/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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:53:13,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:53:13,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:53:13,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:53:13,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:53:13,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:53:13,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:53:13,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:53:13,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:53:13,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:53:13,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:53:13,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:53:13,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:53:13,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:53:13,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:53:13,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:53:13,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:53:13,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:53:13,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:53:13,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:53:13,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:53:13,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:53:13,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:53:13,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:53:13,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:53:13,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:53:13,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:53:13,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:53:13,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:53:13,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:53:13,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:53:13,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:53:13,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:53:13,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:53:13,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:53:13,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:53:13,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:53:13,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:53:13,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:53:13,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:53:13,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:53:13,405 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 [2022-10-16 12:53:13,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:53:13,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:53:13,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:53:13,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:53:13,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:53:13,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:53:13,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:53:13,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:53:13,465 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:53:13,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:53:13,466 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:53:13,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:53:13,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:53:13,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:53:13,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:53:13,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:53:13,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:53:13,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:53:13,468 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:53:13,468 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:53:13,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:53:13,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:53:13,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:53:13,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:53:13,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:53:13,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:53:13,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:53:13,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:53:13,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:53:13,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:53:13,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:53:13,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:53:13,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:53:13,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:53:13,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:53:13,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:53:13,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:53:13,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:53:13,935 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:53:13,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-16 12:53:14,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45576a34e/1639a2c6426a48f5a30964d8336dd42c/FLAG83878f5a3 [2022-10-16 12:53:15,093 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:53:15,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-16 12:53:15,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45576a34e/1639a2c6426a48f5a30964d8336dd42c/FLAG83878f5a3 [2022-10-16 12:53:15,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45576a34e/1639a2c6426a48f5a30964d8336dd42c [2022-10-16 12:53:15,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:53:15,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:53:15,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:53:15,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:53:15,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:53:15,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:53:15" (1/1) ... [2022-10-16 12:53:15,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28995a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:15, skipping insertion in model container [2022-10-16 12:53:15,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:53:15" (1/1) ... [2022-10-16 12:53:15,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:53:15,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:53:17,188 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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-10-16 12:53:17,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:53:17,254 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:53:17,547 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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-10-16 12:53:17,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:53:17,639 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:53:17,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17 WrapperNode [2022-10-16 12:53:17,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:53:17,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:53:17,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:53:17,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:53:17,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:17,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:17,853 INFO L138 Inliner]: procedures = 191, calls = 829, calls flagged for inlining = 88, calls inlined = 74, statements flattened = 2160 [2022-10-16 12:53:17,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:53:17,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:53:17,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:53:17,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:53:17,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:17,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:17,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:17,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:53:18,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:53:18,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:53:18,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:53:18,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (1/1) ... [2022-10-16 12:53:18,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:53:18,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:18,120 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) [2022-10-16 12:53:18,126 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 [2022-10-16 12:53:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:53:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2022-10-16 12:53:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2022-10-16 12:53:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:53:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:53:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:53:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-10-16 12:53:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-10-16 12:53:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:53:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:53:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-10-16 12:53:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-10-16 12:53:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 12:53:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 12:53:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2022-10-16 12:53:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2022-10-16 12:53:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:53:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:53:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 12:53:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 12:53:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:53:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:53:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2022-10-16 12:53:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2022-10-16 12:53:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:53:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:53:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:53:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-16 12:53:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-16 12:53:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:53:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:53:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2022-10-16 12:53:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2022-10-16 12:53:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-16 12:53:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-16 12:53:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:53:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:53:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2022-10-16 