/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:01,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:01,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:02,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:02,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:02,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:02,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:02,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:02,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:02,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:02,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:02,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:02,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:02,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:02,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:02,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:02,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:02,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:02,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:02,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:02,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:02,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:02,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:02,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:02,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:02,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:02,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:02,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:02,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:02,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:02,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:02,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:02,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:02,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:02,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:02,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:02,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:02,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:02,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:02,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:02,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:02,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:13:02,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:02,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:02,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:02,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:02,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:02,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:02,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:02,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:02,220 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:02,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:02,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:02,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:02,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:02,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:02,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:02,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:02,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:02,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:02,224 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:02,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:02,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:02,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:02,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:02,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:02,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:02,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:02,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:02,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:02,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:02,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:02,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:02,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:02,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:02,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:02,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:02,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:02,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:02,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:02,772 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:02,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2022-10-15 21:13:02,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9212a5ad/17f2546e20a64851b34e9c51a5f6572a/FLAG19a3cbd20 [2022-10-15 21:13:04,156 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:13:04,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2022-10-15 21:13:04,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9212a5ad/17f2546e20a64851b34e9c51a5f6572a/FLAG19a3cbd20 [2022-10-15 21:13:04,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9212a5ad/17f2546e20a64851b34e9c51a5f6572a [2022-10-15 21:13:04,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:13:04,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:13:04,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:04,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:13:04,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:13:04,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:04" (1/1) ... [2022-10-15 21:13:04,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1583a826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:04, skipping insertion in model container [2022-10-15 21:13:04,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:04" (1/1) ... [2022-10-15 21:13:04,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:13:04,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:13:05,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i[182110,182123] [2022-10-15 21:13:05,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:05,985 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:13:06,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i[182110,182123] [2022-10-15 21:13:06,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:06,635 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:13:06,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06 WrapperNode [2022-10-15 21:13:06,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:06,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:06,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:13:06,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:13:06,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,815 INFO L138 Inliner]: procedures = 95, calls = 357, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 1020 [2022-10-15 21:13:06,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:06,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:13:06,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:13:06,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:13:06,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:07,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:07,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:07,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:07,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:07,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:07,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:07,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:07,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:07,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:07,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:13:07,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:13:07,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-15 21:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-15 21:13:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-10-15 21:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-10-15 21:13:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-10-15 21:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-10-15 21:13:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:13:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-10-15 21:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-10-15 21:13:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:13:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2022-10-15 21:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2022-10-15 21:13:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2022-10-15 21:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2022-10-15 21:13:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:07,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:13:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2022-10-15 21:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2022-10-15 21:13:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:07,169 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2022-10-15 21:13:07,170 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2022-10-15 21:13:07,650 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:07,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:07,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:10,045 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:10,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:10,065 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:13:10,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:10 BoogieIcfgContainer [2022-10-15 21:13:10,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:10,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:10,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:10,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:10,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:13:04" (1/3) ... [2022-10-15 21:13:10,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201d862a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:10, skipping insertion in model container [2022-10-15 21:13:10,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06" (2/3) ... [2022-10-15 21:13:10,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201d862a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:10, skipping insertion in model container [2022-10-15 