/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 [2022-10-15 21:05:55,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:05:55,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:05:55,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:05:55,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:05:55,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:05:55,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:05:55,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:05:55,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:05:55,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:05:55,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:05:55,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:05:55,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:05:55,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:05:55,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:05:55,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:05:55,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:05:55,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:05:55,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:05:55,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:05:55,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:05:55,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:05:55,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:05:55,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:05:55,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:05:55,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:05:55,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:05:55,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:05:55,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:05:55,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:05:55,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:05:55,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:05:55,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:05:55,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:05:55,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:05:55,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:05:55,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:05:55,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:05:55,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:05:55,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:05:55,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:05:55,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:05:55,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:05:55,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:05:55,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:05:55,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:05:55,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:05:55,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:05:55,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:05:55,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:05:55,811 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:05:55,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:05:55,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:05:55,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:05:55,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:05:55,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:05:55,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:05:55,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:05:55,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:05:55,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:05:55,816 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:05:55,817 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:05:55,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:05:55,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:05:55,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:05:55,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:05:55,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:05:55,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:05:55,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:05:55,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:05:55,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:05:55,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:05:55,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:05:55,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:05:55,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:05:55,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:05:56,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:05:56,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:05:56,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:05:56,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:05:56,403 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:05:56,405 INFO L432 ainManager$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 [2022-10-15 21:05:56,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b7ecf800/13761d53357b4b9fb4c794186a144f32/FLAG05db87dc8 [2022-10-15 21:05:57,713 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:05:57,714 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 [2022-10-15 21:05:57,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b7ecf800/13761d53357b4b9fb4c794186a144f32/FLAG05db87dc8 [2022-10-15 21:05:58,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b7ecf800/13761d53357b4b9fb4c794186a144f32 [2022-10-15 21:05:58,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:05:58,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:05:58,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:05:58,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:05:58,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:05:58,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:58" (1/1) ... [2022-10-15 21:05:58,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b22ace7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:58, skipping insertion in model container [2022-10-15 21:05:58,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:58" (1/1) ... [2022-10-15 21:05:58,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:05:58,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:05:59,615 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] [2022-10-15 21:05:59,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:05:59,826 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:06:00,267 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] [2022-10-15 21:06:00,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:06:00,398 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:06:00,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00 WrapperNode [2022-10-15 21:06:00,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:06:00,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:06:00,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:06:00,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:06:00,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,634 INFO L138 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1514 [2022-10-15 21:06:00,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:06:00,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:06:00,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:06:00,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:06:00,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:06:00,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:06:00,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:06:00,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:06:00,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (1/1) ... [2022-10-15 21:06:00,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:06:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:00,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:06:00,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:06:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-15 21:06:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-15 21:06:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-15 21:06:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-15 21:06:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-15 21:06:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-15 21:06:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2022-10-15 21:06:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2022-10-15 21:06:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-15 21:06:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-15 21:06:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:06:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-15 21:06:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-15 21:06:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-15 21:06:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-15 21:06:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-15 21:06:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-15 21:06:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:06:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:06:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-15 21:06:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-15 21:06:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-15 21:06:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-15 21:06:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-15 21:06:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-15 21:06:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:06:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:06:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:06:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-10-15 21:06:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-10-15 21:06:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:06:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:06:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:06:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:06:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-15 21:06:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-15 21:06:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:06:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-15 21:06:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-15 21:06:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2022-10-15 