/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_2w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 12:46:32,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 12:46:32,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 12:46:32,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 12:46:32,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 12:46:32,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 12:46:32,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 12:46:33,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 12:46:33,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 12:46:33,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 12:46:33,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 12:46:33,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 12:46:33,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 12:46:33,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 12:46:33,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 12:46:33,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 12:46:33,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 12:46:33,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 12:46:33,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 12:46:33,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 12:46:33,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 12:46:33,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 12:46:33,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 12:46:33,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 12:46:33,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 12:46:33,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 12:46:33,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 12:46:33,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 12:46:33,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 12:46:33,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 12:46:33,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 12:46:33,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 12:46:33,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 12:46:33,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 12:46:33,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 12:46:33,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 12:46:33,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 12:46:33,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 12:46:33,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 12:46:33,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 12:46:33,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 12:46:33,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-09-16 12:46:33,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 12:46:33,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 12:46:33,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 12:46:33,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 12:46:33,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 12:46:33,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 12:46:33,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 12:46:33,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 12:46:33,088 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 12:46:33,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 12:46:33,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 12:46:33,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 12:46:33,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 12:46:33,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 12:46:33,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 12:46:33,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 12:46:33,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:46:33,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 12:46:33,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 12:46:33,093 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 12:46:33,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-16 12:46:33,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 12:46:33,093 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-09-16 12:46:33,093 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-09-16 12:46:33,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 12:46:33,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 12:46:33,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 12:46:33,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 12:46:33,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 12:46:33,326 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 12:46:33,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2022-09-16 12:46:33,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66ec525d/9a1ef0593c2c4e759d5b5695c48d3df4/FLAGa4f860549 [2022-09-16 12:46:33,917 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 12:46:33,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-2.i [2022-09-16 12:46:33,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66ec525d/9a1ef0593c2c4e759d5b5695c48d3df4/FLAGa4f860549 [2022-09-16 12:46:34,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a66ec525d/9a1ef0593c2c4e759d5b5695c48d3df4 [2022-09-16 12:46:34,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 12:46:34,225 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 12:46:34,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 12:46:34,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 12:46:34,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 12:46:34,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ef2e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34, skipping insertion in model container [2022-09-16 12:46:34,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 12:46:34,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 12:46:34,405 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 12:46:34,636 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_2w1r-2.i[39095,39108] [2022-09-16 12:46:34,638 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_2w1r-2.i[39180,39193] [2022-09-16 12:46:34,638 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_2w1r-2.i[39232,39245] [2022-09-16 12:46:34,718 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_2w1r-2.i[49285,49298] [2022-09-16 12:46:34,719 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_2w1r-2.i[49334,49347] [2022-09-16 12:46:34,721 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_2w1r-2.i[49462,49475] [2022-09-16 12:46:34,722 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_2w1r-2.i[49520,49533] [2022-09-16 12:46:34,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:46:34,740 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 12:46:34,751 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 12:46:34,776 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_2w1r-2.i[39095,39108] [2022-09-16 12:46:34,777 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_2w1r-2.i[39180,39193] [2022-09-16 12:46:34,777 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_2w1r-2.i[39232,39245] [2022-09-16 12:46:34,785 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_2w1r-2.i[49285,49298] [2022-09-16 12:46:34,786 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_2w1r-2.i[49334,49347] [2022-09-16 12:46:34,787 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_2w1r-2.i[49462,49475] [2022-09-16 12:46:34,787 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_2w1r-2.i[49520,49533] [2022-09-16 12:46:34,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:46:34,853 INFO L208 MainTranslator]: Completed translation [2022-09-16 12:46:34,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34 WrapperNode [2022-09-16 12:46:34,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 12:46:34,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 12:46:34,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 12:46:34,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 12:46:34,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,937 INFO L138 Inliner]: procedures = 309, calls = 63, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 216 [2022-09-16 12:46:34,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 12:46:34,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 12:46:34,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 12:46:34,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 12:46:34,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 12:46:34,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 12:46:34,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 12:46:34,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 12:46:34,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (1/1) ... [2022-09-16 12:46:34,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:46:34,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:35,017 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 12:46:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-09-16 12:46:35,054 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-09-16 12:46:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-09-16 12:46:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 12:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 12:46:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 12:46:35,057 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 12:46:35,047 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 12:46:35,244 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 12:46:35,246 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 12:46:35,621 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 12:46:35,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 12:46:35,634 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 12:46:35,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:46:35 BoogieIcfgContainer [2022-09-16 12:46:35,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 12:46:35,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 12:46:35,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 12:46:35,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 12:46:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:46:34" (1/3) ... [2022-09-16 12:46:35,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cfe23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:46:35, skipping insertion in model container [2022-09-16 12:46:35,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:46:34" (2/3) ... [2022-09-16 12:46:35,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cfe23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:46:35, skipping insertion in model container [2022-09-16 12:46:35,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:46:35" (3/3) ... [2022-09-16 