/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:05:15,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:05:15,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:05:15,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:05:15,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:05:15,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:05:15,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:05:15,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:05:15,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:05:15,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:05:15,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:05:15,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:05:15,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:05:15,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:05:15,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:05:15,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:05:15,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:05:15,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:05:15,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:05:15,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:05:15,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:05:15,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:05:15,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:05:15,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:05:15,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:05:15,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:05:15,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:05:15,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:05:15,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:05:15,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:05:15,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:05:15,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:05:15,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:05:15,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:05:15,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:05:15,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:05:15,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:05:15,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:05:15,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:05:15,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:05:15,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:05:15,097 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 13:05:15,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:05:15,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:05:15,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:05:15,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:05:15,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:05:15,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:05:15,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:05:15,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:05:15,153 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:05:15,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:05:15,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:05:15,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:05:15,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:05:15,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:05:15,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:05:15,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:05:15,156 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:05:15,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:05:15,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:05:15,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:05:15,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:05:15,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:05:15,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:05:15,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:05:15,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:05:15,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:05:15,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:05:15,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:05:15,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:05:15,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:05:15,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:05:15,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:05:15,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:05:15,612 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:05:15,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-16 13:05:15,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a245219/701bc5b727884a6a9315cc614648f0db/FLAGd2179e9d3 [2022-10-16 13:05:16,590 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:05:16,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-16 13:05:16,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a245219/701bc5b727884a6a9315cc614648f0db/FLAGd2179e9d3 [2022-10-16 13:05:16,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a245219/701bc5b727884a6a9315cc614648f0db [2022-10-16 13:05:16,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:05:16,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:05:16,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:05:16,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:05:16,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:05:16,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:05:16" (1/1) ... [2022-10-16 13:05:16,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179acc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:16, skipping insertion in model container [2022-10-16 13:05:16,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:05:16" (1/1) ... [2022-10-16 13:05:16,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:05:16,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:05:17,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i[94831,94844] [2022-10-16 13:05:17,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:05:17,499 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:05:17,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i[94831,94844] [2022-10-16 13:05:17,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:05:17,712 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:05:17,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17 WrapperNode [2022-10-16 13:05:17,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:05:17,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:05:17,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:05:17,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:05:17,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,906 INFO L138 Inliner]: procedures = 69, calls = 242, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 574 [2022-10-16 13:05:17,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:05:17,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:05:17,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:05:17,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:05:17,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:17,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:18,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:18,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:18,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:18,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:05:18,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:05:18,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:05:18,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:05:18,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (1/1) ... [2022-10-16 13:05:18,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:05:18,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:18,070 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 13:05:18,088 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 13:05:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:05:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:05:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:05:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:05:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:05:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:05:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:05:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:05:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:05:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:05:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2022-10-16 13:05:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2022-10-16 13:05:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2022-10-16 13:05:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2022-10-16 13:05:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:05:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:05:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-10-16 13:05:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-10-16 13:05:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-16 13:05:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-16 13:05:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:05:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:05:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:05:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:05:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-16 