21:06:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2022-10-15 21:06:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:06:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:06:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-15 21:06:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-15 21:06:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:06:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:06:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:06:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2022-10-15 21:06:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2022-10-15 21:06:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:06:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:06:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:06:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:06:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:06:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:06:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-15 21:06:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-15 21:06:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-15 21:06:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-15 21:06:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:06:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-15 21:06:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-15 21:06:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-15 21:06:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-15 21:06:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-15 21:06:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-15 21:06:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-15 21:06:01,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-15 21:06:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:06:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:06:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-15 21:06:01,102 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-15 21:06:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-15 21:06:01,102 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-15 21:06:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:06:01,103 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:06:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-15 21:06:01,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-15 21:06:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-15 21:06:01,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-15 21:06:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-15 21:06:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-15 21:06:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-15 21:06:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-15 21:06:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:06:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-15 21:06:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-15 21:06:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-15 21:06:01,106 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-15 21:06:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:06:01,106 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:06:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:06:01,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:06:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-15 21:06:01,109 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-15 21:06:01,714 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:06:01,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:06:12,313 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:06:12,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:06:12,333 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 21:06:12,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:12 BoogieIcfgContainer [2022-10-15 21:06:12,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:06:12,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:06:12,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:06:12,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:06:12,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:05:58" (1/3) ... [2022-10-15 21:06:12,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3686758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:12, skipping insertion in model container [2022-10-15 21:06:12,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:00" (2/3) ... [2022-10-15 21:06:12,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3686758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:12, skipping insertion in model container [2022-10-15 21:06:12,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:12" (3/3) ... [2022-10-15 21:06:12,351 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-10-15 21:06:12,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:06:12,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 124 error locations. [2022-10-15 21:06:12,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:06:12,506 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;@17da301a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:06:12,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-10-15 21:06:12,520 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) [2022-10-15 21:06:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:06:12,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:12,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:12,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:12,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:12,544 INFO L85 PathProgramCache]: Analyzing trace with hash -442246801, now seen corresponding path program 1 times [2022-10-15 21:06:12,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:12,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905074766] [2022-10-15 21:06:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:12,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:13,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:13,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905074766] [2022-10-15 21:06:13,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905074766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:13,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:13,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:13,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755117326] [2022-10-15 21:06:13,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:13,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:13,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:13,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:13,253 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) [2022-10-15 21:06:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:14,258 INFO L93 Difference]: Finished difference Result 2345 states and 3201 transitions. [2022-10-15 21:06:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:14,263 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 [2022-10-15 21:06:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:14,291 INFO L225 Difference]: With dead ends: 2345 [2022-10-15 21:06:14,291 INFO L226 Difference]: Without dead ends: 1374 [2022-10-15 21:06:14,306 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 [2022-10-15 21:06:14,312 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 614 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:14,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 2762 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 21:06:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-10-15 21:06:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1276. [2022-10-15 21:06:14,490 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) [2022-10-15 21:06:14,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1742 transitions. [2022-10-15 21:06:14,522 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1742 transitions. Word has length 12 [2022-10-15 21:06:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:14,525 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1742 transitions. [2022-10-15 21:06:14,525 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) [2022-10-15 21:06:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1742 transitions. [2022-10-15 21:06:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 21:06:14,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:14,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:06:14,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:14,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:14,532 INFO L85 PathProgramCache]: Analyzing trace with hash -655714814, now seen corresponding path program 1 times [2022-10-15 21:06:14,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:14,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686468576] [2022-10-15 21:06:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:14,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:14,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:14,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686468576] [2022-10-15 21:06:14,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686468576] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:14,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:14,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911118614] [2022-10-15 21:06:14,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:14,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:14,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:14,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:14,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:14,890 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) [2022-10-15 21:06:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:15,137 INFO L93 Difference]: Finished difference Result 3270 states and 4437 transitions. [2022-10-15 21:06:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:15,138 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 [2022-10-15 21:06:15,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:15,159 INFO L225 Difference]: With dead ends: 3270 [2022-10-15 21:06:15,159 INFO L226 Difference]: Without dead ends: 1997 [2022-10-15 21:06:15,168 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 [2022-10-15 21:06:15,171 INFO L413 NwaCegarLoop]: 2022 mSDtfsCounter, 1140 