/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-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:06:11,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:06:11,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:06:11,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:06:11,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:06:11,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:06:11,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:06:11,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:06:11,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:06:11,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:06:11,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:06:11,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:06:11,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:06:11,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:06:11,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:06:11,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:06:11,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:06:11,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:06:11,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:06:11,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:06:11,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:06:11,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:06:11,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:06:11,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:06:11,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:06:11,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:06:11,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:06:11,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:06:11,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:06:11,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:06:11,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:06:11,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:06:11,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:06:11,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:06:11,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:06:11,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:06:11,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:06:11,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:06:11,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:06:11,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:06:11,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:06:11,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:06:11,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:06:11,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:06:11,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:06:11,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:06:11,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:06:11,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:06:11,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:06:11,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:06:11,840 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:06:11,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:06:11,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:06:11,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:06:11,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:06:11,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:06:11,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:06:11,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:06:11,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:06:11,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:06:11,843 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:06:11,843 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:06:11,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:06:11,844 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:06:11,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:06:11,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:06:11,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:06:11,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:06:11,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:06:11,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:06:11,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:06:11,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:06:11,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:06:11,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:06:11,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:06:11,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:06:12,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:06:12,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:06:12,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:06:12,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:06:12,319 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:06:12,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2022-10-16 14:06:12,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6253cdb/8e7550734292444d8d17d9ded027e4d0/FLAGcbada435c [2022-10-16 14:06:13,454 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:06:13,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2022-10-16 14:06:13,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6253cdb/8e7550734292444d8d17d9ded027e4d0/FLAGcbada435c [2022-10-16 14:06:13,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6253cdb/8e7550734292444d8d17d9ded027e4d0 [2022-10-16 14:06:13,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:06:13,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:06:13,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:06:13,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:06:13,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:06:13,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:13" (1/1) ... [2022-10-16 14:06:13,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf59614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:13, skipping insertion in model container [2022-10-16 14:06:13,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:13" (1/1) ... [2022-10-16 14:06:14,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:06:14,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:06:14,819 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-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2022-10-16 14:06:15,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:06:15,176 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:06:15,343 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-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2022-10-16 14:06:15,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:06:15,636 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:06:15,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15 WrapperNode [2022-10-16 14:06:15,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:06:15,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:06:15,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:06:15,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:06:15,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,802 INFO L138 Inliner]: procedures = 96, calls = 1014, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1820 [2022-10-16 14:06:15,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:06:15,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:06:15,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:06:15,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:06:15,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:06:15,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:06:15,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:06:15,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:06:15,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (1/1) ... [2022-10-16 14:06:15,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:06:15,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:16,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:06:16,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:06:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:06:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:06:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:06:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2022-10-16 14:06:16,214 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2022-10-16 14:06:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2022-10-16 14:06:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2022-10-16 14:06:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 14:06:16,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 14:06:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:06:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-10-16 14:06:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-10-16 14:06:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-16 14:06:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-16 14:06:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-16 14:06:16,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-16 14:06:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:06:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-16 14:06:16,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-16 14:06:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2022-10-16 14:06:16,217 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2022-10-16 14:06:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:06:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 14:06:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 14:06:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 14:06:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2022-10-16 14:06:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2022-10-16 14:06:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 14:06:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 14:06:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-10-16 14:06:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-10-16 14:06:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-10-16 14:06:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-10-16 14:06:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2022-10-16 14:06:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2022-10-16 14:06:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 14:06:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 14:06:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2022-10-16 14:06:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2022-10-16 14:06:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2022-10-16 14:06:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2022-10-16 14:06:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 14:06:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 14:06:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:06:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2022-10-16 14:06:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2022-10-16 14:06:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:06:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 14:06:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 14:06:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2022-10-16 14:06:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2022-10-16 14:06:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:06:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:06:16,700 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:06:16,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:06:16,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 14:06:18,965 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:06:18,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:06:18,981 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:06:18,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:18 BoogieIcfgContainer [2022-10-16 14:06:18,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:06:18,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:06:18,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:06:18,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:06:18,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:06:13" (1/3) ... [2022-10-16 14:06:18,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bb6ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:18, skipping insertion in model container [2022-10-16 14:06:18,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:15" (2/3) ... [2022-10-16 14:06:18,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bb6ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:18, skipping insertion in model container [2022-10-16 14:06:18,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:18" (3/3) ... [2022-10-16 14:06:18,996 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2022-10-16 14:06:19,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:06:19,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 