12:53:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2022-10-16 12:53:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-10-16 12:53:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-10-16 12:53:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:53:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2022-10-16 12:53:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2022-10-16 12:53:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:53:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:53:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:53:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2022-10-16 12:53:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2022-10-16 12:53:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:53:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:53:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 12:53:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2022-10-16 12:53:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2022-10-16 12:53:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2022-10-16 12:53:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2022-10-16 12:53:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:53:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-10-16 12:53:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-10-16 12:53:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 12:53:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-16 12:53:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-16 12:53:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-16 12:53:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-16 12:53:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-16 12:53:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-16 12:53:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-16 12:53:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-10-16 12:53:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-10-16 12:53:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:53:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:53:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2022-10-16 12:53:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2022-10-16 12:53:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:53:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:53:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-16 12:53:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-16 12:53:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 12:53:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 12:53:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 12:53:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 12:53:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 12:53:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-16 12:53:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 12:53:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 12:53:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 12:53:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 12:53:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:53:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-16 12:53:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-16 12:53:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-16 12:53:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-16 12:53:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:53:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:53:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:53:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-16 12:53:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-16 12:53:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:53:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:53:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 12:53:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 12:53:18,845 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:53:18,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:53:28,882 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:53:28,899 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:53:28,899 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:53:28,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:53:28 BoogieIcfgContainer [2022-10-16 12:53:28,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:53:28,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:53:28,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:53:28,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:53:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:53:15" (1/3) ... [2022-10-16 12:53:28,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4916bad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:53:28, skipping insertion in model container [2022-10-16 12:53:28,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:53:17" (2/3) ... [2022-10-16 12:53:28,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4916bad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:53:28, skipping insertion in model container [2022-10-16 12:53:28,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:53:28" (3/3) ... [2022-10-16 12:53:28,914 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-16 12:53:28,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:53:28,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 12:53:29,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:53:29,034 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;@484075c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:53:29,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 12:53:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 708 states, 512 states have (on average 1.373046875) internal successors, (703), 539 states have internal predecessors, (703), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-16 12:53:29,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:53:29,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:29,062 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:53:29,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:29,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash 174738616, now seen corresponding path program 1 times [2022-10-16 12:53:29,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:29,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353671394] [2022-10-16 12:53:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:29,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 12:53:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 12:53:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:53:29,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:29,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353671394] [2022-10-16 12:53:29,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353671394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:29,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:29,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:53:29,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460850276] [2022-10-16 12:53:29,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:29,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:53:29,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:29,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:53:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:53:29,831 INFO L87 Difference]: Start difference. First operand has 708 states, 512 states have (on average 1.373046875) internal successors, (703), 539 states have internal predecessors, (703), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 12:53:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:30,171 INFO L93 Difference]: Finished difference Result 1452 states and 2038 transitions. [2022-10-16 12:53:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:53:30,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-10-16 12:53:30,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:30,210 INFO L225 Difference]: With dead ends: 1452 [2022-10-16 12:53:30,210 INFO L226 Difference]: Without dead ends: 719 [2022-10-16 12:53:30,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:53:30,232 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 63 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:30,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1882 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:53:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-16 12:53:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2022-10-16 12:53:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 530 states have (on average 1.3528301886792453) internal successors, (717), 547 states have internal predecessors, (717), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-16 12:53:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 989 transitions. [2022-10-16 12:53:30,382 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 989 transitions. Word has length 29 [2022-10-16 12:53:30,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:30,384 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 989 transitions. [2022-10-16 12:53:30,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 12:53:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 989 transitions. [2022-10-16 12:53:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 12:53:30,393 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:30,393 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:53:30,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:53:30,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1021274348, now seen corresponding path program 1 times [2022-10-16 12:53:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:30,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012139144] [2022-10-16 12:53:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:53:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:53:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 12:53:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:53:30,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:30,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012139144] [2022-10-16 12:53:30,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012139144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:30,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:30,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:53:30,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806934105] [2022-10-16 12:53:30,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:30,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:53:30,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:30,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:53:30,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:53:30,711 