21:13:10,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:10" (3/3) ... [2022-10-15 21:13:10,080 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2022-10-15 21:13:10,104 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:10,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-15 21:13:10,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:10,194 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;@7515cfb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:10,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-15 21:13:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 239 states have (on average 1.3682008368200838) internal successors, (327), 268 states have internal predecessors, (327), 82 states have call successors, (82), 17 states have call predecessors, (82), 16 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-10-15 21:13:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 21:13:10,218 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:10,220 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:13:10,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1376580105, now seen corresponding path program 1 times [2022-10-15 21:13:10,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:10,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640759388] [2022-10-15 21:13:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-15 21:13:10,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:10,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640759388] [2022-10-15 21:13:10,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640759388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:10,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:10,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:10,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202740708] [2022-10-15 21:13:10,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:10,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:10,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:10,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:10,992 INFO L87 Difference]: Start difference. First operand has 356 states, 239 states have (on average 1.3682008368200838) internal successors, (327), 268 states have internal predecessors, (327), 82 states have call successors, (82), 17 states have call predecessors, (82), 16 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:14,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:15,245 INFO L93 Difference]: Finished difference Result 876 states and 1257 transitions. [2022-10-15 21:13:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:15,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2022-10-15 21:13:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:15,273 INFO L225 Difference]: With dead ends: 876 [2022-10-15 21:13:15,273 INFO L226 Difference]: Without dead ends: 474 [2022-10-15 21:13:15,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:15,288 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 317 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 242 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:15,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1279 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 21:13:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-15 21:13:15,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 429. [2022-10-15 21:13:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 306 states have (on average 1.3333333333333333) internal successors, (408), 325 states have internal predecessors, (408), 85 states have call successors, (85), 22 states have call predecessors, (85), 22 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-10-15 21:13:15,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 578 transitions. [2022-10-15 21:13:15,429 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 578 transitions. Word has length 40 [2022-10-15 21:13:15,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:15,430 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 578 transitions. [2022-10-15 21:13:15,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 578 transitions. [2022-10-15 21:13:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 21:13:15,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:15,435 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:13:15,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:15,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:15,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 118296775, now seen corresponding path program 1 times [2022-10-15 21:13:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:15,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702879233] [2022-10-15 21:13:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:15,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:13:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-15 21:13:15,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:15,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702879233] [2022-10-15 21:13:15,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702879233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:15,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:15,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:15,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690650014] [2022-10-15 21:13:15,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:15,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:15,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:15,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:15,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:15,770 INFO L87 Difference]: Start difference. First operand 429 states and 578 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:18,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:19,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:19,221 INFO L93 Difference]: Finished difference Result 1199 states and 1650 transitions. [2022-10-15 21:13:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2022-10-15 21:13:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:19,232 INFO L225 Difference]: With dead ends: 1199 [2022-10-15 21:13:19,232 INFO L226 Difference]: Without dead ends: 788 [2022-10-15 21:13:19,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:19,237 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 525 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:19,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1531 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-15 21:13:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-10-15 21:13:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 704. [2022-10-15 21:13:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 504 states have (on average 1.3293650793650793) internal successors, (670), 524 states have internal predecessors, (670), 145 states have call successors, (145), 39 states have call predecessors, (145), 39 states have return successors, (145), 144 states have call predecessors, (145), 145 states have call successors, (145) [2022-10-15 21:13:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 960 transitions. [2022-10-15 21:13:19,322 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 960 transitions. Word has length 50 [2022-10-15 21:13:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:19,323 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 960 transitions. [2022-10-15 21:13:19,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 960 transitions. [2022-10-15 21:13:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 21:13:19,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:19,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:13:19,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:19,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:19,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1537644040, now seen corresponding path program 1 times [2022-10-15 21:13:19,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:19,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759094384] [2022-10-15 21:13:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:19,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:19,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:19,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759094384] [2022-10-15 21:13:19,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759094384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:19,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:19,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873561825] [2022-10-15 21:13:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:19,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:19,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:19,679 INFO L87 Difference]: Start difference. First operand 704 states and 960 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:22,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:24,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:24,047 INFO L93 Difference]: Finished difference Result 1517 states and 2144 transitions. [2022-10-15 21:13:24,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:24,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2022-10-15 21:13:24,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:24,067 INFO L225 Difference]: With dead ends: 1517 [2022-10-15 21:13:24,068 INFO L226 Difference]: Without dead ends: 1507 [2022-10-15 21:13:24,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:24,087 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 543 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 372 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:24,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1201 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-10-15 21:13:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-10-15 21:13:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1366. [2022-10-15 21:13:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 990 states have (on average 1.3131313131313131) internal successors, (1300), 1015 states have internal predecessors, (1300), 285 states have call successors, (285), 75 states have call predecessors, (285), 75 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2022-10-15 21:13:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1870 transitions. [2022-10-15 21:13:24,264 