12:46:35,645 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-2.i [2022-09-16 12:46:35,652 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 12:46:35,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 12:46:35,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-09-16 12:46:35,661 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 12:46:35,791 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 12:46:35,831 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 12:46:35,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 12:46:35,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:35,839 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 12:46:35,847 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 12:46:35,874 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 12:46:35,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnThread1of1ForFork1 ======== [2022-09-16 12:46:35,893 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;@3aae4c49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 12:46:35,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-09-16 12:46:36,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:36,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 843996879, now seen corresponding path program 1 times [2022-09-16 12:46:36,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:36,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410289923] [2022-09-16 12:46:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:36,316 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 12:46:36,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:36,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410289923] [2022-09-16 12:46:36,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410289923] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:36,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:36,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 12:46:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127069148] [2022-09-16 12:46:36,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:36,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:46:36,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:36,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:46:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:46:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:36,350 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:36,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 12:46:36,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:36,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 12:46:36,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -318950411, now seen corresponding path program 1 times [2022-09-16 12:46:36,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:36,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139098933] [2022-09-16 12:46:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:36,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:36,958 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 12:46:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:36,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139098933] [2022-09-16 12:46:36,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139098933] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:36,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:36,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-16 12:46:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554871978] [2022-09-16 12:46:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:36,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 12:46:36,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 12:46:36,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-09-16 12:46:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:36,962 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:36,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 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 12:46:36,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:36,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:37,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 12:46:37,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:37,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash 876089777, now seen corresponding path program 1 times [2022-09-16 12:46:37,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:37,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703339961] [2022-09-16 12:46:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:37,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:38,020 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 12:46:38,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:38,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703339961] [2022-09-16 12:46:38,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703339961] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:38,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:38,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 12:46:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296466341] [2022-09-16 12:46:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:38,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 12:46:38,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:38,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 12:46:38,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 12:46:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,024 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:38,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 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 12:46:38,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 12:46:38,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 12:46:38,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:38,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1388980095, now seen corresponding path program 1 times [2022-09-16 12:46:38,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:38,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528222082] [2022-09-16 12:46:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:38,310 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 12:46:38,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:38,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528222082] [2022-09-16 12:46:38,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528222082] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:38,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:38,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 12:46:38,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484763069] [2022-09-16 12:46:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:38,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 12:46:38,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 12:46:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 12:46:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:38,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 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 12:46:38,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-16 12:46:38,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 12:46:38,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash 103038791, now seen corresponding path program 1 times [2022-09-16 12:46:38,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:38,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522936761] [2022-09-16 12:46:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:38,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 12:46:38,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:38,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522936761] [2022-09-16 12:46:38,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522936761] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:38,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:38,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 12:46:38,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268937459] [2022-09-16 12:46:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:38,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:46:38,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:38,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:46:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:46:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:38,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 12:46:38,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 12:46:38,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:38,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1100764015, now seen corresponding path program 1 times [2022-09-16 12:46:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:38,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133568223] [2022-09-16 12:46:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:38,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:38,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133568223] [2022-09-16 12:46:38,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133568223] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:38,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292461002] [2022-09-16 12:46:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:38,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:38,739 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 12:46:38,779 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 12:46:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:38,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 12:46:38,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:38,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 12:46:38,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292461002] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:38,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 12:46:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 12:46:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096874076] [2022-09-16 12:46:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 12:46:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 12:46:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 12:46:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:38,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:38,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:39,082 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 12:46:39,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-09-16 12:46:39,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:39,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2097618029, now