INFO L87 Difference]: Start difference. First operand 719 states and 989 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:32,441 INFO L93 Difference]: Finished difference Result 1606 states and 2269 transitions. [2022-10-16 12:53:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:53:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-10-16 12:53:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:32,454 INFO L225 Difference]: With dead ends: 1606 [2022-10-16 12:53:32,454 INFO L226 Difference]: Without dead ends: 895 [2022-10-16 12:53:32,458 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 [2022-10-16 12:53:32,460 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 423 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:32,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 2313 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-16 12:53:32,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-10-16 12:53:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 725. [2022-10-16 12:53:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 535 states have (on average 1.3514018691588785) internal successors, (723), 553 states have internal predecessors, (723), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-16 12:53:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 997 transitions. [2022-10-16 12:53:32,548 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 997 transitions. Word has length 58 [2022-10-16 12:53:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:32,550 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 997 transitions. [2022-10-16 12:53:32,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:32,552 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 997 transitions. [2022-10-16 12:53:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 12:53:32,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:32,567 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:53:32,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:53:32,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1804668731, now seen corresponding path program 1 times [2022-10-16 12:53:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:32,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318329706] [2022-10-16 12:53:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 12:53:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 12:53:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 12:53:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:53:32,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:32,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318329706] [2022-10-16 12:53:32,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318329706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:32,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:32,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:53:32,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761205382] [2022-10-16 12:53:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:32,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:53:32,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:53:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:53:32,864 INFO L87 Difference]: Start difference. First operand 725 states and 997 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 12:53:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:34,760 INFO L93 Difference]: Finished difference Result 1461 states and 2013 transitions. [2022-10-16 12:53:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:53:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2022-10-16 12:53:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:34,767 INFO L225 Difference]: With dead ends: 1461 [2022-10-16 12:53:34,768 INFO L226 Difference]: Without dead ends: 741 [2022-10-16 12:53:34,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:34,774 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 190 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:34,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 2665 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 12:53:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-10-16 12:53:34,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 725. [2022-10-16 12:53:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 535 states have (on average 1.3495327102803738) internal successors, (722), 553 states have internal predecessors, (722), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-16 12:53:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 996 transitions. [2022-10-16 12:53:34,854 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 996 transitions. Word has length 60 [2022-10-16 12:53:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:34,855 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 996 transitions. [2022-10-16 12:53:34,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 12:53:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 996 transitions. [2022-10-16 12:53:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 12:53:34,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:34,861 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 12:53:34,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:53:34,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:34,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash -905660176, now seen corresponding path program 1 times [2022-10-16 12:53:34,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:34,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985179244] [2022-10-16 12:53:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:34,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:53:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:53:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:53:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 12:53:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:53:35,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:35,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985179244] [2022-10-16 12:53:35,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985179244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:35,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:35,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:53:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935713483] [2022-10-16 12:53:35,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:35,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:53:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:53:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:53:35,064 INFO L87 Difference]: Start difference. First operand 725 states and 996 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:36,494 INFO L93 Difference]: Finished difference Result 895 states and 1276 transitions. [2022-10-16 12:53:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:53:36,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2022-10-16 12:53:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:36,506 INFO L225 Difference]: With dead ends: 895 [2022-10-16 12:53:36,507 INFO L226 Difference]: Without dead ends: 894 [2022-10-16 12:53:36,508 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 [2022-10-16 12:53:36,518 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 418 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:36,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 2314 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 12:53:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-10-16 12:53:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 724. [2022-10-16 12:53:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 535 states have (on average 1.347663551401869) internal successors, (721), 552 states have internal predecessors, (721), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-16 12:53:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 995 transitions. [2022-10-16 12:53:36,587 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 995 transitions. Word has length 65 [2022-10-16 12:53:36,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:36,588 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 995 transitions. [2022-10-16 12:53:36,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:36,589 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 995 transitions. [2022-10-16 12:53:36,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 12:53:36,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:36,595 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:53:36,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:53:36,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1753658184, now seen corresponding path program 1 times [2022-10-16 12:53:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:36,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094891182] [2022-10-16 12:53:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:53:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:53:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 12:53:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:53:36,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:36,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094891182] [2022-10-16 12:53:36,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094891182] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547167143] [2022-10-16 12:53:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:36,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:36,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:36,922 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) [2022-10-16 12:53:36,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:53:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:37,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:53:37,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:53:37,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:53:37,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547167143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:37,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:53:37,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 12:53:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277918388] [2022-10-16 12:53:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:37,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:53:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:53:37,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:37,362 INFO L87 Difference]: Start difference. First operand 724 states and 995 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:37,462 INFO L93 Difference]: Finished difference Result 729 states and 1004 transitions. [2022-10-16 12:53:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:53:37,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-10-16 12:53:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:37,470 INFO L225 Difference]: With dead ends: 729 [2022-10-16 12:53:37,471 INFO L226 Difference]: Without dead ends: 728 [2022-10-16 12:53:37,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:37,477 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 12 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:37,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1873 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:53:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-10-16 12:53:37,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 718. [2022-10-16 12:53:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 531 states have (on average 1.3465160075329567) internal successors, (715), 546 states have internal predecessors, (715), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-16 12:53:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 987 transitions. [2022-10-16 12:53:37,537 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 987 transitions. Word has length 64 [2022-10-16 12:53:37,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:37,538 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 987 transitions. [2022-10-16 12:53:37,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:53:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 987 transitions. [2022-10-16 12:53:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 12:53:37,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:37,542 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 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] [2022-10-16 12:53:37,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:53:37,755 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 [2022-10-16 12:53:37,756 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:37,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:37,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2078096913, now seen corresponding path program 1 times [2022-10-16 12:53:37,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:37,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343766354] [2022-10-16 12:53:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:53:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:53:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:53:38,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:38,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343766354] [2022-10-16 12:53:38,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343766354] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:38,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867119388] [2022-10-16 12:53:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:38,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:38,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:38,097 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) [2022-10-16 12:53:38,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:53:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:38,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:53:38,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:53:38,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:53:38,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867119388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:38,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:53:38,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 12:53:38,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573757626] [2022-10-16 12:53:38,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:38,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:53:38,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:38,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:53:38,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:38,467 INFO L87 Difference]: Start difference. First operand 718 states and 987 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:53:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:38,545 INFO L93 Difference]: Finished difference Result 718 states and 987 transitions. [2022-10-16 12:53:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:53:38,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-10-16 12:53:38,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:38,552 INFO L225 Difference]: With dead ends: 718 [2022-10-16 12:53:38,553 INFO L226 Difference]: Without dead ends: 716 [2022-10-16 12:53:38,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:38,556 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 237 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1589 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:53:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-10-16 12:53:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-10-16 12:53:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 531 states have (on average 1.3427495291902072) internal successors, (713), 544 states have internal predecessors, (713), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-16 12:53:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 985 transitions. [2022-10-16 12:53:38,600 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 985 transitions. Word has length 73 [2022-10-16 12:53:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:38,601 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 985 transitions. [2022-10-16 12:53:38,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:53:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 985 transitions. [2022-10-16 12:53:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 12:53:38,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:38,604 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 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] [2022-10-16 12:53:38,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:53:38,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 12:53:38,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 3506549, now seen corresponding path program 1 times [2022-10-16 12:53:38,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:38,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580350182] [2022-10-16 12:53:38,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:38,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:53:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:53:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:53:39,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:39,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580350182] [2022-10-16 12:53:39,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580350182] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:39,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107934443] [2022-10-16 12:53:39,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:39,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:39,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:39,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:53:39,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:53:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:39,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:53:39,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:53:39,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:53:39,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107934443] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:39,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:53:39,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 12:53:39,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359855530] [2022-10-16 12:53:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:39,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:53:39,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:39,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:53:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:39,422 INFO L87 Difference]: Start difference. First operand 716 states and 985 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:53:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:39,522 INFO L93 Difference]: Finished difference Result 1458 states and 2016 transitions. [2022-10-16 12:53:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:53:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2022-10-16 12:53:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:39,529 INFO L225 Difference]: With dead ends: 1458 [2022-10-16 12:53:39,530 INFO L226 Difference]: Without dead ends: 750 [2022-10-16 12:53:39,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:39,535 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 153 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:39,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1742 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:53:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-10-16 12:53:39,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2022-10-16 12:53:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 561 states have (on average 1.3458110516934045) internal successors, (755), 573 states have internal predecessors, (755), 141 states have call successors, (141), 41 states have call predecessors, (141), 41 states have return successors, (141), 139 states have call predecessors, (141), 141 states have call successors, (141) [2022-10-16 12:53:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1037 transitions. [2022-10-16 12:53:39,583 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1037 transitions. Word has length 74 [2022-10-16 12:53:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:39,583 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1037 transitions. [2022-10-16 12:53:39,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:53:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1037 transitions. [2022-10-16 12:53:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 12:53:39,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:39,588 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 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] [2022-10-16 12:53:39,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:53:39,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:39,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:39,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2020881478, now seen corresponding path program 1 times [2022-10-16 12:53:39,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:39,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601789147] [2022-10-16 