:45:08,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 12:45:09,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 12:45:09,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 12:45:09,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 12:45:09,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:09,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:45:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:09,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303212536] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:45:09,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:45:09,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2022-09-16 12:45:09,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038825784] [2022-09-16 12:45:09,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:45:09,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 12:45:09,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:45:09,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 12:45:09,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-09-16 12:45:09,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:09,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:45:09,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 20.40909090909091) internal successors, (449), 23 states have internal predecessors, (449), 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) [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:09,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:45:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:45:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:45:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:45:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 12:45:09,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 12:45:09,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:09,907 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-09-16 12:45:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:45:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash -887074548, now seen corresponding path program 3 times [2022-09-16 12:45:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:45:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377784212] [2022-09-16 12:45:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:45:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:45:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:45:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 0 proven. 1232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:45:10,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:45:10,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377784212] [2022-09-16 12:45:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377784212] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:45:10,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120183963] [2022-09-16 12:45:10,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 12:45:10,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:45:10,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:45:10,311 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:45:10,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 12:45:10,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-09-16 12:45:10,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 12:45:10,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 214 conjunts are in the unsatisfiable core [2022-09-16 12:45:10,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:45:10,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:45:11,800 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-09-16 12:45:11,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 107 [2022-09-16 12:45:15,602 INFO L356 Elim1Store]: treesize reduction 60, result has 49.2 percent of original size [2022-09-16 12:45:15,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 321 treesize of output 279 [2022-09-16 12:45:26,950 INFO L356 Elim1Store]: treesize reduction 499, result has 26.0 percent of original size [2022-09-16 12:45:26,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 35 case distinctions, treesize of input 622 treesize of output 625 [2022-09-16 12:45:39,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:45:39,941 INFO L356 Elim1Store]: treesize reduction 1186, result has 13.5 percent of original size [2022-09-16 12:45:39,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 63 case distinctions, treesize of input 621 treesize of output 651 [2022-09-16 12:45:56,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:45:56,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:45:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:45:58,414 INFO L356 Elim1Store]: treesize reduction 1969, result has 8.9 percent of original size [2022-09-16 12:45:58,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 6 disjoint index pairs (out of 105 index pairs), introduced 20 new quantified variables, introduced 114 case distinctions, treesize of input 739 treesize of output 773 [2022-09-16 12:46:19,510 INFO L356 Elim1Store]: treesize reduction 639, result has 24.2 percent of original size [2022-09-16 12:46:19,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 10 disjoint index pairs (out of 66 index pairs), introduced 16 new quantified variables, introduced 66 case distinctions, treesize of input 854 treesize of output 793