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:15,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 2993 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:06:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-10-15 21:06:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1915. [2022-10-15 21:06:15,356 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) [2022-10-15 21:06:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2692 transitions. [2022-10-15 21:06:15,391 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2692 transitions. Word has length 13 [2022-10-15 21:06:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:15,392 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 2692 transitions. [2022-10-15 21:06:15,392 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) [2022-10-15 21:06:15,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2692 transitions. [2022-10-15 21:06:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 21:06:15,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:15,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:15,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:06:15,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:15,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1029085316, now seen corresponding path program 1 times [2022-10-15 21:06:15,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:15,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888990928] [2022-10-15 21:06:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:15,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:15,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:15,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888990928] [2022-10-15 21:06:15,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888990928] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:15,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:15,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:15,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120105706] [2022-10-15 21:06:15,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:15,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:15,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:15,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:15,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:15,760 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) [2022-10-15 21:06:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:16,110 INFO L93 Difference]: Finished difference Result 3867 states and 5443 transitions. [2022-10-15 21:06:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:16,111 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 [2022-10-15 21:06:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:16,131 INFO L225 Difference]: With dead ends: 3867 [2022-10-15 21:06:16,131 INFO L226 Difference]: Without dead ends: 1955 [2022-10-15 21:06:16,147 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 [2022-10-15 21:06:16,154 INFO L413 NwaCegarLoop]: 1192 mSDtfsCounter, 17 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:16,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2377 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:06:16,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2022-10-15 21:06:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1951. [2022-10-15 21:06:16,392 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) [2022-10-15 21:06:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2748 transitions. [2022-10-15 21:06:16,419 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2748 transitions. Word has length 16 [2022-10-15 21:06:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:16,420 INFO L495 AbstractCegarLoop]: Abstraction has 1951 states and 2748 transitions. [2022-10-15 21:06:16,420 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) [2022-10-15 21:06:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2748 transitions. [2022-10-15 21:06:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 21:06:16,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:16,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:16,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:06:16,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:16,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1029085280, now seen corresponding path program 1 times [2022-10-15 21:06:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:16,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955168855] [2022-10-15 21:06:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:16,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:16,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955168855] [2022-10-15 21:06:16,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955168855] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:16,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:16,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770012318] [2022-10-15 21:06:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:16,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:16,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:16,786 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) [2022-10-15 21:06:17,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:17,025 INFO L93 Difference]: Finished difference Result 4448 states and 6327 transitions. [2022-10-15 21:06:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:17,026 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 [2022-10-15 21:06:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:17,051 INFO L225 Difference]: With dead ends: 4448 [2022-10-15 21:06:17,051 INFO L226 Difference]: Without dead ends: 2500 [2022-10-15 21:06:17,067 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 [2022-10-15 21:06:17,071 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 [2022-10-15 21:06:17,073 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] [2022-10-15 21:06:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2022-10-15 21:06:17,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1973. [2022-10-15 21:06:17,230 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) [2022-10-15 21:06:17,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2774 transitions. [2022-10-15 21:06:17,256 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2774 transitions. Word has length 16 [2022-10-15 21:06:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:17,258 INFO L495 AbstractCegarLoop]: Abstraction has 1973 states and 2774 transitions. [2022-10-15 21:06:17,259 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) [2022-10-15 21:06:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2774 transitions. [2022-10-15 21:06:17,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 21:06:17,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:17,266 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:17,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:06:17,266 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:17,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:17,267 INFO L85 PathProgramCache]: Analyzing trace with hash 188380384, now seen corresponding path program 1 times [2022-10-15 21:06:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:17,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431268379] [2022-10-15 21:06:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:17,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:17,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:17,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:17,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431268379] [2022-10-15 21:06:17,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431268379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:17,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:17,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:17,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676949912] [2022-10-15 21:06:17,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:17,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:17,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:17,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:17,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:17,588 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) [2022-10-15 21:06:17,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:17,795 INFO L93 Difference]: Finished difference Result 1973 states and 2774 transitions. [2022-10-15 21:06:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:17,796 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 [2022-10-15 21:06:17,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:17,818 INFO L225 Difference]: With dead ends: 1973 [2022-10-15 21:06:17,818 INFO L226 Difference]: Without dead ends: 1972 [2022-10-15 21:06:17,821 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 [2022-10-15 21:06:17,826 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 [2022-10-15 21:06:17,827 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] [2022-10-15 21:06:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-10-15 21:06:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2022-10-15 21:06:17,992 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) [2022-10-15 21:06:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2770 transitions. [2022-10-15 21:06:18,013 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2770 transitions. Word has length 22 [2022-10-15 21:06:18,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:18,014 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2770 transitions. [2022-10-15 21:06:18,014 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) [2022-10-15 21:06:18,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2770 transitions. [2022-10-15 21:06:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 21:06:18,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:18,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:18,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:06:18,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1544826265, now seen corresponding path program 1 times [2022-10-15 21:06:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:18,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129980085] [2022-10-15 21:06:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:18,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:18,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129980085] [2022-10-15 