12:53:39,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:39,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:53:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:53:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:53:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:53:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:53:40,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:40,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601789147] [2022-10-16 12:53:40,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601789147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:40,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:40,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 12:53:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483421446] [2022-10-16 12:53:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:40,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:53:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:53:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:40,219 INFO L87 Difference]: Start difference. First operand 750 states and 1037 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:53:45,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:53:47,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:53:49,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:53:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:51,023 INFO L93 Difference]: Finished difference Result 2006 states and 2871 transitions. [2022-10-16 12:53:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:53:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-10-16 12:53:51,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:51,037 INFO L225 Difference]: With dead ends: 2006 [2022-10-16 12:53:51,038 INFO L226 Difference]: Without dead ends: 1264 [2022-10-16 12:53:51,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:53:51,045 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 921 mSDsluCounter, 5228 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 363 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 6649 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:51,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 6649 Invalid, 2783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [363 Valid, 2417 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 12:53:51,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-10-16 12:53:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 756. [2022-10-16 12:53:51,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 566 states have (on average 1.342756183745583) internal successors, (760), 578 states have internal predecessors, (760), 141 states have call successors, (141), 41 states have call predecessors, (141), 42 states have return successors, (144), 140 states have call predecessors, (144), 141 states have call successors, (144) [2022-10-16 12:53:51,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1045 transitions. [2022-10-16 12:53:51,156 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1045 transitions. Word has length 89 [2022-10-16 12:53:51,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:51,157 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1045 transitions. [2022-10-16 12:53:51,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:53:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1045 transitions. [2022-10-16 12:53:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 12:53:51,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:51,162 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 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] [2022-10-16 12:53:51,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:53:51,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1768527193, now seen corresponding path program 1 times [2022-10-16 12:53:51,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:51,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469998555] [2022-10-16 12:53:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:51,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:53:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:53:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:53:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:53:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:53:51,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:51,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469998555] [2022-10-16 12:53:51,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469998555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:51,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:51,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:53:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592951784] [2022-10-16 12:53:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:51,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:53:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:51,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:53:51,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:53:51,416 INFO L87 Difference]: Start difference. First operand 756 states and 1045 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:53:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:53,635 INFO L93 Difference]: Finished difference Result 1722 states and 2444 transitions. [2022-10-16 12:53:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:53:53,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-10-16 12:53:53,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:53,647 INFO L225 Difference]: With dead ends: 1722 [2022-10-16 12:53:53,647 INFO L226 Difference]: Without dead ends: 974 [2022-10-16 12:53:53,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:53:53,655 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 818 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:53,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 2743 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 12:53:53,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-10-16 12:53:53,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 790. [2022-10-16 12:53:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 596 states have (on average 1.3473154362416107) internal successors, (803), 607 states have internal predecessors, (803), 146 states have call successors, (146), 41 states have call predecessors, (146), 42 states have return successors, (149), 145 states have call predecessors, (149), 146 states have call successors, (149) [2022-10-16 12:53:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1098 transitions. [2022-10-16 12:53:53,718 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1098 transitions. Word has length 89 [2022-10-16 12:53:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:53,718 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1098 transitions. [2022-10-16 12:53:53,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:53:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1098 transitions. [2022-10-16 12:53:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 12:53:53,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:53,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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, 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] [2022-10-16 12:53:53,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:53:53,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 268713619, now seen corresponding path program 1 times [2022-10-16 12:53:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:53,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080912089] [2022-10-16 12:53:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:53:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:53:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:53:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 12:53:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 12:53:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:53:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 12:53:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 12:53:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 12:53:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:53:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:53:54,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:54,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080912089] [2022-10-16 12:53:54,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080912089] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518851188] [2022-10-16 12:53:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:54,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:54,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:54,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:53:54,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:53:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:54,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:53:54,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 12:53:54,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:53:54,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518851188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:54,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:53:54,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 12:53:54,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265910050] [2022-10-16 12:53:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:54,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:53:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:53:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:54,742 INFO L87 Difference]: Start difference. First operand 790 states and 1098 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:53:54,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:54,830 INFO L93 Difference]: Finished difference Result 1592 states and 2218 transitions. [2022-10-16 12:53:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:53:54,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2022-10-16 12:53:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:54,840 INFO L225 Difference]: With dead ends: 1592 [2022-10-16 12:53:54,840 INFO L226 Difference]: Without dead ends: 810 [2022-10-16 12:53:54,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:54,847 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 20 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:54,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1846 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:53:54,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-10-16 12:53:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 809. [2022-10-16 