13:05:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-16 13:05:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:05:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:05:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:05:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:05:18,435 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:05:18,437 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:05:18,512 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-16 13:05:18,538 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:05:19,138 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:05:19,155 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:05:19,155 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:05:19,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:05:19 BoogieIcfgContainer [2022-10-16 13:05:19,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:05:19,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:05:19,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:05:19,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:05:19,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:05:16" (1/3) ... [2022-10-16 13:05:19,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:05:19, skipping insertion in model container [2022-10-16 13:05:19,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:17" (2/3) ... [2022-10-16 13:05:19,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:05:19, skipping insertion in model container [2022-10-16 13:05:19,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:05:19" (3/3) ... [2022-10-16 13:05:19,172 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-16 13:05:19,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:05:19,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 13:05:19,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:05:19,268 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;@5b03fba0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:05:19,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 13:05:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 133 states have internal predecessors, (165), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 13:05:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 13:05:19,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:19,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:19,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash 770285944, now seen corresponding path program 1 times [2022-10-16 13:05:19,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:19,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544849632] [2022-10-16 13:05:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:19,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:05:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:05:19,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:19,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544849632] [2022-10-16 13:05:19,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544849632] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:19,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:19,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:05:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628557145] [2022-10-16 13:05:19,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:19,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:19,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:19,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:19,997 INFO L87 Difference]: Start difference. First operand has 154 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 133 states have internal predecessors, (165), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:05:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:20,455 INFO L93 Difference]: Finished difference Result 352 states and 475 transitions. [2022-10-16 13:05:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:05:20,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-10-16 13:05:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:20,483 INFO L225 Difference]: With dead ends: 352 [2022-10-16 13:05:20,483 INFO L226 Difference]: Without dead ends: 156 [2022-10-16 13:05:20,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 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 13:05:20,506 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 112 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:20,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 598 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:05:20,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-16 13:05:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2022-10-16 13:05:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 119 states have (on average 1.3865546218487395) internal successors, (165), 128 states have internal predecessors, (165), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 13:05:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 191 transitions. [2022-10-16 13:05:20,608 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 191 transitions. Word has length 23 [2022-10-16 13:05:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:20,609 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 191 transitions. [2022-10-16 13:05:20,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:05:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 191 transitions. [2022-10-16 13:05:20,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 13:05:20,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:20,613 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:20,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:05:20,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:20,614 INFO L85 PathProgramCache]: Analyzing trace with hash -462635243, now seen corresponding path program 1 times [2022-10-16 13:05:20,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:20,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173156790] [2022-10-16 13:05:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:20,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:05:20,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173156790] [2022-10-16 13:05:20,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173156790] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:20,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:20,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:05:20,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485029952] [2022-10-16 13:05:20,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:20,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:20,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:20,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:20,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:20,857 INFO L87 Difference]: Start difference. First operand 151 states and 191 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:05:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:21,117 INFO L93 Difference]: Finished difference Result 310 states and 400 transitions. [2022-10-16 13:05:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:05:21,118 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2022-10-16 13:05:21,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:21,121 INFO L225 Difference]: With dead ends: 310 [2022-10-16 13:05:21,121 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 13:05:21,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:05:21,124 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 152 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:21,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 469 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:05:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 13:05:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-10-16 13:05:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 138 states have (on average 1.391304347826087) internal successors, (192), 147 states have internal predecessors, (192), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-16 13:05:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 218 transitions. [2022-10-16 13:05:21,147 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 218 transitions. Word has length 42 [2022-10-16 13:05:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:21,148 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 218 transitions. [2022-10-16 13:05:21,148 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:05:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 218 transitions. [2022-10-16 13:05:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 13:05:21,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:21,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:21,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:05:21,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:21,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:21,151 INFO L85 PathProgramCache]: Analyzing trace with hash -664142540, now seen corresponding path program 1 times [2022-10-16 13:05:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:21,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192339491] [2022-10-16 13:05:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:21,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:21,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:21,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192339491] [2022-10-16 