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1870 transitions. Word has length 65 [2022-10-15 21:13:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:24,269 INFO L495 AbstractCegarLoop]: Abstraction has 1366 states and 1870 transitions. [2022-10-15 21:13:24,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:13:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1870 transitions. [2022-10-15 21:13:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 21:13:24,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:24,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:13:24,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:13:24,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1655317427, now seen corresponding path program 1 times [2022-10-15 21:13:24,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:24,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937338193] [2022-10-15 21:13:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 21:13:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-15 21:13:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:24,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:24,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937338193] [2022-10-15 21:13:24,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937338193] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:24,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:24,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846934899] [2022-10-15 21:13:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:24,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:24,756 INFO L87 Difference]: Start difference. First operand 1366 states and 1870 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 21:13:27,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:28,083 INFO L93 Difference]: Finished difference Result 2758 states and 3783 transitions. [2022-10-15 21:13:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:28,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2022-10-15 21:13:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:28,098 INFO L225 Difference]: With dead ends: 2758 [2022-10-15 21:13:28,099 INFO L226 Difference]: Without dead ends: 1418 [2022-10-15 21:13:28,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:28,107 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 313 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:28,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1258 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-15 21:13:28,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-10-15 21:13:28,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1268. [2022-10-15 21:13:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 947 states have (on average 1.2956705385427667) internal successors, (1227), 972 states have internal predecessors, (1227), 220 states have call successors, (220), 85 states have call predecessors, (220), 85 states have return successors, (220), 218 states have call predecessors, (220), 220 states have call successors, (220) [2022-10-15 21:13:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1667 transitions. [2022-10-15 21:13:28,252 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1667 transitions. Word has length 78 [2022-10-15 21:13:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:28,256 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1667 transitions. [2022-10-15 21:13:28,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 21:13:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1667 transitions. [2022-10-15 21:13:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 21:13:28,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:28,263 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:13:28,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:13:28,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:28,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:28,265 INFO L85 PathProgramCache]: Analyzing trace with hash -627008424, now seen corresponding path program 1 times [2022-10-15 21:13:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345027767] [2022-10-15 21:13:28,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:28,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:28,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:28,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345027767] [2022-10-15 21:13:28,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345027767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:28,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:28,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:28,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978203354] [2022-10-15 21:13:28,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:28,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:28,593 INFO L87 Difference]: Start difference. First operand 1268 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:13:31,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:32,135 INFO L93 Difference]: Finished difference Result 2652 states and 3552 transitions. [2022-10-15 21:13:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 79 [2022-10-15 21:13:32,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:32,155 INFO L225 Difference]: With dead ends: 2652 [2022-10-15 21:13:32,155 INFO L226 Difference]: Without dead ends: 1717 [2022-10-15 21:13:32,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:32,162 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 316 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:32,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1460 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-10-15 21:13:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-10-15 21:13:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1531. [2022-10-15 21:13:32,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1152 states have (on average 1.2899305555555556) internal successors, (1486), 1179 states have internal predecessors, (1486), 254 states have call successors, (254), 109 states have call predecessors, (254), 109 states have return successors, (254), 252 states have call predecessors, (254), 254 states have call successors, (254) [2022-10-15 21:13:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1994 transitions. [2022-10-15 21:13:32,312 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1994 transitions. Word has length 79 [2022-10-15 21:13:32,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:32,313 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 1994 transitions. [2022-10-15 21:13:32,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:13:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1994 transitions. [2022-10-15 21:13:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 21:13:32,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:32,319 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-10-15 21:13:32,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:13:32,320 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1614441700, now seen corresponding path program 1 times [2022-10-15 21:13:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:32,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30002993] [2022-10-15 21:13:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:32,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:13:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:32,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30002993] [2022-10-15 21:13:32,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30002993] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:32,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231765198] [2022-10-15 21:13:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:32,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:32,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:32,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:13:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:33,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:33,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 21:13:33,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:33,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231765198] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:33,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:33,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-15 21:13:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096634526] [2022-10-15 21:13:33,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:33,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:13:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:13:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:13:33,464 INFO L87 Difference]: Start difference. First operand 1531 states and 1994 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 7 states have internal predecessors, (135), 6 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2022-10-15 21:13:40,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:41,834 INFO L93 Difference]: Finished difference Result 5686 states and 7670 transitions. [2022-10-15 21:13:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 21:13:41,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 7 states have internal predecessors, (135), 6 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 85 [2022-10-15 21:13:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:41,883 INFO L225 Difference]: With dead ends: 5686 [2022-10-15 21:13:41,884 INFO L226 Difference]: Without dead ends: 5681 [2022-10-15 21:13:41,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:13:41,890 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 2326 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 1068 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 3030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1068 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:41,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 2275 Invalid, 3030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1068 Valid, 1961 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-10-15 21:13:41,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2022-10-15 21:13:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 3838. [2022-10-15 21:13:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 2890 states have (on average 1.2865051903114186) internal