seen corresponding path program 1 times [2022-09-16 12:46:39,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:39,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118781769] [2022-09-16 12:46:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:39,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:39,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:39,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118781769] [2022-09-16 12:46:39,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118781769] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:39,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922807424] [2022-09-16 12:46:39,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:39,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:39,528 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 12:46:39,529 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 12:46:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:39,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjunts are in the unsatisfiable core [2022-09-16 12:46:39,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:39,773 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 13 treesize of output 9 [2022-09-16 12:46:39,859 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 19 treesize of output 7 [2022-09-16 12:46:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:39,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:46:39,966 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 30 treesize of output 24 [2022-09-16 12:46:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:40,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922807424] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:46:40,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:46:40,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 21 [2022-09-16 12:46:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181716387] [2022-09-16 12:46:40,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:46:40,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 12:46:40,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 12:46:40,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2022-09-16 12:46:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:40,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:40,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 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 12:46:40,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:40,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:40,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:40,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:40,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:40,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:40,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:40,531 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 12:46:40,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:40,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writer_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:40,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:40,694 INFO L85 PathProgramCache]: Analyzing trace with hash 601650232, now seen corresponding path program 1 times [2022-09-16 12:46:40,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:40,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147481981] [2022-09-16 12:46:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:40,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:40,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:40,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147481981] [2022-09-16 12:46:40,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147481981] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:40,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940039358] [2022-09-16 12:46:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:40,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:40,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:40,898 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 12:46:40,925 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 12:46:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:41,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2022-09-16 12:46:41,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:41,102 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 13 treesize of output 9 [2022-09-16 12:46:41,190 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 21 treesize of output 9 [2022-09-16 12:46:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:41,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:46:41,312 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 34 treesize of output 28 [2022-09-16 12:46:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:41,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940039358] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:46:41,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:46:41,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 23 [2022-09-16 12:46:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044368766] [2022-09-16 12:46:41,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:46:41,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-16 12:46:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-16 12:46:41,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2022-09-16 12:46:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:41,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:41,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 24 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 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:41,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:41,961 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 12:46:42,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:42,135 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:42,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash 439600169, now seen corresponding path program 1 times [2022-09-16 12:46:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:42,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154522579] [2022-09-16 12:46:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:42,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:42,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:42,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154522579] [2022-09-16 12:46:42,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154522579] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:42,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356835025] [2022-09-16 12:46:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:42,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:42,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:42,259 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 12:46:42,268 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 12:46:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:42,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-16 12:46:42,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:42,458 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-16 12:46:42,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 31 [2022-09-16 12:46:42,509 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:46:42,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 20 [2022-09-16 12:46:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:42,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:46:43,838 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 27 treesize of output 23 [2022-09-16 12:46:43,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-09-16 12:46:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:44,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356835025] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:46:44,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:46:44,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2022-09-16 12:46:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309148766] [2022-09-16 12:46:44,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:46:44,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 12:46:44,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 12:46:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=340, Unknown=4, NotChecked=0, Total=420 [2022-09-16 12:46:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:44,312 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:44,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.8) internal successors, (176), 21 states have internal predecessors, (176), 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 12:46:44,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:44,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:44,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:46:44,698 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 12:46:44,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:44,873 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writer_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:44,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:44,874 INFO L85 PathProgramCache]: Analyzing trace with hash 742704135, now seen corresponding path program 1 times [2022-09-16 12:46:44,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:44,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897416121] [2022-09-16 12:46:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:45,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:45,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897416121] [2022-09-16 12:46:45,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897416121] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:45,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933329055] [2022-09-16 12:46:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:45,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:45,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:45,035 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 12:46:45,057 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 12:46:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-16 12:46:45,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:45,259 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-16 12:46:45,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2022-09-16 12:46:45,302 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:46:45,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 22 [2022-09-16 12:46:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:45,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:46:47,437 