/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:14:53,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:14:53,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:14:53,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:14:53,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:14:53,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:14:53,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:14:53,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:14:53,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:14:53,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:14:53,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:14:53,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:14:53,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:14:53,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:14:53,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:14:53,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:14:53,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:14:53,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:14:53,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:14:53,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:14:53,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:14:53,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:14:53,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:14:53,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:14:53,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:14:53,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:14:53,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:14:53,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:14:53,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:14:53,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:14:53,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:14:53,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:14:53,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:14:53,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:14:53,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:14:53,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:14:53,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:14:53,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:14:53,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:14:53,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:14:53,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:14:53,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:14:53,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:14:53,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:14:53,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:14:53,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:14:53,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:14:53,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:14:53,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:14:53,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:14:53,553 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:14:53,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:14:53,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:14:53,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:14:53,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:14:53,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:14:53,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:14:53,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:14:53,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:14:53,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:14:53,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:14:53,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:14:53,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:14:53,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:14:53,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:14:53,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:14:53,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:14:53,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:14:53,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:14:53,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:14:53,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:14:53,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:14:53,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:14:53,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:14:53,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:14:53,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:14:53,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:14:54,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:14:54,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:14:54,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:14:54,025 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:14:54,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-10-15 21:14:54,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c44fe28/d46110e07ff7437694b97ce4320ac1e8/FLAGe2e0a0c44 [2022-10-15 21:14:55,344 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:14:55,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-10-15 21:14:55,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c44fe28/d46110e07ff7437694b97ce4320ac1e8/FLAGe2e0a0c44 [2022-10-15 21:14:55,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c44fe28/d46110e07ff7437694b97ce4320ac1e8 [2022-10-15 21:14:55,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:14:55,715 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:14:55,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:14:55,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:14:55,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:14:55,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:55" (1/1) ... [2022-10-15 21:14:55,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:55, skipping insertion in model container [2022-10-15 21:14:55,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:55" (1/1) ... [2022-10-15 21:14:55,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:14:55,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:14:57,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[160997,161010] [2022-10-15 21:14:57,837 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-15 21:14:57,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:14:57,870 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:14:58,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[160997,161010] [2022-10-15 21:14:58,416 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-15 21:14:58,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:14:58,578 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:14:58,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58 WrapperNode [2022-10-15 21:14:58,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:14:58,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:14:58,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:14:58,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:14:58,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,826 INFO L138 Inliner]: procedures = 184, calls = 840, calls flagged for inlining = 74, calls inlined = 63, statements flattened = 2190 [2022-10-15 21:14:58,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:14:58,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:14:58,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:14:58,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:14:58,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:59,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:59,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:59,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:59,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:14:59,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:14:59,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:14:59,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:14:59,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:59,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:14:59,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:59,185 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) [2022-10-15 21:14:59,270 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 [2022-10-15 21:14:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2022-10-15 21:14:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2022-10-15 21:14:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:14:59,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:14:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2022-10-15 21:14:59,343 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2022-10-15 21:14:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-15 21:14:59,343 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-15 21:14:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2022-10-15 21:14:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2022-10-15 21:14:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:14:59,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:14:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:14:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-15 21:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-15 21:14:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2022-10-15 21:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2022-10-15 21:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2022-10-15 21:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2022-10-15 21:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-10-15 21:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-10-15 21:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2022-10-15 21:14:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2022-10-15 21:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2022-10-15 21:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2022-10-15 21:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2022-10-15 21:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2022-10-15 21:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:14:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2022-10-15 21:14:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2022-10-15 21:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2022-10-15 21:14:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2022-10-15 21:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-15 