12:53:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 622 states have internal predecessors, (822), 150 states have call successors, (150), 41 states have call predecessors, (150), 42 states have return successors, (153), 149 states have call predecessors, (153), 150 states have call successors, (153) [2022-10-16 12:53:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1125 transitions. [2022-10-16 12:53:54,922 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1125 transitions. Word has length 142 [2022-10-16 12:53:54,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:54,922 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1125 transitions. [2022-10-16 12:53:54,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:53:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1125 transitions. [2022-10-16 12:53:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 12:53:54,930 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:54,930 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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, 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, 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] [2022-10-16 12:53:54,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:53:55,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:55,143 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash -249761747, now seen corresponding path program 1 times [2022-10-16 12:53:55,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:55,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293300904] [2022-10-16 12:53:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:53:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:53:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:53:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 12:53:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 12:53:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:53:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 12:53:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 12:53:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 12:53:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 12:53:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 12:53:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-16 12:53:55,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293300904] [2022-10-16 12:53:55,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293300904] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194303063] [2022-10-16 12:53:55,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:55,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:55,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:55,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:53:55,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:53:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:55,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:53:55,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 12:53:56,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:53:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194303063] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:53:56,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 12:53:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60686991] [2022-10-16 12:53:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:56,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:53:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:53:56,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:56,078 INFO L87 Difference]: Start difference. First operand 809 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 12:53:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:53:56,162 INFO L93 Difference]: Finished difference Result 1072 states and 1518 transitions. [2022-10-16 12:53:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:53:56,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2022-10-16 12:53:56,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:53:56,174 INFO L225 Difference]: With dead ends: 1072 [2022-10-16 12:53:56,174 INFO L226 Difference]: Without dead ends: 1071 [2022-10-16 12:53:56,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:56,177 INFO L413 NwaCegarLoop]: 1150 mSDtfsCounter, 205 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:53:56,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 2029 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:53:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-10-16 12:53:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 808. [2022-10-16 12:53:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 611 states have (on average 1.3436988543371522) internal successors, (821), 621 states have internal predecessors, (821), 150 states have call successors, (150), 41 states have call predecessors, (150), 42 states have return successors, (153), 149 states have call predecessors, (153), 150 states have call successors, (153) [2022-10-16 12:53:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1124 transitions. [2022-10-16 12:53:56,257 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1124 transitions. Word has length 149 [2022-10-16 12:53:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:56,258 INFO L495 AbstractCegarLoop]: Abstraction has 808 states and 1124 transitions. [2022-10-16 12:53:56,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 12:53:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1124 transitions. [2022-10-16 12:53:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 12:53:56,266 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:56,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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, 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, 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] [2022-10-16 12:53:56,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:53:56,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 12:53:56,481 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:53:56,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1789415313, now seen corresponding path program 1 times [2022-10-16 12:53:56,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:56,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766331486] [2022-10-16 12:53:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:56,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:53:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:53:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:53:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:53:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:53:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:53:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:53:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:53:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 12:53:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 12:53:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:53:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:53:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 12:53:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 12:53:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 12:53:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 12:53:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 12:53:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 12:53:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 12:53:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:53:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 12:53:57,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:57,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766331486] [2022-10-16 12:53:57,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766331486] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:53:57,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325592618] [2022-10-16 12:53:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:57,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:53:57,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:53:57,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:53:57,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:53:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:53:57,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:53:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 12:53:57,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:53:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 12:53:57,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325592618] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:53:57,902 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:53:57,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2022-10-16 12:53:57,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870192188] [2022-10-16 12:53:57,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:53:57,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:53:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:53:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:53:57,905 INFO L87 Difference]: Start difference. First operand 808 states and 1124 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 5 states have internal predecessors, (165), 4 states have call successors, (48), 5 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-10-16 12:54:00,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:00,801 INFO L93 Difference]: Finished difference Result 1827 states and 2604 transitions. [2022-10-16 12:54:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:54:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 5 states have internal predecessors, (165), 4 states have call successors, (48), 5 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 174 [2022-10-16 12:54:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:00,812 INFO L225 Difference]: With dead ends: 1827 [2022-10-16 12:54:00,812 INFO L226 Difference]: Without dead ends: 1027 [2022-10-16 12:54:00,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:54:00,819 INFO L413 NwaCegarLoop]: 1099 mSDtfsCounter, 995 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:00,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 3635 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 12:54:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2022-10-16 12:54:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 843. [2022-10-16 12:54:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 641 states have (on average 1.343213728549142) internal successors, (861), 651 states have internal predecessors, (861), 155 states have call successors, (155), 41 states have call predecessors, (155), 42 