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 31 treesize of output 27 [2022-09-16 12:46:47,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2022-09-16 12:46:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:47,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933329055] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:46:47,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:46:47,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2022-09-16 12:46:47,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621883344] [2022-09-16 12:46:47,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:46:47,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 12:46:47,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 12:46:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=341, Unknown=1, NotChecked=0, Total=420 [2022-09-16 12:46:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:47,529 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:47,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.85) internal successors, (177), 21 states have internal predecessors, (177), 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 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:46:47,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:46:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:46:53,651 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 12:46:53,843 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 12:46:53,844 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:53,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1728822111, now seen corresponding path program 1 times [2022-09-16 12:46:53,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:53,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505653295] [2022-09-16 12:46:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:53,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-09-16 12:46:53,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:53,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505653295] [2022-09-16 12:46:53,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505653295] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:46:53,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:46:53,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 12:46:53,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642813117] [2022-09-16 12:46:53,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:46:53,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 12:46:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:46:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 12:46:53,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 12:46:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:53,908 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:46:53,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:46:53,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:46:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:46:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:46:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:46:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:46:54,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 12:46:54,014 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:46:54,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:46:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 778895364, now seen corresponding path program 1 times [2022-09-16 12:46:54,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:46:54,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597750217] [2022-09-16 12:46:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:54,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:46:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:46:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:46:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597750217] [2022-09-16 12:46:54,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597750217] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:46:54,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956125558] [2022-09-16 12:46:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:46:54,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:46:54,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:46:54,567 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 12:46:54,568 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 12:46:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:46:54,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 68 conjunts are in the unsatisfiable core [2022-09-16 12:46:54,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:46:55,061 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 13 treesize of output 9 [2022-09-16 12:46:55,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-16 12:46:55,410 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 12:46:55,410 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 28 [2022-09-16 12:46:55,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-09-16 12:46:56,030 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 12:46:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 34 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 12:46:56,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:49:04,469 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 196 treesize of output 184 [2022-09-16 12:49:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 34 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 12:49:05,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956125558] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:49:05,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:49:05,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 18] total 51 [2022-09-16 12:49:05,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794191162] [2022-09-16 12:49:05,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:49:05,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-09-16 12:49:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:49:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-09-16 12:49:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2346, Unknown=110, NotChecked=0, Total=2652 [2022-09-16 12:49:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:49:05,067 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:49:05,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 9.294117647058824) internal successors, (474), 52 states have internal predecessors, (474), 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 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:49:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:51:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 12:51:43,767 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 12:51:43,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:51:43,947 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:51:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:51:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2070085296, now seen corresponding path program 1 times [2022-09-16 12:51:43,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:51:43,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632096168] [2022-09-16 12:51:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:51:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:51:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:51:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:51:44,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:51:44,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632096168] [2022-09-16 12:51:44,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632096168] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:51:44,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319855814] [2022-09-16 12:51:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:51:44,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:51:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:51:44,848 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 12:51:44,849 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 12:51:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:51:45,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 76 conjunts are in the unsatisfiable core [2022-09-16 12:51:45,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:51:45,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 12:51:46,501 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-16 12:51:46,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 31 [2022-09-16 12:51:46,746 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 12:51:46,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 12:51:47,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:51:47,434 INFO L356 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-09-16 12:51:47,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 44 [2022-09-16 12:51:47,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 12:51:47,586 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 12:51:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:51:47,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:51:47,620 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_446 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_446) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:51:47,656 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_445 Int) (v_ArrVal_446 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset| v_ArrVal_445)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_446) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:51:47,688 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_445 Int) (v_ArrVal_446 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset| v_ArrVal_445)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_446) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:51:47,701 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_445 Int) (v_ArrVal_446 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |c_reader_twoThread1of1ForFork0_~r~2#1.offset| v_ArrVal_445)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_446) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:51:48,233 INFO L356 Elim1Store]: treesize reduction 71, result has 47.8 percent of original size [2022-09-16 12:51:48,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 80 [2022-09-16 12:51:48,243 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:51:48,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 71 [2022-09-16 