21:14:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-15 21:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-15 21:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-15 21:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:14:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:14:59,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2022-10-15 21:14:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2022-10-15 21:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:14:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-10-15 21:14:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-10-15 21:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:14:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2022-10-15 21:14:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2022-10-15 21:14:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:14:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:14:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:14:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:14:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:14:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2022-10-15 21:14:59,360 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2022-10-15 21:14:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:14:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:14:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:14:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:14:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-15 21:14:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-10-15 21:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-10-15 21:14:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-15 21:14:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-15 21:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-15 21:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:14:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-15 21:14:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-15 21:14:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:14:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:14:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:14:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:14:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2022-10-15 21:14:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2022-10-15 21:14:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2022-10-15 21:14:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2022-10-15 21:14:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:14:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:14:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-10-15 21:14:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-10-15 21:14:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-10-15 21:14:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-10-15 21:14:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:14:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:14:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-10-15 21:14:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-10-15 21:14:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:14:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:14:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2022-10-15 21:14:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2022-10-15 21:14:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2022-10-15 21:14:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2022-10-15 21:14:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2022-10-15 21:14:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2022-10-15 21:14:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-15 21:14:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-15 21:14:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:14:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:14:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:14:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:14:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:14:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:14:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2022-10-15 21:14:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2022-10-15 21:14:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2022-10-15 21:14:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2022-10-15 21:14:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:14:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2022-10-15 21:14:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2022-10-15 21:14:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:14:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:14:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:14:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:14:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:14:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:14:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2022-10-15 21:14:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2022-10-15 21:14:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2022-10-15 21:14:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2022-10-15 21:14:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:14:59,395 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:15:00,145 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:15:00,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:15:00,948 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:15:03,178 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:15:03,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:15:03,200 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:15:03,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:03 BoogieIcfgContainer [2022-10-15 21:15:03,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:15:03,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:15:03,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:15:03,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:15:03,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:14:55" (1/3) ... [2022-10-15 21:15:03,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3772df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:03, skipping insertion in model container [2022-10-15 21:15:03,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58" (2/3) ... [2022-10-15 21:15:03,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3772df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:03, skipping insertion in model container [2022-10-15 21:15:03,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:03" (3/3) ... [2022-10-15 21:15:03,219 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-10-15 21:15:03,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:15:03,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2022-10-15 21:15:03,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:15:03,428 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=FINITE_AUTOMATA, 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;@63127a7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:15:03,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-10-15 21:15:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 1026 states, 698 states have (on average 1.4355300859598854) internal successors, (1002), 788 states have internal predecessors, (1002), 193 states have call successors, (193), 61 states have call predecessors, (193), 60 states have return successors, (190), 189 states have call predecessors, (190), 190 states have call successors, (190) [2022-10-15 21:15:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 21:15:03,467 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:03,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:03,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1100275368, now seen corresponding path program 1 times [2022-10-15 21:15:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:03,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603305915] [2022-10-15 21:15:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:15:04,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:04,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603305915] [2022-10-15 21:15:04,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603305915] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:04,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:04,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:04,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197650263] [2022-10-15 21:15:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:04,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:04,381 INFO L87 Difference]: Start difference. First operand has 1026 states, 698 states have (on average 1.4355300859598854) internal successors, (1002), 788 states have internal predecessors, (1002), 193 states have call successors, (193), 61 states have call predecessors, (193), 60 states have return successors, (190), 189 states have call predecessors, (190), 190 states have call successors, (190) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:15:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:07,553 INFO L93 Difference]: Finished difference Result 2229 states and 3109 transitions. [2022-10-15 21:15:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:07,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-10-15 21:15:07,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:07,612 INFO L225 Difference]: With dead ends: 2229 [2022-10-15 21:15:07,613 INFO L226 Difference]: Without dead ends: 1121 [2022-10-15 21:15:07,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:07,644 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 492 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:07,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 2563 Invalid, 1262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [236 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-15 21:15:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-10-15 21:15:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1013. [2022-10-15 21:15:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 703 states have (on average 1.3627311522048364) internal successors, (958), 776 states have internal predecessors, (958), 186 states have call successors, (186), 62 states have call predecessors, (186), 62 states have return successors, (186), 185 states