14:06:19,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:06:19,116 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;@4f31d50b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:06:19,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 14:06:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 402 states, 296 states have (on average 1.4493243243243243) internal successors, (429), 317 states have internal predecessors, (429), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-16 14:06:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:06:19,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:19,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:19,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash 248727836, now seen corresponding path program 1 times [2022-10-16 14:06:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:19,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275262012] [2022-10-16 14:06:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:06:20,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:20,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275262012] [2022-10-16 14:06:20,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275262012] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:20,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:20,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:06:20,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681250378] [2022-10-16 14:06:20,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:20,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:20,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:20,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:20,276 INFO L87 Difference]: Start difference. First operand has 402 states, 296 states have (on average 1.4493243243243243) internal successors, (429), 317 states have internal predecessors, (429), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 14:06:21,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:21,783 INFO L93 Difference]: Finished difference Result 1137 states and 1628 transitions. [2022-10-16 14:06:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:21,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2022-10-16 14:06:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:21,811 INFO L225 Difference]: With dead ends: 1137 [2022-10-16 14:06:21,812 INFO L226 Difference]: Without dead ends: 703 [2022-10-16 14:06:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:21,826 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 604 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:21,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1739 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 14:06:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2022-10-16 14:06:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 687. [2022-10-16 14:06:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 519 states have (on average 1.4315992292870905) internal successors, (743), 534 states have internal predecessors, (743), 119 states have call successors, (119), 35 states have call predecessors, (119), 35 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2022-10-16 14:06:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 981 transitions. [2022-10-16 14:06:21,983 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 981 transitions. Word has length 43 [2022-10-16 14:06:21,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:21,987 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 981 transitions. [2022-10-16 14:06:21,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 14:06:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 981 transitions. [2022-10-16 14:06:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 14:06:21,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:21,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:21,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:06:21,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash 294955510, now seen corresponding path program 1 times [2022-10-16 14:06:21,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:21,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430567955] [2022-10-16 14:06:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:06:22,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:22,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430567955] [2022-10-16 14:06:22,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430567955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:22,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:22,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:06:22,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497441003] [2022-10-16 14:06:22,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:22,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:22,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:22,425 INFO L87 Difference]: Start difference. First operand 687 states and 981 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 14:06:23,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:23,180 INFO L93 Difference]: Finished difference Result 1482 states and 2113 transitions. [2022-10-16 14:06:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:06:23,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-10-16 14:06:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:23,188 INFO L225 Difference]: With dead ends: 1482 [2022-10-16 14:06:23,188 INFO L226 Difference]: Without dead ends: 812 [2022-10-16 14:06:23,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:23,192 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 233 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:23,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1545 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:06:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-10-16 14:06:23,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 795. [2022-10-16 14:06:23,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 615 states have (on average 1.4341463414634146) internal successors, (882), 630 states have internal predecessors, (882), 125 states have call successors, (125), 41 states have call predecessors, (125), 41 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2022-10-16 14:06:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1132 transitions. [2022-10-16 14:06:23,255 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1132 transitions. Word has length 52 [2022-10-16 14:06:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:23,256 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1132 transitions. [2022-10-16 14:06:23,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 14:06:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1132 transitions. [2022-10-16 14:06:23,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 14:06:23,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:23,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:06:23,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:23,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash 248595729, now seen corresponding path program 1 times [2022-10-16 14:06:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:23,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792207846] [2022-10-16 14:06:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:06:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:23,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792207846] [2022-10-16 14:06:23,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792207846] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:23,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:23,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884962543] [2022-10-16 14:06:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:23,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:06:23,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:06:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:06:23,949 INFO L87 Difference]: Start difference. First operand 795 states and 1132 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 14:06:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:25,096 INFO L93 Difference]: Finished difference Result 2162 states and 3190 transitions. [2022-10-16 14:06:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:06:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 66 [2022-10-16 14:06:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:25,113 INFO L225 Difference]: With dead ends: 2162 [2022-10-16 14:06:25,113 INFO L226 Difference]: Without dead ends: 1395 [2022-10-16 14:06:25,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:06:25,131 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 971 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:25,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 2521 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:06:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-10-16 14:06:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 779. [2022-10-16 14:06:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 601 states have (on average 1.4359400998336107) internal successors, (863), 617 states have internal predecessors, (863), 124 states have call successors, (124), 40 states have call predecessors, (124), 40 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 14:06:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1111 transitions. [2022-10-16 14:06:25,229 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1111 transitions. Word has length 66 [2022-10-16 14:06:25,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:25,230 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1111 transitions. [2022-10-16 14:06:25,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 14:06:25,230 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1111 transitions. [2022-10-16 14:06:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:06:25,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:25,235 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:25,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:06:25,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:25,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1854761644, now seen corresponding path program 1 times [2022-10-16 14:06:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:25,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35808206] [2022-10-16 14:06:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:25,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:06:25,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:25,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35808206] [2022-10-16 14:06:25,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35808206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:25,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:25,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:06:25,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473562786] [2022-10-16 14:06:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:25,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:25,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:25,725 INFO L87 Difference]: Start difference. First operand 779 states and 1111 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 14:06:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:26,336 INFO L93 Difference]: Finished difference Result 1541 states and 2209 transitions. [2022-10-16 14:06:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:06:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 83 [2022-10-16 14:06:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:26,343 INFO L225 Difference]: With dead ends: 1541 [2022-10-16 14:06:26,344 INFO L226 Difference]: Without dead ends: 790 [2022-10-16 14:06:26,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:26,348 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 525 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:26,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1168 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:06:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-10-16 14:06:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 779. [2022-10-16 14:06:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 601 states have (on average 1.4093178036605658) internal successors, (847), 617 states have internal predecessors, (847), 124 states have call successors, (124), 40 states have call predecessors, (124), 40 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 14:06:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1095 transitions. [2022-10-16 14:06:26,447 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1095 transitions. Word has length 83 [2022-10-16 14:06:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:26,453 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1095 transitions. [2022-10-16 14:06:26,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 