12:51:48,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:51:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:51:50,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319855814] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:51:50,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:51:50,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27, 25] total 67 [2022-09-16 12:51:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92501679] [2022-09-16 12:51:50,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:51:50,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-09-16 12:51:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:51:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-09-16 12:51:50,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=3673, Unknown=11, NotChecked=508, Total=4556 [2022-09-16 12:51:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:51:50,648 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:51:50,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 10.059701492537313) internal successors, (674), 68 states have internal predecessors, (674), 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 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:50,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:50,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:51:50,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:51:50,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:50,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-09-16 12:51:50,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:51:59,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:51:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 12:51:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:51:59,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 12:51:59,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 12:51:59,366 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:51:59,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:51:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -842894904, now seen corresponding path program 2 times [2022-09-16 12:51:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:51:59,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204693044] [2022-09-16 12:51:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:51:59,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:51:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:51:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 999 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:51:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:51:59,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204693044] [2022-09-16 12:51:59,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204693044] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:51:59,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35258600] [2022-09-16 12:51:59,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 12:51:59,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:51:59,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:51:59,589 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:51:59,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 12:51:59,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 12:51:59,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 12:51:59,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 48 conjunts are in the unsatisfiable core [2022-09-16 12:51:59,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:51:59,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 12:52:01,195 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-16 12:52:01,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 31 [2022-09-16 12:52:01,509 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 12:52:01,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 12:52:01,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:52:01,914 INFO L356 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-09-16 12:52:01,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 44 [2022-09-16 12:52:01,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 12:52:02,023 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 19 treesize of output 7 [2022-09-16 12:52:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 36 proven. 135 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-09-16 12:52:02,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:52:02,077 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:02,109 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (v_ArrVal_567 Int)) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset| v_ArrVal_567)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:02,139 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| Int) (v_ArrVal_567 Int)) (or (not (<= |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset|)) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| v_ArrVal_567)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646))) is different from false [2022-09-16 12:52:02,159 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_568 (Array Int Int)) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| Int) (v_ArrVal_567 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21|) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| v_ArrVal_567)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646))) is different from false [2022-09-16 12:52:03,010 INFO L356 Elim1Store]: treesize reduction 71, result has 47.8 percent of original size [2022-09-16 12:52:03,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 80 [2022-09-16 12:52:03,020 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:52:03,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 71 [2022-09-16 12:52:03,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:52:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 36 proven. 135 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-09-16 12:52:05,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35258600] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:52:05,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:52:05,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 21] total 50 [2022-09-16 12:52:05,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736074330] [2022-09-16 12:52:05,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:52:05,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-09-16 12:52:05,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:52:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-09-16 12:52:05,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1904, Unknown=11, NotChecked=364, Total=2450 [2022-09-16 12:52:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:05,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:52:05,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 13.9) internal successors, (695), 50 states have internal predecessors, (695), 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 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:28,509 WARN L833 $PredicateComparison]: unable to prove that (and (<= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (exists ((|writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6#1| Int)) (<= (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 4 (* |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6#1| 4))) 8)) (forall ((v_ArrVal_568 (Array Int Int)) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| Int) (v_ArrVal_567 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21|) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| v_ArrVal_567)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)))) is different from false [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:52:28,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-09-16 12:52:28,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 12:52:28,721 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:52:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:52:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1922964380, now seen corresponding path program 1 times [2022-09-16 12:52:28,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:52:28,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978686342] [2022-09-16 12:52:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:52:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:52:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:52:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 0 proven. 749 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-09-16 12:52:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:52:29,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978686342] [2022-09-16 12:52:29,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978686342] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:52:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784120148] [2022-09-16 12:52:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:52:29,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:52:29,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:52:29,788 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:52:29,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 12:52:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:52:29,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 66 conjunts are in the unsatisfiable core [2022-09-16 12:52:30,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:52:30,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 12:52:31,363 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 13 treesize of output 9 [2022-09-16 12:52:31,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-16 12:52:31,716 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 12:52:31,716 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 28 [2022-09-16 12:52:31,981 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 12:52:31,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 12:52:32,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-09-16 12:52:32,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 12:52:32,562 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 12:52:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 179 proven. 