21:06:18,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129980085] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:18,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724552009] [2022-10-15 21:06:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:18,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:18,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:18,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:18,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:06:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:18,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:18,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:19,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:19,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724552009] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:19,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:19,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:06:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14357925] [2022-10-15 21:06:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:19,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:19,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:19,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:19,042 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) [2022-10-15 21:06:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:19,583 INFO L93 Difference]: Finished difference Result 2040 states and 2860 transitions. [2022-10-15 21:06:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:19,585 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 [2022-10-15 21:06:19,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:19,608 INFO L225 Difference]: With dead ends: 2040 [2022-10-15 21:06:19,609 INFO L226 Difference]: Without dead ends: 2039 [2022-10-15 21:06:19,611 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 [2022-10-15 21:06:19,612 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 360 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:19,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2994 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:06:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-10-15 21:06:19,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1933. [2022-10-15 21:06:19,726 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) [2022-10-15 21:06:19,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2712 transitions. [2022-10-15 21:06:19,744 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2712 transitions. Word has length 23 [2022-10-15 21:06:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:19,745 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2712 transitions. [2022-10-15 21:06:19,745 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) [2022-10-15 21:06:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2712 transitions. [2022-10-15 21:06:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:06:19,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:19,747 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] [2022-10-15 21:06:19,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:19,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:06:19,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:19,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:19,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1320696779, now seen corresponding path program 1 times [2022-10-15 21:06:19,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:19,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881019819] [2022-10-15 21:06:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:19,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:20,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:20,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881019819] [2022-10-15 21:06:20,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881019819] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:20,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:20,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:20,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66470464] [2022-10-15 21:06:20,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:20,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:20,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:20,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:20,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:20,138 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) [2022-10-15 21:06:20,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:20,288 INFO L93 Difference]: Finished difference Result 3863 states and 5421 transitions. [2022-10-15 21:06:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:20,289 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 [2022-10-15 21:06:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:20,306 INFO L225 Difference]: With dead ends: 3863 [2022-10-15 21:06:20,306 INFO L226 Difference]: Without dead ends: 1933 [2022-10-15 21:06:20,322 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 [2022-10-15 21:06:20,324 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 [2022-10-15 21:06:20,325 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] [2022-10-15 21:06:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-10-15 21:06:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1933. [2022-10-15 21:06:20,457 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) [2022-10-15 21:06:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2710 transitions. [2022-10-15 21:06:20,475 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2710 transitions. Word has length 25 [2022-10-15 21:06:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:20,476 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2710 transitions. [2022-10-15 21:06:20,476 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) [2022-10-15 21:06:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2710 transitions. [2022-10-15 21:06:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:20,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:20,478 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] [2022-10-15 21:06:20,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:06:20,479 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1275079469, now seen corresponding path program 1 times [2022-10-15 21:06:20,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:20,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703873366] [2022-10-15 21:06:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:20,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:06:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:20,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:20,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703873366] [2022-10-15 21:06:20,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703873366] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:20,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776117746] [2022-10-15 21:06:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:20,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:20,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:20,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:20,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:06:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:21,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:21,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:21,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:21,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776117746] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:21,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:21,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-15 21:06:21,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290898381] [2022-10-15 21:06:21,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:21,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:06:21,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:06:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:21,459 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) [2022-10-15 21:06:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:23,265 INFO L93 Difference]: Finished difference Result 4152 states and 6076 transitions. [2022-10-15 21:06:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:06:23,266 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 [2022-10-15 21:06:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:23,306 INFO L225 Difference]: With dead ends: 4152 [2022-10-15 21:06:23,306 INFO L226 Difference]: Without dead ends: 4151 [2022-10-15 21:06:23,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:23,313 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 2327 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:23,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2553 Valid, 4363 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:06:23,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2022-10-15 21:06:23,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 2039. [2022-10-15 21:06:23,518 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) [2022-10-15 21:06:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2874 transitions. [2022-10-15 21:06:23,533 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2874 transitions. Word has length 30 [2022-10-15 21:06:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:23,534 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2874 transitions. [2022-10-15 21:06:23,534 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) [2022-10-15 21:06:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2874 transitions. [2022-10-15 21:06:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 21:06:23,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:23,536 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] [2022-10-15 21:06:23,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:23,749 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 [2022-10-15 21:06:23,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1685920499, now seen corresponding path program 1 times [2022-10-15 21:06:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964990906] [2022-10-15 