/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:44:16,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:44:16,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:44:16,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:44:16,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:44:16,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:44:16,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:44:16,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:44:16,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:44:16,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:44:16,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:44:16,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:44:16,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:44:16,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:44:16,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:44:16,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:44:16,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:44:16,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:44:16,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:44:16,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:44:16,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:44:16,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:44:16,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:44:16,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:44:16,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:44:16,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:44:16,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:44:16,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:44:16,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:44:16,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:44:16,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:44:16,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:44:16,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:44:16,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:44:16,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:44:16,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:44:16,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:44:16,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:44:16,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:44:16,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:44:16,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:44:16,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:44:16,876 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:44:16,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:44:16,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:44:16,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:44:16,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:44:16,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:44:16,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:44:16,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:44:16,883 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:44:16,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:44:16,885 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:44:16,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:44:16,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:44:16,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:44:16,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:44:16,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:44:16,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:44:16,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:44:16,888 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:44:16,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:44:16,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:44:16,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:44:16,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:44:16,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:44:16,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:44:16,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:44:16,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:44:16,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:44:16,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:44:16,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:44:16,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:44:16,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:44:16,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:44:16,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:44:17,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:44:17,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:44:17,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:44:17,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:44:17,328 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:44:17,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2022-10-16 12:44:17,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872a2bd61/647ded80cee246d798be857892740faf/FLAG6084ec251 [2022-10-16 12:44:18,405 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:44:18,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2022-10-16 12:44:18,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872a2bd61/647ded80cee246d798be857892740faf/FLAG6084ec251 [2022-10-16 12:44:18,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872a2bd61/647ded80cee246d798be857892740faf [2022-10-16 12:44:18,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:44:18,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:44:18,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:44:18,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:44:18,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:44:18,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:18" (1/1) ... [2022-10-16 12:44:18,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c95668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:18, skipping insertion in model container [2022-10-16 12:44:18,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:18" (1/1) ... [2022-10-16 12:44:18,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:44:18,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:44:19,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2022-10-16 12:44:20,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:44:20,098 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:44:20,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2022-10-16 12:44:20,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:44:20,313 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:44:20,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20 WrapperNode [2022-10-16 12:44:20,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:44:20,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:44:20,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:44:20,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:44:20,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,561 INFO L138 Inliner]: procedures = 131, calls = 529, calls flagged for inlining = 47, calls inlined = 39, statements flattened = 1191 [2022-10-16 12:44:20,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:44:20,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:44:20,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:44:20,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:44:20,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,702 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:44:20,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:44:20,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:44:20,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:44:20,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (1/1) ... [2022-10-16 12:44:20,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:44:20,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:20,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:44:20,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:44:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-16 12:44:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-16 12:44:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 12:44:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 12:44:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-16 12:44:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-16 12:44:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-16 12:44:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-16 12:44:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:44:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 12:44:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 12:44:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:44:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:44:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2022-10-16 12:44:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2022-10-16 12:44:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2022-10-16 12:44:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2022-10-16 12:44:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:44:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:44:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:44:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-16 12:44:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-16 12:44:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2022-10-16 12:44:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2022-10-16 