105 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-09-16 12:52:32,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:52:32,609 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_676 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_676) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:32,646 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_674 Int) (v_ArrVal_676 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset| v_ArrVal_674)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_676) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:32,673 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_674 Int) (v_ArrVal_676 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset| v_ArrVal_674)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_676) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:32,684 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_674 Int) (v_ArrVal_676 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |c_reader_twoThread1of1ForFork0_~r~2#1.offset| v_ArrVal_674)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_676) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)) is different from false [2022-09-16 12:52:33,802 INFO L356 Elim1Store]: treesize reduction 158, result has 41.3 percent of original size [2022-09-16 12:52:33,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 119 treesize of output 149 [2022-09-16 12:52:33,835 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:52:33,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 139 [2022-09-16 12:52:33,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 12:52:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 102 proven. 105 refuted. 77 times theorem prover too weak. 479 trivial. 0 not checked. [2022-09-16 12:52:35,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784120148] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:52:35,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:52:35,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 20, 21] total 66 [2022-09-16 12:52:35,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877890676] [2022-09-16 12:52:35,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:52:35,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-16 12:52:35,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:52:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-16 12:52:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=3596, Unknown=27, NotChecked=500, Total=4422 [2022-09-16 12:52:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:35,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:52:35,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 10.242424242424242) internal successors, (676), 67 states have internal predecessors, (676), 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 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:35,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:52:35,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:52:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-09-16 12:52:51,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 12:52:51,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 12:52:51,744 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:52:51,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:52:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1497358927, now seen corresponding path program 1 times [2022-09-16 12:52:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:52:51,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704227341] [2022-09-16 12:52:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:52:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:52:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:52:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2022-09-16 12:52:51,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:52:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704227341] [2022-09-16 12:52:51,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704227341] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:52:51,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:52:51,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 12:52:51,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236421366] [2022-09-16 12:52:51,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:52:51,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 12:52:51,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:52:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 12:52:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 12:52:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:51,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:52:51,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-09-16 12:52:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:52:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-09-16 12:52:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:52:53,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 12:52:53,649 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:52:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:52:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash 652635838, now seen corresponding path program 1 times [2022-09-16 12:52:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:52:53,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950764642] [2022-09-16 12:52:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:52:53,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:52:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:52:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 793 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-09-16 12:52:54,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:52:54,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950764642] [2022-09-16 12:52:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950764642] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:52:54,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185473636] [2022-09-16 12:52:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:52:54,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:52:54,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:52:54,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:52:54,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 12:52:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:52:55,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 72 conjunts are in the unsatisfiable core [2022-09-16 12:52:55,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:52:55,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 12:52:56,230 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 13 treesize of output 9 [2022-09-16 12:52:56,501 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 12:52:56,502 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 28 [2022-09-16 12:52:56,737 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 12:52:56,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 12:52:57,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:52:57,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-09-16 12:52:57,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 12:52:57,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 12:52:57,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-09-16 12:52:57,644 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 19 treesize of output 7 [2022-09-16 12:52:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 189 proven. 149 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2022-09-16 12:52:57,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:53:10,792 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse0 (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647))) is different from false [2022-09-16 12:53:10,866 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< (select (select (let ((.cse0 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.base|) |c_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|))) is different from false [2022-09-16 12:53:10,917 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse0 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (not (<= |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset|)))) is different from false [2022-09-16 12:53:10,946 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse0 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse0 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29|))) is different from false [2022-09-16 12:53:16,779 INFO L356 Elim1Store]: treesize reduction 158, result has 41.3 percent of original size [2022-09-16 12:53:16,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 204 treesize of output 160 [2022-09-16 12:53:16,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:53:16,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 404 treesize of output 406 [2022-09-16 12:53:16,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 310 [2022-09-16 12:53:17,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-09-16 12:53:17,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 170 [2022-09-16 12:53:17,433 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:53:17,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 208 treesize of output 196 [2022-09-16 12:53:17,550 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:53:17,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 346 treesize of output 326 [2022-09-16 12:53:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 102 proven. 105 refuted. 77 times theorem prover too weak. 480 trivial. 44 not checked. [2022-09-16 12:53:21,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185473636] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:53:21,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:53:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 24, 24] total 81 [2022-09-16 12:53:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325158766] [2022-09-16 12:53:21,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:53:21,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-09-16 12:53:21,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:53:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-09-16 12:53:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=5583, Unknown=30, NotChecked=620, Total=6642 [2022-09-16 12:53:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:53:21,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:53:21,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 10.493827160493828) internal successors, (850), 82 states have internal predecessors, (850), 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 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:53:21,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:53:33,782 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20))) (let ((.cse0 (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) .cse2))) (and (<= |c_writer_fnThread1of1ForFork1_ring_enqueue_~x#1| 8) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.base| |c_writer_fnThread1of1ForFork1_~r~1#1.base|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_~r~1#1.base|) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 0) (<= .cse0 3) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_~arg#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (<= |c_writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7#1| 