21:06:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:06:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:06:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:25,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:25,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964990906] [2022-10-15 21:06:25,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964990906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:25,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:25,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:06:25,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754397285] [2022-10-15 21:06:25,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:25,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:06:25,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:06:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:06:25,180 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) [2022-10-15 21:06:32,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:34,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:36,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:38,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:40,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:41,066 INFO L93 Difference]: Finished difference Result 4095 states and 5772 transitions. [2022-10-15 21:06:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:06:41,067 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 [2022-10-15 21:06:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:41,083 INFO L225 Difference]: With dead ends: 4095 [2022-10-15 21:06:41,083 INFO L226 Difference]: Without dead ends: 2059 [2022-10-15 21:06:41,095 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 [2022-10-15 21:06:41,096 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 16 mSDsluCounter, 4503 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5689 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:41,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5689 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 265 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2022-10-15 21:06:41,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2022-10-15 21:06:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2057. [2022-10-15 21:06:41,241 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) [2022-10-15 21:06:41,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2898 transitions. [2022-10-15 21:06:41,255 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2898 transitions. Word has length 35 [2022-10-15 21:06:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:41,255 INFO L495 AbstractCegarLoop]: Abstraction has 2057 states and 2898 transitions. [2022-10-15 21:06:41,256 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) [2022-10-15 21:06:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2898 transitions. [2022-10-15 21:06:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:06:41,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:41,257 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] [2022-10-15 21:06:41,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:06:41,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:41,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash 512495679, now seen corresponding path program 1 times [2022-10-15 21:06:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:41,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154975998] [2022-10-15 21:06:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:41,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:06:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:06:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:41,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:41,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154975998] [2022-10-15 21:06:41,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154975998] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:41,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196061748] [2022-10-15 21:06:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:41,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:41,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:41,506 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) [2022-10-15 21:06:41,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:06:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:41,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:41,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:42,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:42,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196061748] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:42,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:42,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 21:06:42,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915927411] [2022-10-15 21:06:42,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:06:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:42,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:06:42,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:42,100 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) [2022-10-15 21:06:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:42,799 INFO L93 Difference]: Finished difference Result 4335 states and 6123 transitions. [2022-10-15 21:06:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:06:42,800 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 [2022-10-15 21:06:42,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:42,820 INFO L225 Difference]: With dead ends: 4335 [2022-10-15 21:06:42,821 INFO L226 Difference]: Without dead ends: 2299 [2022-10-15 21:06:42,832 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 [2022-10-15 21:06:42,833 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 108 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:42,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 4764 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:06:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2022-10-15 21:06:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2291. [2022-10-15 21:06:43,021 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) [2022-10-15 21:06:43,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3234 transitions. [2022-10-15 21:06:43,035 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3234 transitions. Word has length 39 [2022-10-15 21:06:43,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:43,036 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3234 transitions. [2022-10-15 21:06:43,036 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) [2022-10-15 21:06:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3234 transitions. [2022-10-15 21:06:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 21:06:43,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:43,038 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] [2022-10-15 21:06:43,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:43,251 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 [2022-10-15 21:06:43,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:06:43,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:43,253 INFO L85 PathProgramCache]: Analyzing trace with hash 996584207, now seen corresponding path program 1 times [2022-10-15 21:06:43,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:43,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035643044] [2022-10-15 21:06:43,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:06:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:06:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:45,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:45,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035643044] [2022-10-15 21:06:45,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035643044] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:45,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328449781] [2022-10-15 21:06:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:45,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:45,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:45,845 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) [2022-10-15 21:06:45,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:06:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:46,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-15 21:06:46,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:46,416 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 [2022-10-15 21:06:46,435 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 [2022-10-15 21:06:46,461 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 [2022-10-15 21:06:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:06:46,833 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 [2022-10-15 21:06:46,931 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 [2022-10-15 21:06:47,166 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 [2022-10-15 21:06:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:06:47,252 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 [2022-10-15 21:06:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:47,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:47,323 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 [2022-10-15 21:06:47,341 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 [2022-10-15 21:06:47,365 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 [2022-10-15 21:06:47,397 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 [2022-10-15 21:06:47,429 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 [2022-10-15 21:06:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-10-15 21:06:47,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328449781] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:47,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:47,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2022-10-15 21:06:47,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481578639] [2022-10-15 21:06:47,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:47,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 21:06:47,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 21:06:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=144, Unknown=5, NotChecked=140, Total=342 [2022-10-15 21:06:47,491 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)