have call predecessors, (186), 186 states have call successors, (186) [2022-10-15 21:15:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1330 transitions. [2022-10-15 21:15:07,868 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1330 transitions. Word has length 26 [2022-10-15 21:15:07,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:07,869 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1330 transitions. [2022-10-15 21:15:07,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:15:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1330 transitions. [2022-10-15 21:15:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 21:15:07,874 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:07,874 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:07,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:15:07,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash -677388144, now seen corresponding path program 1 times [2022-10-15 21:15:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:07,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14159844] [2022-10-15 21:15:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:08,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:08,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:08,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:08,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14159844] [2022-10-15 21:15:08,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14159844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:08,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:08,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:15:08,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048958884] [2022-10-15 21:15:08,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:08,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:08,375 INFO L87 Difference]: Start difference. First operand 1013 states and 1330 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:15:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:12,496 INFO L93 Difference]: Finished difference Result 2211 states and 3015 transitions. [2022-10-15 21:15:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:12,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-10-15 21:15:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:12,523 INFO L225 Difference]: With dead ends: 2211 [2022-10-15 21:15:12,523 INFO L226 Difference]: Without dead ends: 2207 [2022-10-15 21:15:12,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:12,528 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 1922 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:12,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 2705 Invalid, 1713 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [548 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-15 21:15:12,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2022-10-15 21:15:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1935. [2022-10-15 21:15:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1387 states have (on average 1.3640951694304253) internal successors, (1892), 1472 states have internal predecessors, (1892), 366 states have call successors, (366), 120 states have call predecessors, (366), 120 states have return successors, (366), 364 states have call predecessors, (366), 366 states have call successors, (366) [2022-10-15 21:15:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2624 transitions. [2022-10-15 21:15:12,769 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2624 transitions. Word has length 50 [2022-10-15 21:15:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:12,770 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2624 transitions. [2022-10-15 21:15:12,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:15:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2624 transitions. [2022-10-15 21:15:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 21:15:12,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:12,778 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:12,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:15:12,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:12,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash 648775465, now seen corresponding path program 1 times [2022-10-15 21:15:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:12,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212000381] [2022-10-15 21:15:12,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:12,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212000381] [2022-10-15 21:15:13,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212000381] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:13,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:13,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951490245] [2022-10-15 21:15:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:13,068 INFO L87 Difference]: Start difference. First operand 1935 states and 2624 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:17,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:15:18,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:18,557 INFO L93 Difference]: Finished difference Result 5701 states and 7897 transitions. [2022-10-15 21:15:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:18,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-10-15 21:15:18,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:18,603 INFO L225 Difference]: With dead ends: 5701 [2022-10-15 21:15:18,604 INFO L226 Difference]: Without dead ends: 3795 [2022-10-15 21:15:18,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:18,620 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 1422 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 410 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:18,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 3362 Invalid, 1703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 1292 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-10-15 21:15:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-10-15 21:15:18,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3349. [2022-10-15 21:15:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 2455 states have (on average 1.355600814663951) internal successors, (3328), 2550 states have internal predecessors, (3328), 606 states have call successors, (606), 226 states have call predecessors, (606), 226 states have return successors, (606), 602 states have call predecessors, (606), 606 states have call successors, (606) [2022-10-15 21:15:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4540 transitions. [2022-10-15 21:15:18,896 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4540 transitions. Word has length 61 [2022-10-15 21:15:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:18,899 INFO L495 AbstractCegarLoop]: Abstraction has 3349 states and 4540 transitions. [2022-10-15 21:15:18,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4540 transitions. [2022-10-15 21:15:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 21:15:18,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:18,913 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:18,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:15:18,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1009938407, now seen corresponding path program 1 times [2022-10-15 21:15:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:18,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934206404] [2022-10-15 21:15:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:15:19,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:19,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934206404] [2022-10-15 21:15:19,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934206404] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:19,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:19,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:19,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643624114] [2022-10-15 21:15:19,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:19,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:19,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:19,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:19,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:19,306 INFO L87 Difference]: Start difference. First operand 3349 states and 4540 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:15:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:23,039 INFO L93 Difference]: Finished difference Result 6250 states and 8544 transitions. [2022-10-15 21:15:23,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:23,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2022-10-15 21:15:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:23,069 INFO L225 Difference]: With dead ends: 6250 [2022-10-15 21:15:23,070 INFO L226 Difference]: Without dead ends: 2930 [2022-10-15 21:15:23,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:23,088 INFO L413 NwaCegarLoop]: 1403 mSDtfsCounter, 1787 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:23,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 2466 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-15 21:15:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-10-15 21:15:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2577. [2022-10-15 21:15:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 1873 states have (on average 1.3395621996796583) internal successors, (2509), 1960 states have internal predecessors, (2509), 469 states have call successors, (469), 173 states have call predecessors, (469), 173 states have return successors, (469), 466 states have call predecessors, (469), 469 states have call successors, (469) [2022-10-15 21:15:23,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 3447 transitions. [2022-10-15 21:15:23,275 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 3447 transitions. Word has length 69 [2022-10-15 21:15:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:23,276 INFO L495 AbstractCegarLoop]: Abstraction has 2577 states and 3447 transitions. [2022-10-15 21:15:23,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:15:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 3447 transitions. [2022-10-15 21:15:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 