3) (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse1 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29|))) (<= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_#in~arg#1.offset| 0) (= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| 0) (= (select |c_#valid| |c_reader_twoThread1of1ForFork0_~arg#1.base|) 1) (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~x#1| 8) (= (select |c_#valid| |c_ULTIMATE.start_main_~#r~3#1.base|) 1) (= |c_ULTIMATE.start_main_~#r~3#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (= (select |c_#valid| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) 1) (= |c_writer_fnThread1of1ForFork1_~arg#1.offset| 0) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.offset|) (<= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| |c_writer_fnThread1of1ForFork1_~r~1#1.offset|) (<= .cse0 2147483646) (= |c_reader_twoThread1of1ForFork0_~arg#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (<= (select (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~arg#1.base|) .cse2) 3) (= |c_ULTIMATE.start_main_~#r~3#1.offset| 0) (not (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_reader_twoThread1of1ForFork0_~#read~0#1.base|)) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.offset| 0) (<= |c_reader_twoThread1of1ForFork0_~arg#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_~r~1#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| 0) (<= |c_writer_fnThread1of1ForFork1_~i~1#1| 7) (<= (select (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) .cse2) 3) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_#in~arg#1.base|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| 0) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (= |c_reader_twoThread1of1ForFork0_~arg#1.offset| 0)))) is different from false [2022-09-16 12:53:34,206 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)))) (and (= |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 0) (<= .cse0 3) (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse1 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29|))) (<= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| 0) (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= .cse0 2147483646) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (not (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_reader_twoThread1of1ForFork0_~#read~0#1.base|)))) is different from false [2022-09-16 12:53:35,753 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)))) (and (not (= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| |c_reader_twoThread1of1ForFork0_~#read~0#1.base|)) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 0) (<= .cse0 3) (<= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| 0) (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse1 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (not (<= |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset|)))) (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset| 0) (<= .cse0 2147483646) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (<= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset| |c_reader_twoThread1of1ForFork0_~r~2#1.offset|) (= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| |c_reader_twoThread1of1ForFork0_~r~2#1.base|))) is different from false [2022-09-16 12:53:47,434 WARN L233 SmtUtils]: Spent 11.62s on a formula simplification. DAG size of input: 57 DAG size of output: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-16 12:53:58,694 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20))) (let ((.cse0 (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) .cse2))) (and (<= |c_writer_fnThread1of1ForFork1_ring_enqueue_~x#1| 8) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.base| |c_writer_fnThread1of1ForFork1_~r~1#1.base|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_~r~1#1.base|) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 0) (<= .cse0 3) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_~arg#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (<= (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_~r~1#1.base|) (+ |c_writer_fnThread1of1ForFork1_~r~1#1.offset| 20)) 3) (forall ((|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| Int) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| Int) (v_ArrVal_838 Int) (v_ArrVal_840 (Array Int Int)) (v_ArrVal_842 Int)) (or (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27|) (< (select (select (let ((.cse1 (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29| v_ArrVal_838)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_840))) (store .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base| (store (select .cse1 |c_reader_twoThread1of1ForFork0_~r~2#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_27| v_ArrVal_842))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483647) (< |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_29|))) (<= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_#in~arg#1.offset| 0) (= |c_reader_twoThread1of1ForFork0_~r~2#1.offset| 0) (= (select |c_#valid| |c_reader_twoThread1of1ForFork0_~arg#1.base|) 1) (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~x#1| 8) (= (select |c_#valid| |c_ULTIMATE.start_main_~#r~3#1.base|) 1) (= |c_ULTIMATE.start_main_~#r~3#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (= (select |c_#valid| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) 1) (= |c_writer_fnThread1of1ForFork1_~arg#1.offset| 0) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.offset|) (<= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| |c_writer_fnThread1of1ForFork1_~r~1#1.offset|) (<= .cse0 2147483646) (= |c_reader_twoThread1of1ForFork0_~arg#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (<= (select (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_~arg#1.base|) .cse2) 3) (= |c_ULTIMATE.start_main_~#r~3#1.offset| 0) (not (= |c_reader_twoThread1of1ForFork0_~r~2#1.base| |c_reader_twoThread1of1ForFork0_~#read~0#1.base|)) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.offset| 0) (<= |c_reader_twoThread1of1ForFork0_~arg#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_writer_fnThread1of1ForFork1_~r~1#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (= |c_writer_fnThread1of1ForFork1_~r~1#1.offset| 0) (<= |c_writer_fnThread1of1ForFork1_~i~1#1| 7) (<= (select (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) .cse2) 3) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_#in~arg#1.base|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_#in~arg#1.offset| 0) (= |c_writer_fnThread1of1ForFork1_ring_enqueue_#in~r#1.base| |c_reader_twoThread1of1ForFork0_#in~arg#1.base|) (= |c_reader_twoThread1of1ForFork0_~arg#1.offset| 0)))) is different from false [2022-09-16 12:53:59,074 WARN L833 $PredicateComparison]: unable to prove that (and (<= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset|) (= |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (<= (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646) (not (= |c_reader_twoThread1of1ForFork0_~#read~0#1.base| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|)) (exists ((|writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6#1| Int)) (<= (select (select |c_#memory_int| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 4 (* |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6#1| 4))) 8)) (forall ((v_ArrVal_568 (Array Int Int)) (|v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| Int) (v_ArrVal_567 Int)) (or (not (<= |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.offset|)) (<= (select (select (store (store |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base| (store (select |c_#memory_int| |c_reader_twoThread1of1ForFork0_ring_dequeue_#in~r#1.base|) |v_reader_twoThread1of1ForFork0_ring_dequeue_~r#1.offset_21| v_ArrVal_567)) |c_reader_twoThread1of1ForFork0_~#read~0#1.base| v_ArrVal_568) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 2147483646)))) is different from false [2022-09-16 12:53:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:53:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-09-16 12:53:59,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 12:53:59,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 12:53:59,686 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-09-16 12:53:59,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:53:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash 805217365, now seen corresponding path program 1 times [2022-09-16 12:53:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:53:59,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877715129] [2022-09-16 12:53:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:53:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:53:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:54:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 0 proven. 749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:54:00,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:54:00,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877715129] [2022-09-16 12:54:00,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877715129] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:54:00,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889056503] [2022-09-16 12:54:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:54:00,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:54:00,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:54:00,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:54:00,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 12:54:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:54:00,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 59 conjunts are in the unsatisfiable core [2022-09-16 12:54:00,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:54:01,079 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 13 treesize of output 9 [2022-09-16 12:54:01,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-16 12:54:01,281 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 12:54:01,282 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 28 [2022-09-16 12:54:01,639 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 12:54:01,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 28 [2022-09-16 12:54:01,662 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 19 treesize of output 7 [2022-09-16 12:54:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 179 proven. 105 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-09-16 12:54:01,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:59:25,532 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 12:59:25,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1494 treesize of output 1445 [2022-09-16 12:59:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 102 proven. 