14:06:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1095 transitions. [2022-10-16 14:06:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:06:26,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:26,457 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:26,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:06:26,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:26,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:26,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1969020208, now seen corresponding path program 1 times [2022-10-16 14:06:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:26,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147582601] [2022-10-16 14:06:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:26,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:06:27,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:27,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147582601] [2022-10-16 14:06:27,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147582601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:27,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:27,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:06:27,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961764116] [2022-10-16 14:06:27,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:27,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:27,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:27,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:27,065 INFO L87 Difference]: Start difference. First operand 779 states and 1095 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 14:06:28,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:28,045 INFO L93 Difference]: Finished difference Result 1521 states and 2162 transitions. [2022-10-16 14:06:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:28,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 83 [2022-10-16 14:06:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:28,057 INFO L225 Difference]: With dead ends: 1521 [2022-10-16 14:06:28,057 INFO L226 Difference]: Without dead ends: 1517 [2022-10-16 14:06:28,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:28,059 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 567 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:28,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 1656 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:06:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-10-16 14:06:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1492. [2022-10-16 14:06:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1161 states have (on average 1.4117140396210164) internal successors, (1639), 1190 states have internal predecessors, (1639), 242 states have call successors, (242), 77 states have call predecessors, (242), 75 states have return successors, (242), 228 states have call predecessors, (242), 242 states have call successors, (242) [2022-10-16 14:06:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2123 transitions. [2022-10-16 14:06:28,203 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2123 transitions. Word has length 83 [2022-10-16 14:06:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:28,203 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 2123 transitions. [2022-10-16 14:06:28,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 14:06:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2123 transitions. [2022-10-16 14:06:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 14:06:28,206 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:28,207 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:28,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:06:28,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:28,208 INFO L85 PathProgramCache]: Analyzing trace with hash 993700015, now seen corresponding path program 1 times [2022-10-16 14:06:28,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:28,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674420904] [2022-10-16 14:06:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:06:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:06:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:06:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:28,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674420904] [2022-10-16 14:06:28,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674420904] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:28,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:28,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:06:28,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271596639] [2022-10-16 14:06:28,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:28,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:28,676 INFO L87 Difference]: Start difference. First operand 1492 states and 2123 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:29,735 INFO L93 Difference]: Finished difference Result 2985 states and 4266 transitions. [2022-10-16 14:06:29,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:29,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2022-10-16 14:06:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:29,756 INFO L225 Difference]: With dead ends: 2985 [2022-10-16 14:06:29,756 INFO L226 Difference]: Without dead ends: 2975 [2022-10-16 14:06:29,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:29,760 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 593 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:29,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1622 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:06:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2022-10-16 14:06:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2942. [2022-10-16 14:06:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2303 states have (on average 1.3986105080330005) internal successors, (3221), 2348 states have internal predecessors, (3221), 478 states have call successors, (478), 151 states have call predecessors, (478), 147 states have return successors, (478), 450 states have call predecessors, (478), 478 states have call successors, (478) [2022-10-16 14:06:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 4177 transitions. [2022-10-16 14:06:30,026 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 4177 transitions. Word has length 85 [2022-10-16 14:06:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:30,026 INFO L495 AbstractCegarLoop]: Abstraction has 2942 states and 4177 transitions. [2022-10-16 14:06:30,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 4177 transitions. [2022-10-16 14:06:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-16 14:06:30,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:30,031 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:30,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:06:30,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:30,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1660161076, now seen corresponding path program 1 times [2022-10-16 14:06:30,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:30,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773658962] [2022-10-16 14:06:30,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:06:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:06:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:06:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:06:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 14:06:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:30,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:30,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773658962] [2022-10-16 14:06:30,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773658962] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:30,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:30,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:06:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117081669] [2022-10-16 14:06:30,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:30,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:30,417 INFO L87 Difference]: Start difference. First operand 2942 states and 4177 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:06:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:31,546 INFO L93 Difference]: Finished difference Result 6521 states and 9309 transitions. [2022-10-16 14:06:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:31,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-10-16 14:06:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:31,572 INFO L225 Difference]: With dead ends: 6521 [2022-10-16 14:06:31,572 INFO L226 Difference]: Without dead ends: 3607 [2022-10-16 14:06:31,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:31,581 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 487 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:31,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 2516 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:06:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2022-10-16 14:06:31,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3558. [2022-10-16 14:06:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 2790 states have (on average 1.3906810035842294) internal successors, (3880), 2842 states have internal predecessors, (3880), 580 states have call successors, (580), 179 states have call predecessors, (580), 174 states have return successors, (580), 546 states have call predecessors, (580), 580 states have call successors, (580) [2022-10-16 14:06:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 5040 transitions. [2022-10-16 14:06:31,859 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 5040 transitions. Word has length 97 [2022-10-16 14:06:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:31,859 INFO L495 AbstractCegarLoop]: Abstraction has 3558 states and 5040 transitions. [2022-10-16 14:06:31,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:06:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 5040 transitions. [2022-10-16 14:06:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:06:31,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:31,864 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:31,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:06:31,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash 904130287, now seen corresponding path program 1 times [2022-10-16 14:06:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:31,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606210352] [2022-10-16 14:06:31,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:31,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:06:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:06:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:06:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:32,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606210352] [2022-10-16 14:06:32,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606210352] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:32,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:32,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:06:32,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963240] [2022-10-16 14:06:32,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:32,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:32,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:32,205 INFO L87 Difference]: Start difference. First operand 3558 states and 5040 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:06:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:33,469 INFO L93 Difference]: Finished difference Result 6451 states and 9189 transitions. [2022-10-16 14:06:33,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:33,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2022-10-16 14:06:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:33,499 INFO L225 Difference]: With dead ends: 6451 [2022-10-16 14:06:33,500 INFO L226 Difference]: Without dead ends: 4303 [2022-10-16 14:06:33,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:33,509 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 494 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:33,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 2581 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:06:33,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2022-10-16 14:06:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4254. [2022-10-16 14:06:33,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 3341 states have (on average 1.3909009278659084) internal successors, (4647), 3400 states have internal predecessors, (4647), 690 states have call successors, (690), 215 states have call predecessors, (690), 209 states have return successors, (690), 650 states have call predecessors, (690), 690 states have call successors, (690) [2022-10-16 14:06:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 6027 transitions. [2022-10-16 