13:05:21,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192339491] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:21,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:21,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:05:21,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775401755] [2022-10-16 13:05:21,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:21,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:21,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:05:21,373 INFO L87 Difference]: Start difference. First operand 170 states and 218 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:21,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:21,568 INFO L93 Difference]: Finished difference Result 330 states and 425 transitions. [2022-10-16 13:05:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:05:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-10-16 13:05:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:21,572 INFO L225 Difference]: With dead ends: 330 [2022-10-16 13:05:21,572 INFO L226 Difference]: Without dead ends: 326 [2022-10-16 13:05:21,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:21,581 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:21,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:21,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-10-16 13:05:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 314. [2022-10-16 13:05:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 273 states have internal predecessors, (367), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 13:05:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 415 transitions. [2022-10-16 13:05:21,647 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 415 transitions. Word has length 42 [2022-10-16 13:05:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:21,648 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 415 transitions. [2022-10-16 13:05:21,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 415 transitions. [2022-10-16 13:05:21,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:05:21,653 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:21,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:05:21,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:21,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:21,660 INFO L85 PathProgramCache]: Analyzing trace with hash 984873632, now seen corresponding path program 1 times [2022-10-16 13:05:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:21,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372128368] [2022-10-16 13:05:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:21,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:21,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:21,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372128368] [2022-10-16 13:05:21,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372128368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:21,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:21,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:05:21,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749222199] [2022-10-16 13:05:21,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:21,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:21,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:21,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:21,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:21,884 INFO L87 Difference]: Start difference. First operand 314 states and 415 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:22,171 INFO L93 Difference]: Finished difference Result 834 states and 1097 transitions. [2022-10-16 13:05:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:05:22,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-10-16 13:05:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:22,177 INFO L225 Difference]: With dead ends: 834 [2022-10-16 13:05:22,177 INFO L226 Difference]: Without dead ends: 536 [2022-10-16 13:05:22,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:05:22,180 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 179 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:22,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 804 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:05:22,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-10-16 13:05:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 318. [2022-10-16 13:05:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 268 states have (on average 1.3843283582089552) internal successors, (371), 277 states have internal predecessors, (371), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 13:05:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 419 transitions. [2022-10-16 13:05:22,221 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 419 transitions. Word has length 49 [2022-10-16 13:05:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:22,222 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 419 transitions. [2022-10-16 13:05:22,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 419 transitions. [2022-10-16 13:05:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 13:05:22,224 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:22,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:22,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:05:22,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1370308291, now seen corresponding path program 1 times [2022-10-16 13:05:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:22,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835003793] [2022-10-16 13:05:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:22,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:22,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835003793] [2022-10-16 13:05:22,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835003793] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:22,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:22,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:05:22,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211081541] [2022-10-16 13:05:22,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:22,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:22,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:22,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:22,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:05:22,409 INFO L87 Difference]: Start difference. First operand 318 states and 419 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:22,595 INFO L93 Difference]: Finished difference Result 522 states and 719 transitions. [2022-10-16 13:05:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:05:22,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-10-16 13:05:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:22,600 INFO L225 Difference]: With dead ends: 522 [2022-10-16 13:05:22,600 INFO L226 Difference]: Without dead ends: 520 [2022-10-16 13:05:22,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:05:22,602 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 91 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:22,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 466 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-10-16 13:05:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 332. [2022-10-16 13:05:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 282 states have (on average 1.3865248226950355) internal successors, (391), 291 states have internal predecessors, (391), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 13:05:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 439 transitions. [2022-10-16 13:05:22,641 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 439 transitions. Word has length 52 [2022-10-16 13:05:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:22,641 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 439 transitions. [2022-10-16 13:05:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 439 transitions. [2022-10-16 13:05:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:05:22,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:22,645 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:05:22,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:05:22,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:22,646 INFO L85 PathProgramCache]: Analyzing trace with hash -614072209, now seen corresponding path program 1 times [2022-10-16 13:05:22,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:22,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053531634] [2022-10-16 13:05:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:22,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:22,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:22,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:22,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053531634] [2022-10-16 13:05:22,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053531634] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:22,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766209986] [2022-10-16 13:05:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:22,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:22,912 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 13:05:22,935 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 