states have return successors, (158), 154 states have call predecessors, (158), 155 states have call successors, (158) [2022-10-16 12:54:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1174 transitions. [2022-10-16 12:54:00,884 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1174 transitions. Word has length 174 [2022-10-16 12:54:00,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:00,884 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1174 transitions. [2022-10-16 12:54:00,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 5 states have internal predecessors, (165), 4 states have call successors, (48), 5 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-10-16 12:54:00,885 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1174 transitions. [2022-10-16 12:54:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-10-16 12:54:00,894 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:00,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1] [2022-10-16 12:54:00,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:01,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:01,111 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:54:01,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1574969245, now seen corresponding path program 1 times [2022-10-16 12:54:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:01,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368190850] [2022-10-16 12:54:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:54:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:54:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:54:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:54:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:54:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:54:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:54:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:54:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:54:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:54:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:54:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 12:54:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:54:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 12:54:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 12:54:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 12:54:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 12:54:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 12:54:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 12:54:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 12:54:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 12:54:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 12:54:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 12:54:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 12:54:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:01,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368190850] [2022-10-16 12:54:01,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368190850] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:01,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198295057] [2022-10-16 12:54:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:01,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:01,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:01,756 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:01,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 12:54:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:02,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 12:54:02,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:54:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 12:54:02,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:54:02,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198295057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:02,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:54:02,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-10-16 12:54:02,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535931988] [2022-10-16 12:54:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:02,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:54:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:54:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:54:02,654 INFO L87 Difference]: Start difference. First operand 843 states and 1174 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 12:54:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:03,036 INFO L93 Difference]: Finished difference Result 1693 states and 2360 transitions. [2022-10-16 12:54:03,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 12:54:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 209 [2022-10-16 12:54:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:03,044 INFO L225 Difference]: With dead ends: 1693 [2022-10-16 12:54:03,044 INFO L226 Difference]: Without dead ends: 840 [2022-10-16 12:54:03,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-10-16 12:54:03,053 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 12 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6502 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:03,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6502 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:54:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-10-16 12:54:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2022-10-16 12:54:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 638 states have (on average 1.3385579937304075) internal successors, (854), 649 states have internal predecessors, (854), 155 states have call successors, (155), 41 states have call predecessors, (155), 42 states have return successors, (157), 153 states have call predecessors, (157), 155 states have call successors, (157) [2022-10-16 12:54:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1166 transitions. [2022-10-16 12:54:03,116 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1166 transitions. Word has length 209 [2022-10-16 12:54:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:03,116 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1166 transitions. [2022-10-16 12:54:03,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 12:54:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1166 transitions. [2022-10-16 12:54:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-10-16 12:54:03,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:03,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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] [2022-10-16 12:54:03,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:03,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:03,346 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:54:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:03,346 INFO L85 PathProgramCache]: Analyzing trace with hash 217809900, now seen corresponding path program 1 times [2022-10-16 12:54:03,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:03,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507381872] [2022-10-16 12:54:03,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:03,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:54:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:54:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:54:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:54:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:54:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:54:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:54:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:54:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:54:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 12:54:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 12:54:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:54:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 12:54:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 12:54:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 12:54:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 12:54:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:54:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 12:54:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-10-16 12:54:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-10-16 12:54:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 12:54:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 12:54:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 12:54:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-16 12:54:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 12:54:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 12:54:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-16 12:54:03,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:03,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507381872] [2022-10-16 12:54:03,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507381872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:03,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:03,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:54:03,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478833316] [2022-10-16 12:54:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:03,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:54:03,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:03,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:54:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:54:03,883 INFO L87 Difference]: Start difference. First operand 840 states and 1166 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-10-16 12:54:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:06,079 INFO L93 Difference]: Finished difference Result 1857 states and 2657 transitions. [2022-10-16 12:54:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:54:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 248 [2022-10-16 12:54:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:06,090 INFO L225 Difference]: With dead ends: 1857 [2022-10-16 12:54:06,090 INFO L226 Difference]: Without dead ends: 1025 [2022-10-16 12:54:06,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:54:06,099 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 775 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:06,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 2835 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 12:54:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-10-16 12:54:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 840. [2022-10-16 12:54:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 638 states have (on average 1.3338557993730407) internal successors, (851), 