12:44:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:44:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:44:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:44:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:44:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 12:44:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 12:44:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:44:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:44:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:44:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:44:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:44:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:44:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2022-10-16 12:44:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2022-10-16 12:44:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:44:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:44:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-16 12:44:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-16 12:44:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2022-10-16 12:44:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2022-10-16 12:44:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 12:44:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:44:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2022-10-16 12:44:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2022-10-16 12:44:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2022-10-16 12:44:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2022-10-16 12:44:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-16 12:44:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-16 12:44:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:44:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:44:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-16 12:44:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-16 12:44:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-16 12:44:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-16 12:44:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:44:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:44:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2022-10-16 12:44:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2022-10-16 12:44:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-16 12:44:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-16 12:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2022-10-16 12:44:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2022-10-16 12:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:44:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:44:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:44:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-16 12:44:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-16 12:44:21,403 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:44:21,407 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:44:23,555 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:44:23,574 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:44:23,574 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:44:23,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:44:23 BoogieIcfgContainer [2022-10-16 12:44:23,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:44:23,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:44:23,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:44:23,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:44:23,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:44:18" (1/3) ... [2022-10-16 12:44:23,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9f2df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:44:23, skipping insertion in model container [2022-10-16 12:44:23,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:20" (2/3) ... [2022-10-16 12:44:23,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9f2df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:44:23, skipping insertion in model container [2022-10-16 12:44:23,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:44:23" (3/3) ... [2022-10-16 12:44:23,599 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2022-10-16 12:44:23,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:44:23,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-10-16 12:44:23,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:44:23,763 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;@22f42bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:44:23,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-10-16 12:44:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 417 states have (on average 1.498800959232614) internal successors, (625), 498 states have internal predecessors, (625), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-10-16 12:44:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 12:44:23,785 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:23,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:23,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:23,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash -241316541, now seen corresponding path program 1 times [2022-10-16 12:44:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342089383] [2022-10-16 12:44:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:24,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:24,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342089383] [2022-10-16 12:44:24,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342089383] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:24,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:24,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070987497] [2022-10-16 12:44:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:24,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:24,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:24,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:24,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:24,428 INFO L87 Difference]: Start difference. First operand has 606 states, 417 states have (on average 1.498800959232614) internal successors, (625), 498 states have internal predecessors, (625), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:44:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:24,755 INFO L93 Difference]: Finished difference Result 1654 states and 2209 transitions. [2022-10-16 12:44:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 12:44:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:24,808 INFO L225 Difference]: With dead ends: 1654 [2022-10-16 12:44:24,808 INFO L226 Difference]: Without dead ends: 1031 [2022-10-16 12:44:24,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:24,836 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 718 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:24,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1470 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:44:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-10-16 12:44:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 985. [2022-10-16 12:44:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 714 states have (on average 1.4551820728291316) internal successors, (1039), 790 states have internal predecessors, (1039), 143 states have call successors, (143), 56 states have call predecessors, (143), 56 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2022-10-16 12:44:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1325 transitions. [2022-10-16 12:44:25,100 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1325 transitions. Word has length 13 [2022-10-16 12:44:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:25,101 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1325 transitions. [2022-10-16 12:44:25,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:44:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1325 transitions. [2022-10-16 12:44:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 12:44:25,105 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:25,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:25,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:44:25,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1254186682, now seen corresponding path program 1 times [2022-10-16 12:44:25,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:25,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111952854] [2022-10-16 12:44:25,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:25,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:44:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:25,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:25,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111952854] [2022-10-16 12:44:25,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111952854] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:25,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:25,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924949164] [2022-10-16 12:44:25,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:25,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:25,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:25,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:25,352 INFO L87 Difference]: Start difference. First operand 985 states and 1325 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:25,544 INFO L93 Difference]: Finished difference Result 2349 states and 3132 transitions. [2022-10-16 12:44:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:25,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 12:44:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:25,559 INFO L225 Difference]: With dead ends: 2349 [2022-10-16 12:44:25,559 INFO L226 Difference]: Without dead ends: 1367 [2022-10-16 12:44:25,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:25,567 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 475 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:25,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1695 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:44:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-10-16 12:44:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1299. [2022-10-16 12:44:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 959 states have (on average 1.4588112617309699) internal successors, (1399), 1037 states have internal predecessors, (1399), 193 states have call successors, (193), 75 states have call predecessors, (193), 75 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2022-10-16 12:44:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1785 transitions. [2022-10-16 12:44:25,680 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1785 transitions. Word has length 17 [2022-10-16 12:44:25,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:25,680 INFO L495 AbstractCegarLoop]: Abstraction has 1299 states and 1785 transitions. [2022-10-16 12:44:25,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:25,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1785 transitions. [2022-10-16 12:44:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:44:25,684 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:25,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:25,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:44:25,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:25,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:25,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1876587044, now seen corresponding path program 1 times [2022-10-16 12:44:25,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:25,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370866451] [2022-10-16 12:44:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:25,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:25,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370866451] [2022-10-16 12:44:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370866451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:25,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:25,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702810788] [2022-10-16 12:44:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:25,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:25,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:25,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:25,977 INFO L87 Difference]: Start difference. First operand 1299 states and 1785 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:26,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:26,108 INFO L93 Difference]: Finished difference Result 2619 states and 3607 transitions. [2022-10-16 12:44:26,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:26,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-16 12:44:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:26,120 INFO L225 Difference]: With dead ends: 2619 [2022-10-16 12:44:26,121 INFO L226 Difference]: Without dead ends: 1323 [2022-10-16 12:44:26,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:26,130 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 9 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:26,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1495 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-10-16 12:44:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1321. [2022-10-16 12:44:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 979 states have (on average 1.4555669050051072) internal successors, (1425), 1057 states have internal predecessors, (1425), 195 states have call successors, (195), 75 states have call predecessors, (195), 75 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2022-10-16 12:44:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1815 transitions. [2022-10-16 12:44:26,215 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1815 transitions. Word has length 19 [2022-10-16 12:44:26,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:26,216 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1815 transitions. [2022-10-16 12:44:26,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1815 transitions. [2022-10-16 12:44:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 12:44:26,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:26,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:26,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:44:26,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:26,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2111267369, now seen corresponding path program 1 times [2022-10-16 12:44:26,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:26,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986378712] [2022-10-16 12:44:26,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:26,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:26,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986378712] [2022-10-16 12:44:26,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986378712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:26,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:26,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:26,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185983167] [2022-10-16 12:44:26,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:26,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:26,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:26,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:26,394 INFO L87 Difference]: Start difference. First operand 1321 states and 1815 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:26,564 INFO L93 Difference]: Finished difference Result 3619 states and 4959 transitions. [2022-10-16 12:44:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-10-16 12:44:26,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:26,583 INFO L225 Difference]: With dead ends: 3619 [2022-10-16 12:44:26,583 INFO L226 Difference]: Without dead ends: 2301 [2022-10-16 12:44:26,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:26,592 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 743 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:26,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1919 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-10-16 12:44:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2173. [2022-10-16 12:44:26,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1648 states have (on average 1.4520631067961165) internal successors, (2393), 1730 states have internal predecessors, (2393), 326 states have call successors, (326), 127 states have call predecessors, (326), 127 states have return successors, (326), 326 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-16 12:44:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3045 transitions. [2022-10-16 12:44:26,758 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3045 transitions. Word has length 22 [2022-10-16 12:44:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:26,759 INFO L495 AbstractCegarLoop]: Abstraction has 2173 states and 3045 transitions. [2022-10-16 12:44:26,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3045 transitions. [2022-10-16 12:44:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:44:26,760 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:26,760 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:26,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:44:26,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:26,762 INFO L85 PathProgramCache]: Analyzing trace with hash 503303658, now seen corresponding path program 1 times [2022-10-16 12:44:26,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:26,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458953932] [2022-10-16 12:44:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:26,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:26,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:26,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458953932] [2022-10-16 12:44:26,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458953932] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:26,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:26,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551598099] [2022-10-16 12:44:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:26,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:26,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:26,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:26,879 INFO L87 Difference]: Start difference. First operand 2173 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:44:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:27,026 INFO L93 Difference]: Finished difference Result 4343 states and 6087 transitions. [2022-10-16 12:44:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:27,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 12:44:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:27,044 INFO L225 Difference]: With dead ends: 4343 [2022-10-16 12:44:27,044 INFO L226 Difference]: Without dead ends: 2173 [2022-10-16 12:44:27,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:27,057 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 745 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:27,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 754 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2173 states. [2022-10-16 12:44:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2173 to 1781. [2022-10-16 12:44:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1344 states have (on average 1.4494047619047619) internal successors, (1948), 1424 states have internal predecessors, (1948), 263 states have call successors, (263), 102 states have call predecessors, (263), 102 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2022-10-16 12:44:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2474 transitions. [2022-10-16 12:44:27,187 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2474 transitions. Word has length 25 [2022-10-16 12:44:27,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:27,188 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 2474 transitions. [2022-10-16 12:44:27,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:44:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2474 transitions. [2022-10-16 12:44:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 12:44:27,189 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:27,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:27,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:44:27,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1145202073, now seen corresponding path program 1 times [2022-10-16 12:44:27,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:27,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754646933] [2022-10-16 12:44:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:27,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:44:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:44:27,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:27,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754646933] [2022-10-16 12:44:27,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754646933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:27,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:27,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:27,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107799488] [2022-10-16 12:44:27,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:27,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:27,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:27,386 INFO L87 Difference]: Start difference. First operand 1781 states and 2474 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:27,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:27,496 INFO L93 Difference]: Finished difference Result 1781 states and 2474 transitions. [2022-10-16 12:44:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:27,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-10-16 12:44:27,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:27,510 INFO L225 Difference]: With dead ends: 1781 [2022-10-16 12:44:27,510 INFO L226 Difference]: Without dead ends: 1779 [2022-10-16 12:44:27,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:27,513 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 11 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:27,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1480 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:27,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2022-10-16 12:44:27,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2022-10-16 12:44:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1344 states have (on average 1.443452380952381) internal successors, (1940), 1422 states have internal predecessors, (1940), 263 states have call successors, (263), 102 states have call predecessors, (263), 102 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2022-10-16 12:44:27,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2466 transitions. [2022-10-16 12:44:27,641 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2466 transitions. Word has length 31 [2022-10-16 12:44:27,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:27,641 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2466 transitions. [2022-10-16 12:44:27,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2466 transitions. [2022-10-16 12:44:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:44:27,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:27,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:27,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:44:27,644 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:27,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1141526866, now seen corresponding path program 1 times [2022-10-16 12:44:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:27,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43968340] [2022-10-16 12:44:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:44:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:44:27,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:27,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43968340] [2022-10-16 12:44:27,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43968340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:27,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099262653] [2022-10-16 12:44:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:27,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:27,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:27,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:27,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:44:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:28,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:28,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:44:28,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:28,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099262653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:28,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:28,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:44:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606038277] [2022-10-16 12:44:28,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:28,298 INFO L87 Difference]: Start difference. First operand 1779 states and 2466 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:28,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:28,440 INFO L93 Difference]: Finished difference Result 1793 states and 2486 transitions. [2022-10-16 12:44:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-10-16 12:44:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:28,457 INFO L225 Difference]: With dead ends: 1793 [2022-10-16 12:44:28,458 INFO L226 Difference]: Without dead ends: 1791 [2022-10-16 12:44:28,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:28,461 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 252 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:28,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1758 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-10-16 12:44:28,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1753. [2022-10-16 12:44:28,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1322 states have (on average 1.4432677760968229) internal successors, (1908), 1398 states have internal predecessors, (1908), 261 states have call successors, (261), 102 states have call predecessors, (261), 102 states have return successors, (261), 261 states have call predecessors, (261), 261 states have call successors, (261) [2022-10-16 12:44:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2430 transitions. [2022-10-16 12:44:28,613 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2430 transitions. Word has length 32 [2022-10-16 12:44:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:28,613 INFO L495 AbstractCegarLoop]: Abstraction has 1753 states and 2430 transitions. [2022-10-16 12:44:28,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2430 transitions. [2022-10-16 12:44:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 12:44:28,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:28,615 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:44:28,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:28,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash -504001576, now seen corresponding path program 1 times [2022-10-16 12:44:28,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:28,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209010842] [2022-10-16 12:44:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:44:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:44:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209010842] [2022-10-16 12:44:29,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209010842] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505967277] [2022-10-16 12:44:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:29,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:29,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:29,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:29,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:44:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:29,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:29,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:44:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:44:29,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505967277] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:44:29,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:44:29,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:44:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979599482] [2022-10-16 12:44:29,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:44:29,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:44:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:44:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:29,559 INFO L87 Difference]: Start difference. First operand 1753 states and 2430 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 12:44:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:31,178 INFO L93 Difference]: Finished difference Result 5184 states and 7039 transitions. [2022-10-16 12:44:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:44:31,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2022-10-16 12:44:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:31,216 INFO L225 Difference]: With dead ends: 5184 [2022-10-16 12:44:31,217 INFO L226 Difference]: Without dead ends: 5183 [2022-10-16 12:44:31,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:31,222 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 4290 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:31,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4290 Valid, 4337 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 12:44:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5183 states. [2022-10-16 12:44:31,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5183 to 3119. [2022-10-16 12:44:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2403 states have (on average 1.4427798585101956) internal successors, (3467), 2485 states have internal predecessors, (3467), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4397 transitions. [2022-10-16 12:44:31,527 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4397 transitions. Word has length 36 [2022-10-16 12:44:31,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:31,527 INFO L495 AbstractCegarLoop]: Abstraction has 3119 states and 4397 transitions. [2022-10-16 12:44:31,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 12:44:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4397 transitions. [2022-10-16 12:44:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 12:44:31,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:31,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:31,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:31,745 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,SelfDestructingSolverStorable7 [2022-10-16 12:44:31,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:31,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash 234780125, now seen corresponding path program 1 times [2022-10-16 12:44:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:31,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117030122] [2022-10-16 12:44:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:44:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:31,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:32,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117030122] [2022-10-16 12:44:32,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117030122] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:32,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873664038] [2022-10-16 12:44:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:32,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:32,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:32,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:44:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:32,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:32,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:32,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:32,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873664038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:32,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:32,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:32,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718543115] [2022-10-16 12:44:32,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:32,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:32,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:32,344 INFO L87 Difference]: Start difference. First operand 3119 states and 4397 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:44:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:32,580 INFO L93 Difference]: Finished difference Result 6236 states and 8795 transitions. [2022-10-16 12:44:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-10-16 12:44:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:32,605 INFO L225 Difference]: With dead ends: 6236 [2022-10-16 12:44:32,605 INFO L226 Difference]: Without dead ends: 3120 [2022-10-16 12:44:32,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:32,621 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 14 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:32,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1471 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2022-10-16 12:44:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 3120. [2022-10-16 12:44:32,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2405 states have (on average 1.4415800415800415) internal successors, (3467), 2486 states have internal predecessors, (3467), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4397 transitions. [2022-10-16 12:44:32,848 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4397 transitions. Word has length 36 [2022-10-16 12:44:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:32,848 INFO L495 AbstractCegarLoop]: Abstraction has 3120 states and 4397 transitions. [2022-10-16 12:44:32,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:44:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4397 transitions. [2022-10-16 12:44:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 12:44:32,849 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:32,850 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:44:32,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:33,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:33,064 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:33,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1555821306, now seen corresponding path program 1 times [2022-10-16 12:44:33,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:33,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856668201] [2022-10-16 12:44:33,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:33,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:44:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:44:33,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:33,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856668201] [2022-10-16 12:44:33,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856668201] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:33,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402977551] [2022-10-16 12:44:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:33,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:33,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:33,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:33,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:44:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:33,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:33,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:33,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:33,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402977551] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:33,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:33,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:44:33,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509503814] [2022-10-16 12:44:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:33,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:33,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:33,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:33,682 INFO L87 Difference]: Start difference. First operand 3120 states and 4397 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:34,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:34,428 INFO L93 Difference]: Finished difference Result 6752 states and 9450 transitions. [2022-10-16 12:44:34,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:34,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-10-16 12:44:34,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:34,456 INFO L225 Difference]: With dead ends: 6752 [2022-10-16 12:44:34,456 INFO L226 Difference]: Without dead ends: 3635 [2022-10-16 12:44:34,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:34,474 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1802 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:34,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1534 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 12:44:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2022-10-16 12:44:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3119. [2022-10-16 12:44:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2405 states have (on average 1.4357588357588358) internal successors, (3453), 2485 states have internal predecessors, (3453), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4383 transitions. [2022-10-16 12:44:34,775 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4383 transitions. Word has length 37 [2022-10-16 12:44:34,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:34,776 INFO L495 AbstractCegarLoop]: Abstraction has 3119 states and 4383 transitions. [2022-10-16 12:44:34,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:44:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4383 transitions. [2022-10-16 12:44:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 12:44:34,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:34,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:34,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:34,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:34,994 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:34,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:34,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1311749666, now seen corresponding path program 1 times [2022-10-16 12:44:34,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:34,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916914676] [2022-10-16 12:44:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:34,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:35,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:44:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:35,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:35,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916914676] [2022-10-16 12:44:35,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916914676] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:35,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596270008] [2022-10-16 12:44:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:35,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:35,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:35,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:35,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:44:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:35,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:35,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:35,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:35,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596270008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:35,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:35,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:35,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980626216] [2022-10-16 12:44:35,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:35,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:35,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:35,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:35,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:35,516 INFO L87 Difference]: Start difference. First operand 3119 states and 4383 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:44:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:35,732 INFO L93 Difference]: Finished difference Result 3547 states and 4987 transitions. [2022-10-16 12:44:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-10-16 12:44:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:35,757 INFO L225 Difference]: With dead ends: 3547 [2022-10-16 12:44:35,758 INFO L226 Difference]: Without dead ends: 3546 [2022-10-16 12:44:35,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:35,761 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 233 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:35,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1739 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:35,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2022-10-16 12:44:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 3118. [2022-10-16 12:44:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 2405 states have (on average 1.4349272349272348) internal successors, (3451), 2484 states have internal predecessors, (3451), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4381 transitions. [2022-10-16 12:44:36,074 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4381 transitions. Word has length 37 [2022-10-16 12:44:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:36,074 INFO L495 AbstractCegarLoop]: Abstraction has 3118 states and 4381 transitions. [2022-10-16 12:44:36,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:44:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4381 transitions. [2022-10-16 12:44:36,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 12:44:36,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:36,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:36,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 12:44:36,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 12:44:36,290 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:36,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1473651631, now seen corresponding path program 1 times [2022-10-16 12:44:36,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:36,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162206183] [2022-10-16 12:44:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:36,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162206183] [2022-10-16 12:44:36,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162206183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926876523] [2022-10-16 12:44:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:36,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:36,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:36,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:36,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:44:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:36,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:36,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:36,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:36,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926876523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:36,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:36,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:36,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512909444] [2022-10-16 12:44:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:36,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:36,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:36,859 INFO L87 Difference]: Start difference. First operand 3118 states and 4381 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:37,089 INFO L93 Difference]: Finished difference Result 6241 states and 8779 transitions. [2022-10-16 12:44:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:37,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-10-16 12:44:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:37,108 INFO L225 Difference]: With dead ends: 6241 [2022-10-16 12:44:37,108 INFO L226 Difference]: Without dead ends: 3126 [2022-10-16 12:44:37,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:37,123 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 14 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:37,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1457 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2022-10-16 12:44:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 3126. [2022-10-16 12:44:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 2415 states have (on average 1.4289855072463769) internal successors, (3451), 2492 states have internal predecessors, (3451), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 4381 transitions. [2022-10-16 12:44:37,382 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 4381 transitions. Word has length 39 [2022-10-16 12:44:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:37,382 INFO L495 AbstractCegarLoop]: Abstraction has 3126 states and 4381 transitions. [2022-10-16 12:44:37,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 4381 transitions. [2022-10-16 12:44:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 12:44:37,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:37,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:37,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:37,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:37,598 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1561438599, now seen corresponding path program 1 times [2022-10-16 12:44:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:37,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434992139] [2022-10-16 12:44:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:37,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:37,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:37,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434992139] [2022-10-16 12:44:37,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434992139] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:37,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473206932] [2022-10-16 12:44:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:37,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:37,760 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:37,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 12:44:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:38,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:38,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:38,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:38,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473206932] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:38,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:38,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773907631] [2022-10-16 12:44:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:38,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:38,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:38,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:38,100 INFO L87 Difference]: Start difference. First operand 3126 states and 4381 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:38,355 INFO L93 Difference]: Finished difference Result 3790 states and 5407 transitions. [2022-10-16 12:44:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:38,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-16 12:44:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:38,377 INFO L225 Difference]: With dead ends: 3790 [2022-10-16 12:44:38,377 INFO L226 Difference]: Without dead ends: 3788 [2022-10-16 12:44:38,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:38,381 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 178 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:38,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1533 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2022-10-16 12:44:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3124. [2022-10-16 12:44:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2415 states have (on average 1.4248447204968944) internal successors, (3441), 2490 states have internal predecessors, (3441), 465 states have call successors, (465), 183 states have call predecessors, (465), 183 states have return successors, (465), 465 states have call predecessors, (465), 465 states have call successors, (465) [2022-10-16 12:44:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4371 transitions. [2022-10-16 12:44:38,633 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4371 transitions. Word has length 40 [2022-10-16 12:44:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:38,633 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 4371 transitions. [2022-10-16 12:44:38,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:44:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4371 transitions. [2022-10-16 12:44:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 12:44:38,635 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:38,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:38,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:38,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:38,849 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1906257759, now seen corresponding path program 1 times [2022-10-16 12:44:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:38,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441382743] [2022-10-16 12:44:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:38,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:44:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:44:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:44:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:39,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:39,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441382743] [2022-10-16 12:44:39,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441382743] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:39,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106133708] [2022-10-16 12:44:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:39,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:39,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:44:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:39,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:39,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:39,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:44:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:39,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106133708] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:44:39,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:44:39,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 12:44:39,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400624144] [2022-10-16 12:44:39,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:44:39,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:44:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:39,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:44:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:39,521 INFO L87 Difference]: Start difference. First operand 3124 states and 4371 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-16 12:44:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:39,885 INFO L93 Difference]: Finished difference Result 6395 states and 8931 transitions. [2022-10-16 12:44:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:44:39,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2022-10-16 12:44:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:39,903 INFO L225 Difference]: With dead ends: 6395 [2022-10-16 12:44:39,903 INFO L226 Difference]: Without dead ends: 3274 [2022-10-16 12:44:39,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:39,919 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 47 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:39,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 2946 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2022-10-16 12:44:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3274. [2022-10-16 12:44:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2553 states have (on average 1.4065804935370152) internal successors, (3591), 2628 states have internal predecessors, (3591), 477 states have call successors, (477), 183 states have call predecessors, (477), 183 states have return successors, (477), 477 states have call predecessors, (477), 477 states have call successors, (477) [2022-10-16 12:44:40,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4545 transitions. [2022-10-16 12:44:40,182 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4545 transitions. Word has length 47 [2022-10-16 12:44:40,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:40,182 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4545 transitions. [2022-10-16 12:44:40,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-16 12:44:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4545 transitions. [2022-10-16 12:44:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 12:44:40,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:40,185 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:40,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:40,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 12:44:40,401 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pg_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pg_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2022-10-16 12:44:40,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1182669106, now seen corresponding path program 1 times [2022-10-16 12:44:40,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:40,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921046744] [2022-10-16 12:44:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:40,360 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 98 DAG size of output: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 12:46:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:46:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:46:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 12:46:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:47,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 12:46:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 12:46:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 12:46:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:46:47,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:46:47,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921046744] [2022-10-16 12:46:47,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921046744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:46:47,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591807904] [2022-10-16 12:46:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:46:47,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:46:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:46:47,253 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:46:47,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 12:46:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:49,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 135 conjunts are in the unsatisfiable core [2022-10-16 12:46:49,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:46:49,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:46:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:46:49,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2022-10-16 12:46:49,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:46:49,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-10-16 12:46:49,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:46:49,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:46:50,439 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 12:46:50,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 12:46:50,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-10-16 12:46:50,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 12:46:50,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-10-16 12:46:50,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 12:46:50,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-10-16 12:46:52,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:46:52,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2022-10-16 12:47:00,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-10-16 12:47:20,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 99 [2022-10-16 12:47:41,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114