13:05:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:23,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:23,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:23,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:23,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766209986] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:23,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:23,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:05:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062839260] [2022-10-16 13:05:23,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:23,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:05:23,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:23,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:05:23,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:05:23,302 INFO L87 Difference]: Start difference. First operand 332 states and 439 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:23,715 INFO L93 Difference]: Finished difference Result 1107 states and 1593 transitions. [2022-10-16 13:05:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:05:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-10-16 13:05:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:23,724 INFO L225 Difference]: With dead ends: 1107 [2022-10-16 13:05:23,724 INFO L226 Difference]: Without dead ends: 1106 [2022-10-16 13:05:23,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:05:23,726 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 361 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:23,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1041 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:05:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-10-16 13:05:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 372. [2022-10-16 13:05:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 322 states have (on average 1.406832298136646) internal successors, (453), 331 states have internal predecessors, (453), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 13:05:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 501 transitions. [2022-10-16 13:05:23,779 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 501 transitions. Word has length 59 [2022-10-16 13:05:23,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:23,780 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 501 transitions. [2022-10-16 13:05:23,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 501 transitions. [2022-10-16 13:05:23,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:05:23,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:23,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:23,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:23,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 13:05:23,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1856369125, now seen corresponding path program 1 times [2022-10-16 13:05:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:23,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464938489] [2022-10-16 13:05:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:23,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:24,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:24,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:24,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464938489] [2022-10-16 13:05:24,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464938489] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:24,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42695711] [2022-10-16 13:05:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:24,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:24,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:24,274 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 13:05:24,275 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 13:05:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:24,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:24,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:24,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:05:24,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42695711] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:24,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:05:24,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:05:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358033773] [2022-10-16 13:05:24,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:24,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:05:24,563 INFO L87 Difference]: Start difference. First operand 372 states and 501 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:24,673 INFO L93 Difference]: Finished difference Result 627 states and 868 transitions. [2022-10-16 13:05:24,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:05:24,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2022-10-16 13:05:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:24,678 INFO L225 Difference]: With dead ends: 627 [2022-10-16 13:05:24,678 INFO L226 Difference]: Without dead ends: 626 [2022-10-16 13:05:24,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:05:24,680 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 153 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:24,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 465 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-10-16 13:05:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 371. [2022-10-16 13:05:24,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 322 states have (on average 1.3881987577639752) internal successors, (447), 330 states have internal predecessors, (447), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 13:05:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 495 transitions. [2022-10-16 13:05:24,722 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 495 transitions. Word has length 60 [2022-10-16 13:05:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:24,723 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 495 transitions. [2022-10-16 13:05:24,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 495 transitions. [2022-10-16 13:05:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 13:05:24,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:24,725 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 13:05:24,760 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 13:05:24,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-10-16 13:05:24,940 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:24,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:24,941 INFO L85 PathProgramCache]: Analyzing trace with hash -279528431, now seen corresponding path program 1 times [2022-10-16 13:05:24,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:24,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139310296] [2022-10-16 13:05:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:25,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:25,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139310296] [2022-10-16 13:05:25,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139310296] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:25,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766883446] [2022-10-16 13:05:25,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:25,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:25,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:25,182 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 13:05:25,186 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 13:05:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:25,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:25,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:25,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:25,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766883446] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:25,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:25,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2, 3] total 7 [2022-10-16 13:05:25,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553047609] [2022-10-16 13:05:25,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:25,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:05:25,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:25,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:05:25,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:05:25,597 INFO L87 Difference]: Start difference. First operand 371 states and 495 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:05:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:26,161 INFO L93 Difference]: Finished difference Result 922 states and 1226 transitions. [2022-10-16 13:05:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:05:26,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2022-10-16 13:05:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:26,167 INFO L225 Difference]: With dead ends: 922 [2022-10-16 13:05:26,167 INFO L226 Difference]: Without dead ends: 920 [2022-10-16 13:05:26,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:05:26,169 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 909 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:26,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 745 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:05:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-10-16 