649 states have internal predecessors, (851), 155 states have call successors, (155), 41 states have call predecessors, (155), 42 states have return successors, (157), 153 states have call predecessors, (157), 155 states have call successors, (157) [2022-10-16 12:54:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1163 transitions. [2022-10-16 12:54:06,163 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1163 transitions. Word has length 248 [2022-10-16 12:54:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:06,163 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1163 transitions. [2022-10-16 12:54:06,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-10-16 12:54:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1163 transitions. [2022-10-16 12:54:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-10-16 12:54:06,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:06,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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] [2022-10-16 12:54:06,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 12:54:06,177 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:54:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash -428243804, now seen corresponding path program 1 times [2022-10-16 12:54:06,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:06,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881167266] [2022-10-16 12:54:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:06,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:54:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:54:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:54:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:54:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:54:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:54:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:54:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:54:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:54:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 12:54:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:54:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 12:54:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-16 12:54:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 12:54:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 12:54:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 12:54:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 12:54:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 12:54:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 12:54:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 12:54:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 12:54:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 12:54:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-16 12:54:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-10-16 12:54:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-16 12:54:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-16 12:54:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 12:54:06,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:06,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881167266] [2022-10-16 12:54:06,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881167266] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:06,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518582261] [2022-10-16 12:54:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:06,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:06,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:06,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:07,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:54:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:07,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:54:07,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:54:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 12:54:07,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:54:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 12:54:07,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518582261] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:54:07,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:54:07,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-10-16 12:54:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352741098] [2022-10-16 12:54:07,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:54:07,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:54:07,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:54:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:54:07,856 INFO L87 Difference]: Start difference. First operand 840 states and 1163 transitions. Second operand has 10 states, 10 states have (on average 20.2) internal successors, (202), 7 states have internal predecessors, (202), 5 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2022-10-16 12:54:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:11,238 INFO L93 Difference]: Finished difference Result 1897 states and 2690 transitions. [2022-10-16 12:54:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:54:11,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.2) internal successors, (202), 7 states have internal predecessors, (202), 5 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) Word has length 251 [2022-10-16 12:54:11,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:11,252 INFO L225 Difference]: With dead ends: 1897 [2022-10-16 12:54:11,253 INFO L226 Difference]: Without dead ends: 1065 [2022-10-16 12:54:11,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:54:11,261 INFO L413 NwaCegarLoop]: 1094 mSDtfsCounter, 685 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:11,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 4180 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 12:54:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-10-16 12:54:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 881. [2022-10-16 12:54:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 672 states have (on average 1.3273809523809523) internal successors, (892), 682 states have internal predecessors, (892), 163 states have call successors, (163), 41 states have call predecessors, (163), 42 states have return successors, (165), 161 states have call predecessors, (165), 163 states have call successors, (165) [2022-10-16 12:54:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1220 transitions. [2022-10-16 12:54:11,325 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1220 transitions. Word has length 251 [2022-10-16 12:54:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:11,326 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1220 transitions. [2022-10-16 12:54:11,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.2) internal successors, (202), 7 states have internal predecessors, (202), 5 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2022-10-16 12:54:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1220 transitions. [2022-10-16 12:54:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-10-16 12:54:11,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:11,341 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:11,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:11,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 12:54:11,555 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 12:54:11,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 230358584, now seen corresponding path program 2 times [2022-10-16 12:54:11,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:11,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224568294] [2022-10-16 12:54:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:54:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:54:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:54:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:54:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:54:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:54:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:54:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:54:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:54:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 12:54:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:54:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 12:54:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-16 12:54:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 12:54:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 12:54:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 12:54:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 12:54:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 12:54:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 12:54:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 12:54:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-16 12:54:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-10-16 12:54:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-16 12:54:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-10-16 12:54:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-10-16 12:54:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-16 12:54:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-16 12:54:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 12:54:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 12:54:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 12:54:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-10-16 12:54:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 12:54:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-10-16 12:54:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-10-16 12:54:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-10-16 12:54:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-10-16 12:54:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-10-16 12:54:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-10-16 12:54:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-10-16 12:54:12,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:12,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224568294] [2022-10-16 12:54:12,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224568294] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:12,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373106740] [2022-10-16 12:54:12,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:54:12,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:12,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:12,785 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:12,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process