successors, (3718), 2936 states have internal predecessors, (3718), 666 states have call successors, (666), 269 states have call predecessors, (666), 269 states have return successors, (666), 658 states have call predecessors, (666), 666 states have call successors, (666) [2022-10-15 21:13:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 5050 transitions. [2022-10-15 21:13:42,305 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 5050 transitions. Word has length 85 [2022-10-15 21:13:42,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:42,306 INFO L495 AbstractCegarLoop]: Abstraction has 3838 states and 5050 transitions. [2022-10-15 21:13:42,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 7 states have internal predecessors, (135), 6 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2022-10-15 21:13:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 5050 transitions. [2022-10-15 21:13:42,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-15 21:13:42,310 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:42,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-10-15 21:13:42,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:42,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:13:42,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:42,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1491915487, now seen corresponding path program 1 times [2022-10-15 21:13:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799952132] [2022-10-15 21:13:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:13:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:13:42,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:42,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799952132] [2022-10-15 21:13:42,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799952132] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:42,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467970812] [2022-10-15 21:13:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:42,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:42,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:42,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:42,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:13:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:43,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:43,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:43,337 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 21:13:43,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467970812] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:43,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:43,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 21:13:43,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674771108] [2022-10-15 21:13:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:43,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:43,341 INFO L87 Difference]: Start difference. First operand 3838 states and 5050 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:13:44,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:44,560 INFO L93 Difference]: Finished difference Result 8577 states and 11314 transitions. [2022-10-15 21:13:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:13:44,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 86 [2022-10-15 21:13:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:44,645 INFO L225 Difference]: With dead ends: 8577 [2022-10-15 21:13:44,645 INFO L226 Difference]: Without dead ends: 8572 [2022-10-15 21:13:44,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:44,655 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 917 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:44,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1412 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:13:44,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8572 states. [2022-10-15 21:13:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8572 to 8237. [2022-10-15 21:13:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 6194 states have (on average 1.2825314820794318) internal successors, (7944), 6273 states have internal predecessors, (7944), 1457 states have call successors, (1457), 573 states have call predecessors, (1457), 573 states have return successors, (1457), 1446 states have call predecessors, (1457), 1457 states have call successors, (1457) [2022-10-15 21:13:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 10858 transitions. [2022-10-15 21:13:45,408 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 10858 transitions. Word has length 86 [2022-10-15 21:13:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:45,409 INFO L495 AbstractCegarLoop]: Abstraction has 8237 states and 10858 transitions. [2022-10-15 21:13:45,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:13:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 10858 transitions. [2022-10-15 21:13:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 21:13:45,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:45,415 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-10-15 21:13:45,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:45,629 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,SelfDestructingSolverStorable6 [2022-10-15 21:13:45,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:45,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash 225892023, now seen corresponding path program 1 times [2022-10-15 21:13:45,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:45,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472798049] [2022-10-15 21:13:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:45,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:13:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:13:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 21:13:45,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:45,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472798049] [2022-10-15 21:13:45,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472798049] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:45,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:45,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:13:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290198146] [2022-10-15 21:13:45,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:45,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:13:45,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:45,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:13:45,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:45,975 INFO L87 Difference]: Start difference. First operand 8237 states and 10858 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:13:48,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:51,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:53,180 INFO L93 Difference]: Finished difference Result 14310 states and 18961 transitions. [2022-10-15 21:13:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:53,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2022-10-15 21:13:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:53,228 INFO L225 Difference]: With dead ends: 14310 [2022-10-15 21:13:53,229 INFO L226 Difference]: Without dead ends: 6099 [2022-10-15 21:13:53,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:13:53,257 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 459 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 287 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:53,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 2182 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 965 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-10-15 21:13:53,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6099 states. [2022-10-15 21:13:53,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6099 to 5078. [2022-10-15 21:13:53,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5078 states, 3830 states have (on average 1.2762402088772846) internal successors, (4888), 3880 states have internal predecessors, (4888), 867 states have call successors, (867), 368 states have call predecessors, (867), 368 states have return successors, (867), 859 states have call predecessors, (867), 867 states have call successors, (867) [2022-10-15 21:13:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6622 transitions. [2022-10-15 21:13:53,715 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6622 transitions. Word has length 93 [2022-10-15 21:13:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:53,717 INFO L495 AbstractCegarLoop]: Abstraction has 5078 states and 6622 transitions. [2022-10-15 21:13:53,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:13:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6622 transitions. [2022-10-15 21:13:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 21:13:53,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:53,727 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-15 21:13:53,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:13:53,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-15 21:13:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash -316982538, now seen corresponding path program 1 times [2022-10-15 21:13:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:53,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096272185] [2022-10-15 21:13:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:13:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:13:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 21:13:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:13:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096272185] [2022-10-15 21:13:54,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096272185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:54,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:54,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:54,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680378761] [2022-10-15 21:13:54,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:54,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:54,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:54,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:54,039 INFO L87 Difference]: Start difference. First operand 5078 states and 6622 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)