21:15:23,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:23,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:23,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:15:23,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1942163553, now seen corresponding path program 1 times [2022-10-15 21:15:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:23,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249632658] [2022-10-15 21:15:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:23,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:23,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249632658] [2022-10-15 21:15:23,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249632658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:15:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174499282] [2022-10-15 21:15:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:23,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:15:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:15:23,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:15:23,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:15:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:24,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:15:24,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:15:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 21:15:24,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:15:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:24,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174499282] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:15:24,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:15:24,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-15 21:15:24,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40118301] [2022-10-15 21:15:24,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:15:24,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:15:24,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:24,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:15:24,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:15:24,348 INFO L87 Difference]: Start difference. First operand 2577 states and 3447 transitions. Second operand has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-15 21:15:32,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:15:36,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:36,627 INFO L93 Difference]: Finished difference Result 7702 states and 10506 transitions. [2022-10-15 21:15:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 21:15:36,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 69 [2022-10-15 21:15:36,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:36,702 INFO L225 Difference]: With dead ends: 7702 [2022-10-15 21:15:36,702 INFO L226 Difference]: Without dead ends: 7700 [2022-10-15 21:15:36,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:15:36,717 INFO L413 NwaCegarLoop]: 1836 mSDtfsCounter, 8519 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 5252 mSolverCounterSat, 2358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9106 SdHoareTripleChecker+Valid, 5041 SdHoareTripleChecker+Invalid, 7610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2358 IncrementalHoareTripleChecker+Valid, 5252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:36,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9106 Valid, 5041 Invalid, 7610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2358 Valid, 5252 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-10-15 21:15:36,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7700 states. [2022-10-15 21:15:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7700 to 5044. [2022-10-15 21:15:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5044 states, 3709 states have (on average 1.33998382313292) internal successors, (4970), 3821 states have internal predecessors, (4970), 932 states have call successors, (932), 342 states have call predecessors, (932), 342 states have return successors, (932), 926 states have call predecessors, (932), 932 states have call successors, (932) [2022-10-15 21:15:37,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 6834 transitions. [2022-10-15 21:15:37,342 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 6834 transitions. Word has length 69 [2022-10-15 21:15:37,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:37,343 INFO L495 AbstractCegarLoop]: Abstraction has 5044 states and 6834 transitions. [2022-10-15 21:15:37,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-15 21:15:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 6834 transitions. [2022-10-15 21:15:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 21:15:37,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:37,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:37,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:15:37,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:15:37,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1422830647, now seen corresponding path program 1 times [2022-10-15 21:15:37,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:37,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587690518] [2022-10-15 21:15:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:37,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:15:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:37,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:37,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587690518] [2022-10-15 21:15:37,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587690518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:37,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:37,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:37,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140835710] [2022-10-15 21:15:37,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:37,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:37,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:37,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:37,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:37,896 INFO L87 Difference]: Start difference. First operand 5044 states and 6834 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:15:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:40,858 INFO L93 Difference]: Finished difference Result 10654 states and 14757 transitions. [2022-10-15 21:15:40,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:15:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 74 [2022-10-15 21:15:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:40,912 INFO L225 Difference]: With dead ends: 10654 [2022-10-15 21:15:40,912 INFO L226 Difference]: Without dead ends: 5656 [2022-10-15 21:15:40,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:40,941 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 385 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:40,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 2458 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 21:15:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5656 states. [2022-10-15 21:15:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5656 to 5050. [2022-10-15 21:15:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5050 states, 3715 states have (on average 1.3394347240915208) internal successors, (4976), 3827 states have internal predecessors, (4976), 932 states have call successors, (932), 342 states have call predecessors, (932), 342 states have return successors, (932), 926 states have call predecessors, (932), 932 states have call successors, (932) [2022-10-15 21:15:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 6840 transitions. [2022-10-15 21:15:41,398 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 6840 transitions. Word has length 74 [2022-10-15 21:15:41,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:41,400 INFO L495 AbstractCegarLoop]: Abstraction has 5050 states and 6840 transitions. [2022-10-15 21:15:41,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:15:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 6840 transitions. [2022-10-15 21:15:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 21:15:41,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:41,405 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:41,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:15:41,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [dp83640_config_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dp83640_config_initErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:15:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -77526056, now seen corresponding path program 1 times [2022-10-15 21:15:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:41,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96440094] [2022-10-15 21:15:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 21:15:41,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:41,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96440094] [2022-10-15 21:15:41,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96440094] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:15:41,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459093771] [2022-10-15 21:15:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:41,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:15:41,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:15:41,873 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) [2022-10-15 21:15:41,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:15:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:42,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:15:42,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:15:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 21:15:42,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:15:42,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459093771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:42,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:15:42,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 21:15:42,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905805709] [2022-10-15 21:15:42,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:42,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:42,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:42,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:15:42,351 INFO L87 Difference]: Start difference. First operand 5050 states and 6840 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)