14:06:33,827 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 6027 transitions. Word has length 96 [2022-10-16 14:06:33,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:33,828 INFO L495 AbstractCegarLoop]: Abstraction has 4254 states and 6027 transitions. [2022-10-16 14:06:33,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:06:33,829 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 6027 transitions. [2022-10-16 14:06:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 14:06:33,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:33,834 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:33,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:06:33,834 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:33,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:33,835 INFO L85 PathProgramCache]: Analyzing trace with hash 681945170, now seen corresponding path program 1 times [2022-10-16 14:06:33,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:33,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632982448] [2022-10-16 14:06:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:33,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:06:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:06:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:06:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 14:06:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:34,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632982448] [2022-10-16 14:06:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632982448] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:06:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129892338] [2022-10-16 14:06:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:34,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:06:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:34,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:06:34,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:06:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:34,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:06:34,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:06:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 14:06:35,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:06:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:35,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129892338] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:06:35,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:06:35,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 14:06:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273344964] [2022-10-16 14:06:35,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:06:35,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:06:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:35,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:06:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:06:35,340 INFO L87 Difference]: Start difference. First operand 4254 states and 6027 transitions. Second operand has 9 states, 8 states have (on average 17.5) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2022-10-16 14:06:38,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:38,464 INFO L93 Difference]: Finished difference Result 11821 states and 16859 transitions. [2022-10-16 14:06:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:06:38,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 101 [2022-10-16 14:06:38,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:38,552 INFO L225 Difference]: With dead ends: 11821 [2022-10-16 14:06:38,553 INFO L226 Difference]: Without dead ends: 11816 [2022-10-16 14:06:38,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:06:38,560 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 3093 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:38,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 2739 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-16 14:06:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11816 states. [2022-10-16 14:06:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11816 to 8833. [2022-10-16 14:06:39,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 6961 states have (on average 1.3895991955178855) internal successors, (9673), 7063 states have internal predecessors, (9673), 1429 states have call successors, (1429), 443 states have call predecessors, (1429), 432 states have return successors, (1429), 1351 states have call predecessors, (1429), 1429 states have call successors, (1429) [2022-10-16 14:06:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 12531 transitions. [2022-10-16 14:06:39,529 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 12531 transitions. Word has length 101 [2022-10-16 14:06:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:39,529 INFO L495 AbstractCegarLoop]: Abstraction has 8833 states and 12531 transitions. [2022-10-16 14:06:39,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 7 states have internal predecessors, (140), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2022-10-16 14:06:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 12531 transitions. [2022-10-16 14:06:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:06:39,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:39,541 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:39,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:06:39,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:06:39,755 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:39,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:39,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1536669587, now seen corresponding path program 1 times [2022-10-16 14:06:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:39,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769517209] [2022-10-16 14:06:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:39,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:06:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:06:40,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:40,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769517209] [2022-10-16 14:06:40,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769517209] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:40,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:40,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101737670] [2022-10-16 14:06:40,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:40,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:06:40,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:40,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:06:40,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:06:40,307 INFO L87 Difference]: Start difference. First operand 8833 states and 12531 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:41,930 INFO L93 Difference]: Finished difference Result 22519 states and 32945 transitions. [2022-10-16 14:06:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:06:41,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-10-16 14:06:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:42,009 INFO L225 Difference]: With dead ends: 22519 [2022-10-16 14:06:42,009 INFO L226 Difference]: Without dead ends: 13714 [2022-10-16 14:06:42,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:42,040 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 393 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:42,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 2834 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:06:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13714 states. [2022-10-16 14:06:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13714 to 8872. [2022-10-16 14:06:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8872 states, 7000 states have (on average 1.383857142857143) internal successors, (9687), 7102 states have internal predecessors, (9687), 1429 states have call successors, (1429), 443 states have call predecessors, (1429), 432 states have return successors, (1429), 1351 states have call predecessors, (1429), 1429 states have call successors, (1429) [2022-10-16 14:06:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8872 states to 8872 states and 12545 transitions. [2022-10-16 14:06:42,918 INFO L78 Accepts]: Start accepts. Automaton has 8872 states and 12545 transitions. Word has length 102 [2022-10-16 14:06:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:42,919 INFO L495 AbstractCegarLoop]: Abstraction has 8872 states and 12545 transitions. [2022-10-16 14:06:42,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8872 states and 12545 transitions. [2022-10-16 14:06:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:06:42,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:42,925 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:42,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:06:42,926 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1143642577, now seen corresponding path program 1 times [2022-10-16 14:06:42,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:42,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166632754] [2022-10-16 14:06:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:06:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:06:43,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:43,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166632754] [2022-10-16 14:06:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166632754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:43,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:43,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991919162] [2022-10-16 14:06:43,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:43,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:06:43,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:06:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:43,740 INFO L87 Difference]: Start difference. First operand 8872 states and 12545 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:46,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:46,164 INFO L93 Difference]: Finished difference Result 13989 states and 19823 transitions. [2022-10-16 14:06:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 14:06:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-10-16 14:06:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:46,235 INFO L225 Difference]: With dead ends: 13989 [2022-10-16 14:06:46,236 INFO L226 Difference]: Without dead ends: 13987 [2022-10-16 14:06:46,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:06:46,245 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 1112 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:46,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 2368 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 14:06:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13987 states. [2022-10-16 14:06:47,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13987 to 13853. [2022-10-16 14:06:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13853 states, 10943 states have (on average 1.3817051996710226) internal successors, (15120), 11067 states have internal predecessors, (15120), 2223 states have call successors, (2223), 687 states have call predecessors, (2223), 676 states have return successors, (2223), 2137 states have call predecessors, (2223), 2223 states have call successors, (2223) [2022-10-16 14:06:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13853 states to 13853 states and 19566 transitions. [2022-10-16 14:06:47,538 INFO L78 Accepts]: Start accepts. Automaton has 13853 states and 19566 transitions. Word has length 102 [2022-10-16 14:06:47,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:47,538 INFO L495 AbstractCegarLoop]: Abstraction has 13853 states and 19566 transitions. [2022-10-16 14:06:47,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:47,539 INFO L276 IsEmpty]: Start isEmpty. Operand 13853 states and 19566 transitions. [2022-10-16 14:06:47,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:06:47,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:47,544 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:47,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:06:47,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:47,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash -334535282, now seen corresponding path program 1 times [2022-10-16 14:06:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:47,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755089788] [2022-10-16 14:06:47,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:47,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:06:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:06:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:06:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:06:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 14:06:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:06:47,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755089788] [2022-10-16 14:06:47,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755089788] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:06:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574647024] [2022-10-16 14:06:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:47,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:06:47,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:47,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:06:48,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:06:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:48,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:06:48,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:06:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 14:06:48,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:06:48,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574647024] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:48,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:06:48,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:06:48,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048594896] [2022-10-16 14:06:48,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:48,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:06:48,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:48,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:06:48,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:48,617 INFO L87 Difference]: Start difference. First operand 13853 states and 19566 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 14:06:50,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:50,129 INFO L93 Difference]: Finished difference Result 25769 states and 36408 transitions. [2022-10-16 14:06:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:06:50,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2022-10-16 14:06:50,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:50,256 INFO L225 Difference]: With dead ends: 25769 [2022-10-16 14:06:50,257 INFO L226 Difference]: Without dead ends: 25764 [2022-10-16 14:06:50,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:50,272 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 971 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:50,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1892 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:06:50,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25764 states. [2022-10-16 14:06:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25764 to 24260. [2022-10-16 14:06:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24260 states, 19185 states have (on average 1.379098253844149) internal successors, (26458), 19345 states have internal predecessors, (26458), 3874 states have call successors, (3874), 1201 states have call predecessors, (3874), 1190 states have return successors, (3874), 3781 states have call predecessors, (3874), 3874 states have call successors, (3874) [2022-10-16 14:06:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24260 states to 24260 states and 34206 transitions. [2022-10-16 14:06:52,510 INFO L78 Accepts]: Start accepts. Automaton has 24260 states and 34206 transitions. Word has length 102 [2022-10-16 14:06:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:52,511 INFO L495 AbstractCegarLoop]: Abstraction has 24260 states and 34206 transitions. [2022-10-16 14:06:52,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 14:06:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 24260 states and 34206 transitions. [2022-10-16 14:06:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 14:06:52,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:52,516 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:52,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:06:52,730 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,SelfDestructingSolverStorable11 [2022-10-16 14:06:52,730 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:52,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1093181621, now seen corresponding path program 1 times [2022-10-16 14:06:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:52,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035273877] [2022-10-16 14:06:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:06:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:06:53,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:53,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035273877] [2022-10-16 14:06:53,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035273877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:53,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:53,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75426315] [2022-10-16 14:06:53,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:53,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:06:53,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:06:53,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:53,621 INFO L87 Difference]: Start difference. First operand 24260 states and 34206 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:56,790 INFO L93 Difference]: Finished difference Result 32161 states and 45526 transitions. [2022-10-16 14:06:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 14:06:56,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-10-16 14:06:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:57,022 INFO L225 Difference]: With dead ends: 32161 [2022-10-16 14:06:57,022 INFO L226 Difference]: Without dead ends: 32159 [2022-10-16 14:06:57,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:06:57,034 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 1164 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:57,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 3002 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-16 14:06:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32159 states. [2022-10-16 14:06:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32159 to 31709. [2022-10-16 14:06:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31709 states, 25149 states have (on average 1.3804127400691877) internal successors, (34716), 25405 states have internal predecessors, (34716), 5000 states have call successors, (5000), 1571 states have call predecessors, (5000), 1549 states have return successors, (5000), 4822 states have call predecessors, (5000), 5000 states have call successors, (5000) [2022-10-16 14:06:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31709 states to 31709 states and 44716 transitions. [2022-10-16 14:06:59,129 INFO L78 Accepts]: Start accepts. Automaton has 31709 states and 44716 transitions. Word has length 103 [2022-10-16 14:06:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:59,129 INFO L495 AbstractCegarLoop]: Abstraction has 31709 states and 44716 transitions. [2022-10-16 14:06:59,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 14:06:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 31709 states and 44716 transitions. [2022-10-16 14:06:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 14:06:59,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:59,146 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:59,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:06:59,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:06:59,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1222881479, now seen corresponding path program 1 times [2022-10-16 14:06:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:59,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157785512] [2022-10-16 14:06:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:06:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:06:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:06:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:06:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:06:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 14:06:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 14:06:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 14:06:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:59,565 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-16 14:06:59,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:59,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157785512] [2022-10-16 14:06:59,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157785512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:59,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:59,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:06:59,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247956403] [2022-10-16 14:06:59,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:59,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:06:59,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:59,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:06:59,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:59,569 INFO L87 Difference]: Start difference. First operand 31709 states and 44716 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:07:02,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:02,335 INFO L93 Difference]: Finished difference Result 57584 states and 81903 transitions. [2022-10-16 14:07:02,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 14:07:02,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 118 [2022-10-16 14:07:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:02,478 INFO L225 Difference]: With dead ends: 57584 [2022-10-16 14:07:02,478 INFO L226 Difference]: Without dead ends: 25903 [2022-10-16 14:07:02,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:07:02,554 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 520 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:02,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1728 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:07:02,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25903 states. [2022-10-16 14:07:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25903 to 23593. [2022-10-16 14:07:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23593 states, 19450 states have (on average 1.34586118251928) internal successors, (26177), 19618 states have internal predecessors, (26177), 2982 states have call successors, (2982), 1184 states have call predecessors, (2982), 1150 states have return successors, (2982), 2855 states have call predecessors, (2982), 2982 states have call successors, (2982) [2022-10-16 14:07:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23593 states to 23593 states and 32141 transitions. [2022-10-16 14:07:04,404 INFO L78 Accepts]: Start accepts. Automaton has 23593 states and 32141 transitions. Word has length 118 [2022-10-16 14:07:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:04,405 INFO L495 AbstractCegarLoop]: Abstraction has 23593 states and 32141 transitions. [2022-10-16 14:07:04,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:07:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 23593 states and 32141 transitions. [2022-10-16 14:07:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:07:04,423 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:04,424 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:04,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:07:04,424 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:07:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash -150427409, now seen corresponding path program 1 times [2022-10-16 14:07:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998567215] [2022-10-16 14:07:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:04,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:07:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:07:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:07:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:07:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:07:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 14:07:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:05,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:05,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998567215] [2022-10-16 14:07:05,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998567215] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:05,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971275457] [2022-10-16 14:07:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:05,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:05,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:05,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:05,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:07:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:05,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2740 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:07:05,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:06,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:07:06,296 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:06,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971275457] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:07:06,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:07:06,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 11 [2022-10-16 14:07:06,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693601546] [2022-10-16 14:07:06,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:07:06,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:07:06,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:07:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:07:06,300 INFO L87 Difference]: Start difference. First operand 23593 states and 32141 transitions. Second operand has 12 states, 11 states have (on average 20.545454545454547) internal successors, (226), 9 states have internal predecessors, (226), 5 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-10-16 14:07:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:12,309 INFO L93 Difference]: Finished difference Result 56389 states and 77309 transitions. [2022-10-16 14:07:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 14:07:12,309 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 20.545454545454547) internal successors, (226), 9 states have internal predecessors, (226), 5 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 128 [2022-10-16 14:07:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:12,511 INFO L225 Difference]: With dead ends: 56389 [2022-10-16 14:07:12,511 INFO L226 Difference]: Without dead ends: 56387 [2022-10-16 14:07:12,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 272 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-10-16 14:07:12,537 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 5219 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 1744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5524 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:12,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5524 Valid, 3141 Invalid, 3703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1744 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 14:07:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56387 states. [2022-10-16 14:07:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56387 to 52725. [2022-10-16 14:07:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52725 states, 43791 states have (on average 1.3465552282432462) internal successors, (58967), 44098 states have internal predecessors, (58967), 6409 states have call successors, (6409), 2566 states have call predecessors, (6409), 2515 states have return successors, (6409), 6209 states have call predecessors, (6409), 6409 states have call successors, (6409) [2022-10-16 14:07:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52725 states to 52725 states and 71785 transitions. [2022-10-16 14:07:16,197 INFO L78 Accepts]: Start accepts. Automaton has 52725 states and 71785 transitions. Word has length 128 [2022-10-16 14:07:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:16,198 INFO L495 AbstractCegarLoop]: Abstraction has 52725 states and 71785 transitions. [2022-10-16 14:07:16,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 20.545454545454547) internal successors, (226), 9 states have internal predecessors, (226), 5 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-10-16 14:07:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 52725 states and 71785 transitions. [2022-10-16 14:07:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:07:16,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:16,214 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:16,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:16,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:16,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:07:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash -292975212, now seen corresponding path program 1 times [2022-10-16 14:07:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:16,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707471543] [2022-10-16 14:07:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:07:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:07:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:07:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:07:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:07:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 14:07:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:07:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:17,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:17,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707471543] [2022-10-16 14:07:17,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707471543] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:17,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522174168] [2022-10-16 14:07:17,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:17,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:17,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:17,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:17,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:07:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:18,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2729 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:07:18,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:18,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:07:18,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522174168] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:18,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:07:18,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2022-10-16 14:07:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492879846] [2022-10-16 14:07:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:18,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:07:18,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:18,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:07:18,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:07:18,319 INFO L87 Difference]: Start difference. First operand 52725 states and 71785 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 14:07:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:21,246 INFO L93 Difference]: Finished difference Result 52725 states and 71785 transitions. [2022-10-16 14:07:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:07:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 128 [2022-10-16 14:07:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:21,401 INFO L225 Difference]: With dead ends: 52725 [2022-10-16 14:07:21,401 INFO L226 Difference]: Without dead ends: 52724 [2022-10-16 14:07:21,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:07:21,426 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 492 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:21,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 516 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:07:21,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52724 states. [2022-10-16 14:07:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52724 to 52724. [2022-10-16 14:07:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52724 states, 43791 states have (on average 1.345002397752963) internal successors, (58899), 44097 states have internal predecessors, (58899), 6409 states have call successors, (6409), 2566 states have call predecessors, (6409), 2515 states have return successors, (6409), 6209 states have call predecessors, (6409), 6409 states have call successors, (6409) [2022-10-16 14:07:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52724 states to 52724 states and 71717 transitions. [2022-10-16 14:07:25,011 INFO L78 Accepts]: Start accepts. Automaton has 52724 states and 71717 transitions. Word has length 128 [2022-10-16 14:07:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:25,012 INFO L495 AbstractCegarLoop]: Abstraction has 52724 states and 71717 transitions. [2022-10-16 14:07:25,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 14:07:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 52724 states and 71717 transitions. [2022-10-16 14:07:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 14:07:25,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:25,030 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:25,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:25,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:07:25,244 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:07:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1478596187, now seen corresponding path program 1 times [2022-10-16 14:07:25,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:25,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743604480] [2022-10-16 14:07:25,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:25,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:07:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:07:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:07:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:07:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:07:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:07:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-10-16 14:07:25,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:25,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743604480] [2022-10-16 14:07:25,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743604480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:25,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:25,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:07:25,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411758808] [2022-10-16 14:07:25,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:25,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:07:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:25,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:07:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:07:25,823 INFO L87 Difference]: Start difference. First operand 52724 states and 71717 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:07:29,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:29,545 INFO L93 Difference]: Finished difference Result 99546 states and 135519 transitions. [2022-10-16 14:07:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:07:29,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 129 [2022-10-16 14:07:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:29,677 INFO L225 Difference]: With dead ends: 99546 [2022-10-16 14:07:29,677 INFO L226 Difference]: Without dead ends: 51230 [2022-10-16 14:07:29,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:29,909 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 484 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:29,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 2552 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:07:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51230 states. [2022-10-16 14:07:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51230 to 50833. [2022-10-16 14:07:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50833 states, 42244 states have (on average 1.335148186724742) internal successors, (56402), 42545 states have internal predecessors, (56402), 6160 states have call successors, (6160), 2471 states have call predecessors, (6160), 2420 states have return successors, (6160), 5960 states have call predecessors, (6160), 6160 states have call successors, (6160) [2022-10-16 14:07:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50833 states to 50833 states and 68722 transitions. [2022-10-16 14:07:33,315 INFO L78 Accepts]: Start accepts. Automaton has 50833 states and 68722 transitions. Word has length 129 [2022-10-16 14:07:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:33,315 INFO L495 AbstractCegarLoop]: Abstraction has 50833 states and 68722 transitions. [2022-10-16 14:07:33,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:07:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 50833 states and 68722 transitions. [2022-10-16 14:07:33,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 14:07:33,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:33,512 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:33,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 14:07:33,512 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:07:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:33,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1820926327, now seen corresponding path program 1 times [2022-10-16 14:07:33,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:33,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365996022] [2022-10-16 14:07:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:33,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:07:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:07:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:07:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:07:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:07:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 14:07:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:07:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 14:07:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 14:07:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-16 14:07:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:34,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365996022] [2022-10-16 14:07:34,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365996022] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936847761] [2022-10-16 14:07:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:34,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:34,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:34,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:07:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:07:35,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:07:35,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:07:35,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936847761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:35,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:07:35,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2022-10-16 14:07:35,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979559692] [2022-10-16 14:07:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:35,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:07:35,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:07:35,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:07:35,059 INFO L87 Difference]: Start difference. First operand 50833 states and 68722 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:07:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:42,023 INFO L93 Difference]: Finished difference Result 158862 states and 217130 transitions. [2022-10-16 14:07:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:07:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 138 [2022-10-16 14:07:42,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:42,558 INFO L225 Difference]: With dead ends: 158862 [2022-10-16 14:07:42,558 INFO L226 Difference]: Without dead ends: 112762 [2022-10-16 14:07:42,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:07:42,637 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 787 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:42,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 3065 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:07:42,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112762 states. [2022-10-16 14:07:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112762 to 51553. [2022-10-16 14:07:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51553 states, 42820 states have (on average 1.3340028024287716) internal successors, (57122), 43121 states have internal predecessors, (57122), 6304 states have call successors, (6304), 2471 states have call predecessors, (6304), 2420 states have return successors, (6304), 6104 states have call predecessors, (6304), 6304 states have call successors, (6304) [2022-10-16 14:07:47,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51553 states to 51553 states and 69730 transitions. [2022-10-16 14:07:47,381 INFO L78 Accepts]: Start accepts. Automaton has 51553 states and 69730 transitions. Word has length 138 [2022-10-16 14:07:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:47,382 INFO L495 AbstractCegarLoop]: Abstraction has 51553 states and 69730 transitions. [2022-10-16 14:07:47,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:07:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 51553 states and 69730 transitions. [2022-10-16 14:07:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 14:07:47,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:47,405 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:47,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:47,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:07:47,606 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:07:47,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2046278827, now seen corresponding path program 1 times [2022-10-16 14:07:47,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:47,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927309971] [2022-10-16 14:07:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:47,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:07:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:07:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:07:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:07:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:07:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:07:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:07:48,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:48,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927309971] [2022-10-16 14:07:48,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927309971] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:48,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:48,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:48,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357989204] [2022-10-16 14:07:48,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:48,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:48,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:48,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:48,011 INFO L87 Difference]: Start difference. First operand 51553 states and 69730 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:07:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:55,254 INFO L93 Difference]: Finished difference Result 132324 states and 177773 transitions. [2022-10-16 14:07:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:07:55,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 135 [2022-10-16 14:07:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:55,636 INFO L225 Difference]: With dead ends: 132324 [2022-10-16 14:07:55,636 INFO L226 Difference]: Without dead ends: 85609 [2022-10-16 14:07:55,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:07:55,692 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 541 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:55,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 2930 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:07:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85609 states. [2022-10-16 14:08:00,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85609 to 51553. [2022-10-16 14:08:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51553 states, 42820 states have (on average 1.3340028024287716) internal successors, (57122), 43121 states have internal predecessors, (57122), 6304 states have call successors, (6304), 2471 states have call predecessors, (6304), 2420 states have return successors, (6304), 6104 states have call predecessors, (6304), 6304 states have call successors, (6304) [2022-10-16 14:08:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51553 states to 51553 states and 69730 transitions. [2022-10-16 14:08:00,326 INFO L78 Accepts]: Start accepts. Automaton has 51553 states and 69730 transitions. Word has length 135 [2022-10-16 14:08:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:00,327 INFO L495 AbstractCegarLoop]: Abstraction has 51553 states and 69730 transitions. [2022-10-16 14:08:00,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 14:08:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 51553 states and 69730 transitions. [2022-10-16 14:08:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 14:08:00,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:00,337 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:00,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 14:08:00,338 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:08:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1294610013, now seen corresponding path program 1 times [2022-10-16 14:08:00,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:00,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690942586] [2022-10-16 14:08:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:08:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:08:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 14:08:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:08:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 14:08:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 14:08:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:08:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 14:08:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-16 14:08:01,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:01,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690942586] [2022-10-16 14:08:01,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690942586] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:08:01,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394838247] [2022-10-16 14:08:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:01,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:08:01,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:08:01,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:08:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:01,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:08:01,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:08:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:08:01,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:08:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-16 14:08:02,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394838247] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:08:02,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:08:02,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 5] total 14 [2022-10-16 14:08:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444180461] [2022-10-16 14:08:02,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:08:02,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:08:02,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:08:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:08:02,498 INFO L87 Difference]: Start difference. First operand 51553 states and 69730 transitions. Second operand has 15 states, 14 states have (on average 18.5) internal successors, (259), 12 states have internal predecessors, (259), 5 states have call successors, (35), 10 states have call predecessors, (35), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2022-10-16 14:08:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:18,291 INFO L93 Difference]: Finished difference Result 153278 states and 207719 transitions. [2022-10-16 14:08:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 14:08:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 18.5) internal successors, (259), 12 states have internal predecessors, (259), 5 states have call successors, (35), 10 states have call predecessors, (35), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 144 [2022-10-16 14:08:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:18,773 INFO L225 Difference]: With dead ends: 153278 [2022-10-16 14:08:18,773 INFO L226 Difference]: Without dead ends: 153277 [2022-10-16 14:08:18,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=509, Invalid=1213, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:08:18,813 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 5167 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 3007 mSolverCounterSat, 2104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 3914 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2104 IncrementalHoareTripleChecker+Valid, 3007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:18,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 3914 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2104 Valid, 3007 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-16 14:08:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153277 states. [2022-10-16 14:08:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153277 to 113996. [2022-10-16 14:08:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113996 states, 94757 states have (on average 1.3353525333220764) internal successors, (126534), 95258 states have internal predecessors, (126534), 13824 states have call successors, (13824), 5456 states have call predecessors, (13824), 5406 states have return successors, (13824), 13591 states have call predecessors, (13824), 13824 states have call successors, (13824) [2022-10-16 14:08:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113996 states to 113996 states and 154182 transitions. [2022-10-16 14:08:29,829 INFO L78 Accepts]: Start accepts. Automaton has 113996 states and 154182 transitions. Word has length 144 [2022-10-16 14:08:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:29,830 INFO L495 AbstractCegarLoop]: Abstraction has 113996 states and 154182 transitions. [2022-10-16 14:08:29,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 18.5) internal successors, (259), 12 states have internal predecessors, (259), 5 states have call successors, (35), 10 states have call predecessors, (35), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2022-10-16 14:08:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 113996 states and 154182 transitions. [2022-10-16 14:08:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-16 14:08:29,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:29,847 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:29,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:08:30,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:30,048 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:08:30,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:30,049 INFO L85 PathProgramCache]: Analyzing trace with hash -624143975, now seen corresponding path program 1 times [2022-10-16 14:08:30,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:30,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724070263] [2022-10-16 14:08:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:08:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:08:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:08:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:08:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:08:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:08:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:08:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 14:08:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:08:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 14:08:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 14:08:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-16 14:08:30,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:30,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724070263] [2022-10-16 14:08:30,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724070263] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:30,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:30,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:08:30,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529293755] [2022-10-16 14:08:30,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:30,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:08:30,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:08:30,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:08:30,459 INFO L87 Difference]: Start difference. First operand 113996 states and 154182 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 14:08:41,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:41,425 INFO L93 Difference]: Finished difference Result 219925 states and 298336 transitions. [2022-10-16 14:08:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:08:41,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 165 [2022-10-16 14:08:41,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:41,837 INFO L225 Difference]: With dead ends: 219925 [2022-10-16 14:08:41,838 INFO L226 Difference]: Without dead ends: 105357 [2022-10-16 14:08:41,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:41,963 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 487 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:41,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1286 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:08:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105357 states. [2022-10-16 14:08:50,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105357 to 100514. [2022-10-16 14:08:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100514 states, 83466 states have (on average 1.3288884096518343) internal successors, (110917), 83904 states have internal predecessors, (110917), 12225 states have call successors, (12225), 4864 states have call predecessors, (12225), 4814 states have return successors, (12225), 12055 states have call predecessors, (12225), 12225 states have call successors, (12225) [2022-10-16 14:08:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100514 states to 100514 states and 135367 transitions. [2022-10-16 14:08:51,543 INFO L78 Accepts]: Start accepts. Automaton has 100514 states and 135367 transitions. Word has length 165 [2022-10-16 14:08:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:51,544 INFO L495 AbstractCegarLoop]: Abstraction has 100514 states and 135367 transitions. [2022-10-16 14:08:51,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 14:08:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 100514 states and 135367 transitions. [2022-10-16 14:08:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-16 14:08:51,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:51,559 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:51,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 14:08:51,560 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:08:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2005950269, now seen corresponding path program 1 times [2022-10-16 14:08:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:51,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032173982] [2022-10-16 14:08:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:51,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:08:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:08:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:08:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:08:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:08:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:08:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 14:08:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 14:08:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 14:08:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 14:08:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:08:52,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:52,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032173982] [2022-10-16 14:08:52,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032173982] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:08:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2292605] [2022-10-16 14:08:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:52,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:52,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:08:52,227 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:08:52,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:08:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:52,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:08:52,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:08:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-16 14:08:53,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:08:53,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2292605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:53,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:08:53,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-10-16 14:08:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853593743] [2022-10-16 14:08:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:53,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:08:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:08:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:08:53,408 INFO L87 Difference]: Start difference. First operand 100514 states and 135367 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 14:09:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:11,684 INFO L93 Difference]: Finished difference Result 326822 states and 448482 transitions. [2022-10-16 14:09:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:09:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 168 [2022-10-16 14:09:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:12,662 INFO L225 Difference]: With dead ends: 326822 [2022-10-16 14:09:12,662 INFO L226 Difference]: Without dead ends: 226410 [2022-10-16 14:09:12,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:09:12,811 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 657 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 5592 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:12,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 5592 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:09:12,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226410 states. [2022-10-16 14:09:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226410 to 100169. [2022-10-16 14:09:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100169 states, 83121 states have (on average 1.3265239831089617) internal successors, (110262), 83674 states have internal predecessors, (110262), 12225 states have call successors, (12225), 4864 states have call predecessors, (12225), 4814 states have return successors, (12225), 11940 states have call predecessors, (12225), 12225 states have call successors, (12225) [2022-10-16 14:09:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100169 states to 100169 states and 134712 transitions. [2022-10-16 14:09:24,425 INFO L78 Accepts]: Start accepts. Automaton has 100169 states and 134712 transitions. Word has length 168 [2022-10-16 14:09:24,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:24,426 INFO L495 AbstractCegarLoop]: Abstraction has 100169 states and 134712 transitions. [2022-10-16 14:09:24,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 14:09:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 100169 states and 134712 transitions. [2022-10-16 14:09:24,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-16 14:09:24,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:24,442 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:24,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 14:09:24,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:09:24,643 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:09:24,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:24,646 INFO L85 PathProgramCache]: Analyzing trace with hash 218993457, now seen corresponding path program 1 times [2022-10-16 14:09:24,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:24,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045590812] [2022-10-16 14:09:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:24,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:09:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:09:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:09:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:09:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 14:09:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 14:09:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 14:09:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 14:09:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 14:09:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-16 14:09:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 14:09:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 14:09:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:09:25,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:25,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045590812] [2022-10-16 14:09:25,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045590812] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:09:25,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213114319] [2022-10-16 14:09:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:25,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:09:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:09:25,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:09:25,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:09:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:26,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 2941 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:09:26,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:09:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-16 14:09:26,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:09:26,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213114319] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:26,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:09:26,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-10-16 14:09:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038904623] [2022-10-16 14:09:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:26,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:09:26,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:26,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:09:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:09:26,425 INFO L87 Difference]: Start difference. First operand 100169 states and 134712 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13)