182 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-09-16 12:59:33,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889056503] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:59:33,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:59:33,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 18, 19] total 62 [2022-09-16 12:59:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977492647] [2022-09-16 12:59:33,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:59:33,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-09-16 12:59:33,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:59:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-09-16 12:59:33,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3480, Unknown=178, NotChecked=0, Total=3906 [2022-09-16 12:59:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 12:59:33,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 12:59:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 8.016129032258064) internal successors, (497), 63 states have internal predecessors, (497), 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 12:59:33,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:59:33,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:59:33,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:59:33,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 146 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-09-16 12:59:33,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-09-16 13:00:35,899 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 13:00:35,900 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 13:00:35,900 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 13:00:36,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-09-16 13:00:36,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 13:00:37,111 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-09-16 13:00:37,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-09-16 13:00:37,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 13:00:37,140 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-09-16 13:00:37,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-09-16 13:00:37,143 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-09-16 13:00:37,143 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-09-16 13:00:37,149 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 13:00:37,150 INFO L307 ceAbstractionStarter]: Result for error location writer_fnThread1of1ForFork1 was TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT (1/3) [2022-09-16 13:00:37,152 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 13:00:37,152 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 13:00:37,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:00:37 BasicIcfg [2022-09-16 13:00:37,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 13:00:37,155 INFO L158 Benchmark]: Toolchain (without parser) took 842930.10ms. Allocated memory was 264.2MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 234.9MB in the beginning and 978.1MB in the end (delta: -743.2MB). Peak memory consumption was 471.3MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,155 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 13:00:37,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.26ms. Allocated memory is still 264.2MB. Free memory was 234.6MB in the beginning and 209.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.13ms. Allocated memory is still 264.2MB. Free memory was 209.7MB in the beginning and 206.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,156 INFO L158 Benchmark]: Boogie Preprocessor took 33.14ms. Allocated memory is still 264.2MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,157 INFO L158 Benchmark]: RCFGBuilder took 662.85ms. Allocated memory is still 264.2MB. Free memory was 204.4MB in the beginning and 182.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,157 INFO L158 Benchmark]: TraceAbstraction took 841515.94ms. Allocated memory was 264.2MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 181.9MB in the beginning and 978.1MB in the end (delta: -796.2MB). Peak memory consumption was 419.1MB. Max. memory is 8.0GB. [2022-09-16 13:00:37,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 628.26ms. Allocated memory is still 264.2MB. Free memory was 234.6MB in the beginning and 209.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 84.13ms. Allocated memory is still 264.2MB. Free memory was 209.7MB in the beginning and 206.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.14ms. Allocated memory is still 264.2MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 662.85ms. Allocated memory is still 264.2MB. Free memory was 204.4MB in the beginning and 182.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 841515.94ms. Allocated memory was 264.2MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 181.9MB in the beginning and 978.1MB in the end (delta: -796.2MB). Peak memory consumption was 419.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 665681, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 89983, negative conditional: 89803, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 592910, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 17212, negative conditional: 17032, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 592910, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 17212, negative conditional: 17032, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 203879, negative unconditional: 19061, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 138145, negative unconditional: 84795, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 138145, negative unconditional: 84795, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28682, positive: 27598, positive conditional: 47, positive unconditional: 27551, negative: 1084, negative conditional: 904, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28682, positive: 27550, positive conditional: 0, positive unconditional: 27550, negative: 1132, negative conditional: 0, negative unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1132, positive: 48, positive conditional: 47, positive unconditional: 1, negative: 1068, negative conditional: 888, negative unconditional: 180, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9722, positive: 131, positive conditional: 94, positive unconditional: 36, negative: 2098, negative conditional: 1785, negative unconditional: 313, unknown: 7493, unknown conditional: 7493, unknown unconditional: 0] ], Cache Queries: [ total: 798638, positive: 548100, positive conditional: 1802, positive unconditional: 546298, negative: 221856, negative conditional: 137241, negative unconditional: 84615, unknown: 28682, unknown conditional: 951, unknown unconditional: 27731] , Statistics on independence cache: Total cache size (in pairs): 28682, Positive cache size: 27598, Positive conditional cache size: 47, Positive unconditional cache size: 27551, Negative cache size: 1084, Negative conditional cache size: 904, Negative unconditional cache size: 180, Eliminated conditions: 65734, Maximal queried relation: 15, Independence queries for same thread: 72771 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.9s, Number of persistent set computation: 13567, Number of trivial persistent sets: 5484, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46018, positive: 45838, positive conditional: 0, positive unconditional: 45838, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 665681, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 89983, negative conditional: 89803, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 592910, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 17212, negative conditional: 17032, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 592910, positive: 575698, positive conditional: 529860, positive unconditional: 45838, negative: 17212, negative conditional: 17032, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 203879, negative unconditional: 19061, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 138145, negative unconditional: 84795, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 798638, positive: 575698, positive conditional: 1849, positive unconditional: 573849, negative: 222940, negative conditional: 138145, negative unconditional: 84795, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28682, positive: 27598, positive conditional: 47, positive unconditional: 27551, negative: 1084, negative conditional: 904, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28682, positive: 27550, positive conditional: 0, positive unconditional: 27550, negative: 1132, negative conditional: 0, negative unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1132, positive: 48, positive conditional: 47, positive unconditional: 1, negative: 1068, negative conditional: 888, negative unconditional: 180, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9722, positive: 131, positive conditional: 94, positive unconditional: 36, negative: 2098, negative conditional: 1785, negative unconditional: 313, unknown: 7493, unknown conditional: 7493, unknown unconditional: 0] ], Cache Queries: [ total: 798638, positive: 548100, positive conditional: 1802, positive unconditional: 546298, negative: 221856, negative conditional: 137241, negative unconditional: 84615, unknown: 28682, unknown conditional: 951, unknown unconditional: 27731] , Statistics on independence cache: Total cache size (in pairs): 28682, Positive cache size: 27598, Positive conditional cache size: 47, Positive unconditional cache size: 27551, Negative cache size: 1084, Negative conditional cache size: 904, Negative unconditional cache size: 180, Eliminated conditions: 65734, Maximal queried relation: 15, Independence queries for same thread: 72771 - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: writer_fnThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 398 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 841.3s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 319.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 769, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 517.5s InterpolantComputationTime, 5504 NumberOfCodeBlocks, 5243 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 7708 ConstructedInterpolants, 1550 QuantifiedInterpolants, 113122 SizeOfPredicates, 262 NumberOfNonLiveVariables, 4432 ConjunctsInSsa, 456 ConjunctsInUnsatCore, 39 InterpolantComputations, 8 PerfectInterpolantSequences, 7896/12671 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown