/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--pt.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:44:32,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:44:32,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:44:32,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:44:32,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:44:32,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:44:32,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:44:32,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:44:32,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:44:32,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:44:32,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:44:32,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:44:32,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:44:32,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:44:32,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:44:32,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:44:32,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:44:32,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:44:32,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:44:32,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:44:32,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:44:32,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:44:32,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:44:32,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:44:32,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:44:32,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:44:32,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:44:32,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:44:32,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:44:32,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:44:32,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:44:32,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:44:32,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:44:32,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:44:32,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:44:32,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:44:32,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:44:32,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:44:32,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:44:32,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:44:32,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:44:32,769 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 12:44:32,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:44:32,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:44:32,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:44:32,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:44:32,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:44:32,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:44:32,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:44:32,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:44:32,821 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:44:32,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:44:32,822 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:44:32,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:44:32,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:44:32,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:44:32,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:44:32,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:44:32,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:44:32,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:44:32,824 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:44:32,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:44:32,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:44:32,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:44:32,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:44:32,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:44:32,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:44:32,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:44:32,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:44:32,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:44:32,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:44:32,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:44:32,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:44:32,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:44:32,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:44:32,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:44:33,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:44:33,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:44:33,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:44:33,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:44:33,301 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:44:33,303 INFO L432 ainManager$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--pt.ko-main.cil.out.i [2022-10-16 12:44:33,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc696494/b031aa647e3749be82bfaf63f7007aac/FLAG13e9e60cd [2022-10-16 12:44:34,241 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:44:34,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-10-16 12:44:34,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc696494/b031aa647e3749be82bfaf63f7007aac/FLAG13e9e60cd [2022-10-16 12:44:34,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc696494/b031aa647e3749be82bfaf63f7007aac [2022-10-16 12:44:34,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:44:34,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:44:34,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:44:34,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:44:34,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:44:34,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:34" (1/1) ... [2022-10-16 12:44:34,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356feb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:34, skipping insertion in model container [2022-10-16 12:44:34,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:34" (1/1) ... [2022-10-16 12:44:34,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:44:34,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:44:35,723 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--pt.ko-main.cil.out.i[119285,119298] [2022-10-16 12:44:35,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:44:35,874 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:44:36,159 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--pt.ko-main.cil.out.i[119285,119298] [2022-10-16 12:44:36,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:44:36,240 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:44:36,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36 WrapperNode [2022-10-16 12:44:36,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:44:36,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:44:36,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:44:36,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:44:36,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,433 INFO L138 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1514 [2022-10-16 12:44:36,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:44:36,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:44:36,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:44:36,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:44:36,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:44:36,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:44:36,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:44:36,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:44:36,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (1/1) ... [2022-10-16 12:44:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:44:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:36,680 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 12:44:36,708 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 12:44:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-16 12:44:36,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-16 12:44:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 12:44:36,758 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 12:44:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-16 12:44:36,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-16 12:44:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2022-10-16 12:44:36,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2022-10-16 12:44:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-16 12:44:36,759 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-16 12:44:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:44:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-16 12:44:36,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-16 12:44:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 12:44:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 12:44:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-16 12:44:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-16 12:44:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:44:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:44:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-16 12:44:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-16 12:44:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-16 12:44:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-16 12:44:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-16 12:44:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-16 12:44:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:44:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:44:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:44:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-10-16 12:44:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-10-16 12:44:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:44:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:44:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:44:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:44:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-16 12:44:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-16 12:44:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:44:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-16 12:44:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-16 12:44:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2022-10-16 12:44:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2022-10-16 12:44:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:44:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:44:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-16 12:44:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-16 12:44:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:44:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:44:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:44:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2022-10-16 12:44:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2022-10-16 12:44:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 12:44:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 12:44:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 12:44:36,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 12:44:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:44:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:44:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-16 12:44:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-16 12:44:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-16 12:44:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-16 12:44:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:44:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-16 12:44:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-16 12:44:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-16 12:44:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-16 12:44:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-16 12:44:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-16 12:44:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-16 12:44:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-16 12:44:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:44:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:44:36,771 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-16 12:44:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-16 12:44:36,772 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-16 12:44:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-16 12:44:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:44:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:44:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-16 12:44:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-16 12:44:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-16 12:44:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-16 12:44:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-16 12:44:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-16 12:44:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-16 12:44:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-16 12:44:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:44:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-16 12:44:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-16 12:44:36,775 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-16 12:44:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-16 12:44:36,775 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:44:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:44:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:44:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:44:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-16 12:44:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-16 12:44:37,368 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:44:37,375 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:44:45,536 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:44:45,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:44:45,568 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 12:44:45,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:44:45 BoogieIcfgContainer [2022-10-16 12:44:45,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:44:45,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:44:45,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:44:45,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:44:45,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:44:34" (1/3) ... [2022-10-16 12:44:45,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5617e5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:44:45, skipping insertion in model container [2022-10-16 12:44:45,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:36" (2/3) ... [2022-10-16 12:44:45,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5617e5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:44:45, skipping insertion in model container [2022-10-16 12:44:45,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:44:45" (3/3) ... [2022-10-16 12:44:45,586 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-10-16 12:44:45,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:44:45,609 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 124 error locations. [2022-10-16 12:44:45,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:44:45,739 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;@6bc897d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:44:45,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-10-16 12:44:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 943 states, 613 states have (on average 1.5220228384991843) internal successors, (933), 758 states have internal predecessors, (933), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2022-10-16 12:44:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 12:44:45,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:45,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:45,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash -442246801, now seen corresponding path program 1 times [2022-10-16 12:44:45,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:45,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922465890] [2022-10-16 12:44:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:45,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:46,338 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 12:44:46,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:46,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922465890] [2022-10-16 12:44:46,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922465890] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:46,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:46,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:46,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322319526] [2022-10-16 12:44:46,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:46,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:46,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:46,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:46,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:46,406 INFO L87 Difference]: Start difference. First operand has 943 states, 613 states have (on average 1.5220228384991843) internal successors, (933), 758 states have internal predecessors, (933), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12:44:46,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:46,983 INFO L93 Difference]: Finished difference Result 2345 states and 3201 transitions. [2022-10-16 12:44:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:46,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-10-16 12:44:46,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:47,013 INFO L225 Difference]: With dead ends: 2345 [2022-10-16 12:44:47,014 INFO L226 Difference]: Without dead ends: 1374 [2022-10-16 12:44:47,032 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 12:44:47,037 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 614 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:47,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 2762 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:44:47,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-10-16 12:44:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1276. [2022-10-16 12:44:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 866 states have (on average 1.4988452655889146) internal successors, (1298), 1006 states have internal predecessors, (1298), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2022-10-16 12:44:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1742 transitions. [2022-10-16 12:44:47,204 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1742 transitions. Word has length 12 [2022-10-16 12:44:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:47,204 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1742 transitions. [2022-10-16 12:44:47,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12:44:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1742 transitions. [2022-10-16 12:44:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 12:44:47,206 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:47,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:47,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:44:47,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash -655714814, now seen corresponding path program 1 times [2022-10-16 12:44:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:47,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207069597] [2022-10-16 12:44:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:47,364 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 12:44:47,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:47,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207069597] [2022-10-16 12:44:47,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207069597] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:47,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:47,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:47,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930039898] [2022-10-16 12:44:47,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:47,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:47,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:47,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:47,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:47,370 INFO L87 Difference]: Start difference. First operand 1276 states and 1742 transitions. 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 12:44:47,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:47,622 INFO L93 Difference]: Finished difference Result 3270 states and 4437 transitions. [2022-10-16 12:44:47,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:47,623 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 12:44:47,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:47,645 INFO L225 Difference]: With dead ends: 3270 [2022-10-16 12:44:47,645 INFO L226 Difference]: Without dead ends: 1997 [2022-10-16 12:44:47,652 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 12:44:47,654 INFO L413 NwaCegarLoop]: 2022 mSDtfsCounter, 1140 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:47,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 2993 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-10-16 12:44:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1915. [2022-10-16 12:44:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1339 states have (on average 1.486183719193428) internal successors, (1990), 1487 states have internal predecessors, (1990), 351 states have call successors, (351), 101 states have call predecessors, (351), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-10-16 12:44:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2692 transitions. [2022-10-16 12:44:47,831 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2692 transitions. Word has length 13 [2022-10-16 12:44:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:47,832 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 2692 transitions. [2022-10-16 12:44:47,832 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 12:44:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2692 transitions. [2022-10-16 12:44:47,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:44:47,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:47,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:47,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:44:47,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1029085316, now seen corresponding path program 1 times [2022-10-16 12:44:47,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:47,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182084115] [2022-10-16 12:44:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:48,059 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 12:44:48,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:48,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182084115] [2022-10-16 12:44:48,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182084115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:48,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:48,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:48,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171155751] [2022-10-16 12:44:48,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:48,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:48,062 INFO L87 Difference]: Start difference. First operand 1915 states and 2692 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:44:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:48,304 INFO L93 Difference]: Finished difference Result 3867 states and 5443 transitions. [2022-10-16 12:44:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:48,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-10-16 12:44:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:48,321 INFO L225 Difference]: With dead ends: 3867 [2022-10-16 12:44:48,321 INFO L226 Difference]: Without dead ends: 1955 [2022-10-16 12:44:48,331 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 12:44:48,333 INFO L413 NwaCegarLoop]: 1192 mSDtfsCounter, 17 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:48,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2377 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:44:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2022-10-16 12:44:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1951. [2022-10-16 12:44:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1369 states have (on average 1.4857560262965668) internal successors, (2034), 1517 states have internal predecessors, (2034), 357 states have call successors, (357), 101 states have call predecessors, (357), 101 states have return successors, (357), 357 states have call predecessors, (357), 357 states have call successors, (357) [2022-10-16 12:44:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2748 transitions. [2022-10-16 12:44:48,442 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2748 transitions. Word has length 16 [2022-10-16 12:44:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:48,442 INFO L495 AbstractCegarLoop]: Abstraction has 1951 states and 2748 transitions. [2022-10-16 12:44:48,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:44:48,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2748 transitions. [2022-10-16 12:44:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:44:48,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:48,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:48,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:44:48,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1029085280, now seen corresponding path program 1 times [2022-10-16 12:44:48,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:48,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682931891] [2022-10-16 12:44:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:48,616 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 12:44:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:48,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682931891] [2022-10-16 12:44:48,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682931891] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:48,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:48,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561868347] [2022-10-16 12:44:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:48,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:48,620 INFO L87 Difference]: Start difference. First operand 1951 states and 2748 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:44:48,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:48,828 INFO L93 Difference]: Finished difference Result 4448 states and 6327 transitions. [2022-10-16 12:44:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:48,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-10-16 12:44:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:48,847 INFO L225 Difference]: With dead ends: 4448 [2022-10-16 12:44:48,848 INFO L226 Difference]: Without dead ends: 2500 [2022-10-16 12:44:48,857 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 12:44:48,858 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 335 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:48,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 2845 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:48,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2022-10-16 12:44:48,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1973. [2022-10-16 12:44:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1391 states have (on average 1.4809489575844716) internal successors, (2060), 1539 states have internal predecessors, (2060), 357 states have call successors, (357), 101 states have call predecessors, (357), 101 states have return successors, (357), 357 states have call predecessors, (357), 357 states have call successors, (357) [2022-10-16 12:44:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2774 transitions. [2022-10-16 12:44:48,978 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2774 transitions. Word has length 16 [2022-10-16 12:44:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:48,978 INFO L495 AbstractCegarLoop]: Abstraction has 1973 states and 2774 transitions. [2022-10-16 12:44:48,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:44:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2774 transitions. [2022-10-16 12:44:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 12:44:48,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:48,980 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:48,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:44:48,980 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:48,981 INFO L85 PathProgramCache]: Analyzing trace with hash 188380384, now seen corresponding path program 1 times [2022-10-16 12:44:48,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:48,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120020459] [2022-10-16 12:44:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:49,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:49,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120020459] [2022-10-16 12:44:49,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120020459] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:49,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:49,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:49,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471323748] [2022-10-16 12:44:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:49,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:49,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:49,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:49,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:49,151 INFO L87 Difference]: Start difference. First operand 1973 states and 2774 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 12:44:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:49,283 INFO L93 Difference]: Finished difference Result 1973 states and 2774 transitions. [2022-10-16 12:44:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-10-16 12:44:49,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:49,297 INFO L225 Difference]: With dead ends: 1973 [2022-10-16 12:44:49,297 INFO L226 Difference]: Without dead ends: 1972 [2022-10-16 12:44:49,299 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 12:44:49,300 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 18 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:49,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2353 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:44:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-10-16 12:44:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2022-10-16 12:44:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1391 states have (on average 1.4780733285406182) internal successors, (2056), 1538 states have internal predecessors, (2056), 357 states have call successors, (357), 101 states have call predecessors, (357), 101 states have return successors, (357), 357 states have call predecessors, (357), 357 states have call successors, (357) [2022-10-16 12:44:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2770 transitions. [2022-10-16 12:44:49,405 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2770 transitions. Word has length 22 [2022-10-16 12:44:49,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:49,406 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2770 transitions. [2022-10-16 12:44:49,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 12:44:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2770 transitions. [2022-10-16 12:44:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:44:49,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:49,407 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:44:49,408 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:49,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1544826265, now seen corresponding path program 1 times [2022-10-16 12:44:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:49,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058791355] [2022-10-16 12:44:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:49,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:49,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:49,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058791355] [2022-10-16 12:44:49,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058791355] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:49,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667996933] [2022-10-16 12:44:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:49,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:49,634 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 12:44:49,653 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 12:44:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:50,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:50,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:50,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:50,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667996933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:50,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:50,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:44:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383402233] [2022-10-16 12:44:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:50,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:50,201 INFO L87 Difference]: Start difference. First operand 1972 states and 2770 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 12:44:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:50,503 INFO L93 Difference]: Finished difference Result 2040 states and 2860 transitions. [2022-10-16 12:44:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:50,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2022-10-16 12:44:50,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:50,519 INFO L225 Difference]: With dead ends: 2040 [2022-10-16 12:44:50,519 INFO L226 Difference]: Without dead ends: 2039 [2022-10-16 12:44:50,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 12:44:50,522 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 360 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:50,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2994 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:44:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-10-16 12:44:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1933. [2022-10-16 12:44:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1359 states have (on average 1.479028697571744) internal successors, (2010), 1505 states have internal predecessors, (2010), 351 states have call successors, (351), 101 states have call predecessors, (351), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-10-16 12:44:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2712 transitions. [2022-10-16 12:44:50,649 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2712 transitions. Word has length 23 [2022-10-16 12:44:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:50,650 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2712 transitions. [2022-10-16 12:44:50,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 12:44:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2712 transitions. [2022-10-16 12:44:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:44:50,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:50,652 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 12:44:50,696 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 12:44:50,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 12:44:50,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:50,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:50,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1320696779, now seen corresponding path program 1 times [2022-10-16 12:44:50,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:50,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984334168] [2022-10-16 12:44:50,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:50,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:51,049 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 12:44:51,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:51,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984334168] [2022-10-16 12:44:51,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984334168] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:51,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:51,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:51,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77452704] [2022-10-16 12:44:51,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:51,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:51,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:51,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:51,052 INFO L87 Difference]: Start difference. First operand 1933 states and 2712 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 12:44:51,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:51,176 INFO L93 Difference]: Finished difference Result 3863 states and 5421 transitions. [2022-10-16 12:44:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:51,177 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 12:44:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:51,192 INFO L225 Difference]: With dead ends: 3863 [2022-10-16 12:44:51,192 INFO L226 Difference]: Without dead ends: 1933 [2022-10-16 12:44:51,205 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 12:44:51,207 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 1182 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 1191 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 12:44:51,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 1191 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:44:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-10-16 12:44:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1933. [2022-10-16 12:44:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1359 states have (on average 1.4775570272259013) internal successors, (2008), 1505 states have internal predecessors, (2008), 351 states have call successors, (351), 101 states have call predecessors, (351), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-10-16 12:44:51,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2710 transitions. [2022-10-16 12:44:51,329 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2710 transitions. Word has length 25 [2022-10-16 12:44:51,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:51,330 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2710 transitions. [2022-10-16 12:44:51,330 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 12:44:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2710 transitions. [2022-10-16 12:44:51,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:44:51,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:51,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:51,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:44:51,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1275079469, now seen corresponding path program 1 times [2022-10-16 12:44:51,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:51,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107854587] [2022-10-16 12:44:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:51,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 12:44:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:51,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107854587] [2022-10-16 12:44:51,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107854587] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583915777] [2022-10-16 12:44:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:51,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:51,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:51,630 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 12:44:51,636 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 12:44:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:52,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:52,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:52,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:52,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:44:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:52,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583915777] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:44:52,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:44:52,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:44:52,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497702193] [2022-10-16 12:44:52,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:44:52,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:44:52,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:44:52,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:52,231 INFO L87 Difference]: Start difference. First operand 1933 states and 2710 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 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 12:44:53,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:53,631 INFO L93 Difference]: Finished difference Result 4152 states and 6076 transitions. [2022-10-16 12:44:53,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:44:53,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 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 30 [2022-10-16 12:44:53,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:53,662 INFO L225 Difference]: With dead ends: 4152 [2022-10-16 12:44:53,662 INFO L226 Difference]: Without dead ends: 4151 [2022-10-16 12:44:53,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 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 12:44:53,667 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 2327 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2553 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:53,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2553 Valid, 4363 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 12:44:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2022-10-16 12:44:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 2039. [2022-10-16 12:44:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1447 states have (on average 1.4761575673807878) internal successors, (2136), 1593 states have internal predecessors, (2136), 369 states have call successors, (369), 101 states have call predecessors, (369), 101 states have return successors, (369), 369 states have call predecessors, (369), 369 states have call successors, (369) [2022-10-16 12:44:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2874 transitions. [2022-10-16 12:44:53,847 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2874 transitions. Word has length 30 [2022-10-16 12:44:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:53,848 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2874 transitions. [2022-10-16 12:44:53,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 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 12:44:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2874 transitions. [2022-10-16 12:44:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 12:44:53,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:53,850 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] [2022-10-16 12:44:53,887 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 12:44:54,064 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 12:44:54,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:44:54,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:54,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1685920499, now seen corresponding path program 1 times [2022-10-16 12:44:54,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:54,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128505030] [2022-10-16 12:44:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:54,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 12:44:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:44:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:55,220 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 12:44:55,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:55,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128505030] [2022-10-16 12:44:55,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128505030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:55,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:55,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:44:55,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432703595] [2022-10-16 12:44:55,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:55,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:44:55,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:55,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:44:55,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:44:55,223 INFO L87 Difference]: Start difference. First operand 2039 states and 2874 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:45:02,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:04,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:06,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:08,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:10,116 INFO L93 Difference]: Finished difference Result 4095 states and 5772 transitions. [2022-10-16 12:45:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:45:10,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-10-16 12:45:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:10,133 INFO L225 Difference]: With dead ends: 4095 [2022-10-16 12:45:10,133 INFO L226 Difference]: Without dead ends: 2059 [2022-10-16 12:45:10,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:45:10,145 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 16 mSDsluCounter, 4503 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5689 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:10,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5689 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2022-10-16 12:45:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2022-10-16 12:45:10,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2057. [2022-10-16 12:45:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 1465 states have (on average 1.4744027303754266) internal successors, (2160), 1611 states have internal predecessors, (2160), 369 states have call successors, (369), 101 states have call predecessors, (369), 101 states have return successors, (369), 369 states have call predecessors, (369), 369 states have call successors, (369) [2022-10-16 12:45:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2898 transitions. [2022-10-16 12:45:10,347 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2898 transitions. Word has length 35 [2022-10-16 12:45:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:10,348 INFO L495 AbstractCegarLoop]: Abstraction has 2057 states and 2898 transitions. [2022-10-16 12:45:10,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:45:10,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2898 transitions. [2022-10-16 12:45:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 12:45:10,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:10,350 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 12:45:10,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:45:10,350 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:45:10,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:10,351 INFO L85 PathProgramCache]: Analyzing trace with hash 512495679, now seen corresponding path program 1 times [2022-10-16 12:45:10,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:10,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722963137] [2022-10-16 12:45:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:45:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:45:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:10,586 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 12:45:10,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:10,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722963137] [2022-10-16 12:45:10,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722963137] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:45:10,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879366965] [2022-10-16 12:45:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:10,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:45:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:45:10,588 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 12:45:10,599 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 12:45:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:10,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:45:10,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:45:11,017 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 12:45:11,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:45:11,091 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 12:45:11,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879366965] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:45:11,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:45:11,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 12:45:11,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123627375] [2022-10-16 12:45:11,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:45:11,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:45:11,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:45:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:45:11,096 INFO L87 Difference]: Start difference. First operand 2057 states and 2898 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:45:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:11,582 INFO L93 Difference]: Finished difference Result 4335 states and 6123 transitions. [2022-10-16 12:45:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:45:11,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2022-10-16 12:45:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:11,611 INFO L225 Difference]: With dead ends: 4335 [2022-10-16 12:45:11,612 INFO L226 Difference]: Without dead ends: 2299 [2022-10-16 12:45:11,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 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 12:45:11,625 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 108 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:11,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 4764 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:45:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2022-10-16 12:45:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2291. [2022-10-16 12:45:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1663 states have (on average 1.4576067348165964) internal successors, (2424), 1809 states have internal predecessors, (2424), 405 states have call successors, (405), 101 states have call predecessors, (405), 101 states have return successors, (405), 405 states have call predecessors, (405), 405 states have call successors, (405) [2022-10-16 12:45:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3234 transitions. [2022-10-16 12:45:11,839 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3234 transitions. Word has length 39 [2022-10-16 12:45:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:11,839 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3234 transitions. [2022-10-16 12:45:11,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:45:11,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3234 transitions. [2022-10-16 12:45:11,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 12:45:11,843 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:11,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:45:11,889 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 12:45:12,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:45:12,059 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:45:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 996584207, now seen corresponding path program 1 times [2022-10-16 12:45:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630976340] [2022-10-16 12:45:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:12,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 12:45:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 12:45:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:14,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:14,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630976340] [2022-10-16 12:45:14,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630976340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:45:14,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764063720] [2022-10-16 12:45:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:14,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:45:14,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:45:14,103 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 12:45:14,125 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 12:45:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:14,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 12:45:14,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:45:14,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:45:14,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:45:14,623 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 17 treesize of output 21 [2022-10-16 12:45:14,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:45:14,911 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 12:45:14,986 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 12:45:15,157 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 12:45:15,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:45:15,227 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 19 treesize of output 7 [2022-10-16 12:45:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:15,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:45:15,286 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1156 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1156) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:45:15,303 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1156 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1156) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:45:15,322 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1156 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1156) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:45:15,348 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1156 (Array Int Int)) (v_ArrVal_1151 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1151) |c_~#pt~0.base| v_ArrVal_1156) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:45:15,375 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1156 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1156) (select c_~drives~0.base 1)) (select c_~drives~0.offset 1)) 0)) is different from false [2022-10-16 12:45:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-10-16 12:45:15,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764063720] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:45:15,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:45:15,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2022-10-16 12:45:15,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818106010] [2022-10-16 12:45:15,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:45:15,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 12:45:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 12:45:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=144, Unknown=5, NotChecked=140, Total=342 [2022-10-16 12:45:15,430 INFO L87 Difference]: Start difference. First operand 2291 states and 3234 transitions. Second operand has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:45:26,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:28,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:30,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:32,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:34,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:39,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:39,692 INFO L93 Difference]: Finished difference Result 4567 states and 6448 transitions. [2022-10-16 12:45:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:45:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2022-10-16 12:45:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:39,710 INFO L225 Difference]: With dead ends: 4567 [2022-10-16 12:45:39,710 INFO L226 Difference]: Without dead ends: 2297 [2022-10-16 12:45:39,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 76 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=164, Unknown=5, NotChecked=150, Total=380 [2022-10-16 12:45:39,723 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 20 mSDsluCounter, 13365 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14552 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 561 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:39,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14552 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 5 Unknown, 561 Unchecked, 23.8s Time] [2022-10-16 12:45:39,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2022-10-16 12:45:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2297. [2022-10-16 12:45:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 1669 states have (on average 1.4559616536848412) internal successors, (2430), 1815 states have internal predecessors, (2430), 405 states have call successors, (405), 101 states have call predecessors, (405), 101 states have return successors, (405), 405 states have call predecessors, (405), 405 states have call successors, (405) [2022-10-16 12:45:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3240 transitions. [2022-10-16 12:45:39,893 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3240 transitions. Word has length 41 [2022-10-16 12:45:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:39,894 INFO L495 AbstractCegarLoop]: Abstraction has 2297 states and 3240 transitions. [2022-10-16 12:45:39,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:45:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3240 transitions. [2022-10-16 12:45:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 12:45:39,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:39,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:45:39,938 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 12:45:40,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:45:40,111 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:45:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash 800819611, now seen corresponding path program 1 times [2022-10-16 12:45:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:40,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281463877] [2022-10-16 12:45:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 12:45:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:45:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 12:45:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:42,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281463877] [2022-10-16 12:45:42,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281463877] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:45:42,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001369934] [2022-10-16 12:45:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:42,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:45:42,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:45:42,711 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 12:45:42,734 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 12:45:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:43,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 12:45:43,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:45:43,369 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 12:45:43,369 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 12:45:43,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 12:45:43,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:45:43,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 12:45:44,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 12:45:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 12:45:44,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:45:44,651 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 12:45:44,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-10-16 12:45:44,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-10-16 12:45:44,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 12:45:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 12:45:44,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001369934] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:45:44,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:45:44,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2022-10-16 12:45:44,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718435910] [2022-10-16 12:45:44,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:45:44,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 12:45:44,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:44,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 12:45:44,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=936, Unknown=9, NotChecked=0, Total=1056 [2022-10-16 12:45:44,990 INFO L87 Difference]: Start difference. First operand 2297 states and 3240 transitions. Second operand has 33 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 25 states have internal predecessors, (83), 8 states have call successors, (13), 11 states have call predecessors, (13), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 12:46:28,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:30,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:32,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:34,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:36,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:38,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:41,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:45,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:48,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:50,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:52,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:55,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:46:57,929 INFO L93 Difference]: Finished difference Result 4447 states and 6306 transitions. [2022-10-16 12:46:57,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 12:46:57,930 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 25 states have internal predecessors, (83), 8 states have call successors, (13), 11 states have call predecessors, (13), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 49 [2022-10-16 12:46:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:46:57,999 INFO L225 Difference]: With dead ends: 4447 [2022-10-16 12:46:57,999 INFO L226 Difference]: Without dead ends: 4445 [2022-10-16 12:46:58,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=263, Invalid=1798, Unknown=9, NotChecked=0, Total=2070 [2022-10-16 12:46:58,003 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 3151 mSDsluCounter, 31179 mSDsCounter, 0 mSdLazyCounter, 5263 mSolverCounterSat, 898 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 33078 SdHoareTripleChecker+Invalid, 7384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 5263 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 1213 IncrementalHoareTripleChecker+Unchecked, 71.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:46:58,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 33078 Invalid, 7384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 5263 Invalid, 10 Unknown, 1213 Unchecked, 71.6s Time] [2022-10-16 12:46:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2022-10-16 12:46:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 3947. [2022-10-16 12:46:58,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 2905 states have (on average 1.4561101549053357) internal successors, (4230), 3100 states have internal predecessors, (4230), 742 states have call successors, (742), 188 states have call predecessors, (742), 178 states have return successors, (778), 693 states have call predecessors, (778), 742 states have call successors, (778) [2022-10-16 12:46:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 5750 transitions. [2022-10-16 12:46:58,373 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 5750 transitions. Word has length 49 [2022-10-16 12:46:58,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:46:58,373 INFO L495 AbstractCegarLoop]: Abstraction has 3947 states and 5750 transitions. [2022-10-16 12:46:58,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 25 states have internal predecessors, (83), 8 states have call successors, (13), 11 states have call predecessors, (13), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 12:46:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 5750 transitions. [2022-10-16 12:46:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 12:46:58,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:46:58,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:46:58,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:46:58,590 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,SelfDestructingSolverStorable11 [2022-10-16 12:46:58,590 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:46:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:46:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -904743381, now seen corresponding path program 2 times [2022-10-16 12:46:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:46:58,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500266309] [2022-10-16 12:46:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:46:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:46:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 12:47:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:47:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:47:00,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:00,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500266309] [2022-10-16 12:47:00,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500266309] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:00,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866405719] [2022-10-16 12:47:00,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:47:00,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:00,966 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 12:47:00,989 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 12:47:02,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 12:47:02,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:47:02,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-16 12:47:02,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:02,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:47:02,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:47:02,396 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 17 treesize of output 21 [2022-10-16 12:47:02,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:47:02,675 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 12:47:02,759 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 12:47:02,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:47:02,929 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 12:47:03,016 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 12:47:03,183 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 12:47:03,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:47:03,265 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 19 treesize of output 7 [2022-10-16 12:47:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:47:03,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:47:03,326 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1854) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:47:03,346 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:47:03,364 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:47:03,390 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int)) (v_ArrVal_1849 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1849) |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:47:03,415 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int))) (= (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:47:03,441 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1846 (Array Int Int)) (v_ArrVal_1854 (Array Int Int))) (= (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1846) |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:47:03,465 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1854 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1854) (select c_~drives~0.base 2)) (select c_~drives~0.offset 2)) 0)) is different from false [2022-10-16 12:47:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-10-16 12:47:03,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866405719] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:47:03,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:47:03,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 25 [2022-10-16 12:47:03,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472276891] [2022-10-16 12:47:03,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:47:03,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 12:47:03,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:03,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 12:47:03,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=251, Unknown=7, NotChecked=266, Total=600 [2022-10-16 12:47:03,518 INFO L87 Difference]: Start difference. First operand 3947 states and 5750 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 25 states have internal predecessors, (97), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:47:09,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:11,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:13,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:14,554 INFO L93 Difference]: Finished difference Result 7873 states and 11474 transitions. [2022-10-16 12:47:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:47:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 25 states have internal predecessors, (97), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2022-10-16 12:47:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:14,577 INFO L225 Difference]: With dead ends: 7873 [2022-10-16 12:47:14,578 INFO L226 Difference]: Without dead ends: 3953 [2022-10-16 12:47:14,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=279, Unknown=7, NotChecked=280, Total=650 [2022-10-16 12:47:14,600 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 42 mSDsluCounter, 11262 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 22 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12450 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 832 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:14,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12450 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 252 Invalid, 3 Unknown, 832 Unchecked, 10.5s Time] [2022-10-16 12:47:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3953 states. [2022-10-16 12:47:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3953 to 3953. [2022-10-16 12:47:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3953 states, 2911 states have (on average 1.455170044658193) internal successors, (4236), 3106 states have internal predecessors, (4236), 742 states have call successors, (742), 188 states have call predecessors, (742), 178 states have return successors, (778), 693 states have call predecessors, (778), 742 states have call successors, (778) [2022-10-16 12:47:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5756 transitions. [2022-10-16 12:47:14,934 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5756 transitions. Word has length 47 [2022-10-16 12:47:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:14,935 INFO L495 AbstractCegarLoop]: Abstraction has 3953 states and 5756 transitions. [2022-10-16 12:47:14,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 25 states have internal predecessors, (97), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:47:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5756 transitions. [2022-10-16 12:47:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 12:47:14,938 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:14,938 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:14,974 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 12:47:15,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:15,152 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 12:47:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1433992263, now seen corresponding path program 3 times [2022-10-16 12:47:15,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:15,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440865778] [2022-10-16 12:47:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:15,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:47:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:47:19,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:19,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440865778] [2022-10-16 12:47:19,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440865778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:19,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886981931] [2022-10-16 12:47:19,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 12:47:19,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:19,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:19,378 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 12:47:19,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process