13:05:26,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 888. [2022-10-16 13:05:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 785 states have (on average 1.3936305732484076) internal successors, (1094), 793 states have internal predecessors, (1094), 57 states have call successors, (57), 37 states have call predecessors, (57), 37 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-16 13:05:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1208 transitions. [2022-10-16 13:05:26,257 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1208 transitions. Word has length 64 [2022-10-16 13:05:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:26,257 INFO L495 AbstractCegarLoop]: Abstraction has 888 states and 1208 transitions. [2022-10-16 13:05:26,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:05:26,258 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1208 transitions. [2022-10-16 13:05:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 13:05:26,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:26,259 INFO L195 NwaCegarLoop]: trace histogram [3, 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 13:05:26,298 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 13:05:26,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:26,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -75446634, now seen corresponding path program 1 times [2022-10-16 13:05:26,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:26,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124517244] [2022-10-16 13:05:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:26,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:26,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:26,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124517244] [2022-10-16 13:05:26,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124517244] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:26,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519359720] [2022-10-16 13:05:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:26,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:26,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:26,674 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 13:05:26,692 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 13:05:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:26,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:26,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:26,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:05:26,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519359720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:26,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:05:26,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 13:05:26,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486778900] [2022-10-16 13:05:26,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:26,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:26,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:26,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:26,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:05:26,982 INFO L87 Difference]: Start difference. First operand 888 states and 1208 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:27,131 INFO L93 Difference]: Finished difference Result 893 states and 1208 transitions. [2022-10-16 13:05:27,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:05:27,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2022-10-16 13:05:27,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:27,137 INFO L225 Difference]: With dead ends: 893 [2022-10-16 13:05:27,137 INFO L226 Difference]: Without dead ends: 891 [2022-10-16 13:05:27,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:05:27,139 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 245 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:27,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 424 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2022-10-16 13:05:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 886. [2022-10-16 13:05:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 791 states have internal predecessors, (1088), 57 states have call successors, (57), 37 states have call predecessors, (57), 37 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-16 13:05:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1202 transitions. [2022-10-16 13:05:27,238 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1202 transitions. Word has length 65 [2022-10-16 13:05:27,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:27,239 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1202 transitions. [2022-10-16 13:05:27,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1202 transitions. [2022-10-16 13:05:27,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:05:27,241 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:27,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:27,278 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 13:05:27,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:27,455 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash -195849772, now seen corresponding path program 1 times [2022-10-16 13:05:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:27,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87665769] [2022-10-16 13:05:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:27,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:05:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:05:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:05:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:27,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87665769] [2022-10-16 13:05:27,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87665769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:27,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:27,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:05:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364432373] [2022-10-16 13:05:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:27,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:05:27,666 INFO L87 Difference]: Start difference. First operand 886 states and 1202 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:05:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:27,943 INFO L93 Difference]: Finished difference Result 1584 states and 2128 transitions. [2022-10-16 13:05:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:05:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2022-10-16 13:05:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:27,954 INFO L225 Difference]: With dead ends: 1584 [2022-10-16 13:05:27,954 INFO L226 Difference]: Without dead ends: 1582 [2022-10-16 13:05:27,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:27,956 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:27,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 383 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-10-16 13:05:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1557. [2022-10-16 13:05:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1376 states have (on average 1.367732558139535) internal successors, (1882), 1382 states have internal predecessors, (1882), 107 states have call successors, (107), 67 states have call predecessors, (107), 67 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2022-10-16 13:05:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2096 transitions. [2022-10-16 13:05:28,137 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2096 transitions. Word has length 71 [2022-10-16 13:05:28,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:28,138 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 2096 transitions. [2022-10-16 13:05:28,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:05:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2096 transitions. [2022-10-16 13:05:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 13:05:28,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:28,141 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 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] [2022-10-16 13:05:28,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 13:05:28,141 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1608379331, now seen corresponding path program 2 times [2022-10-16 13:05:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:28,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300939220] [2022-10-16 13:05:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:28,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:28,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300939220] [2022-10-16 13:05:28,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300939220] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791256248] [2022-10-16 13:05:28,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:05:28,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:28,436 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 13:05:28,439 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 13:05:28,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:05:28,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:05:28,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 13:05:28,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-16 13:05:28,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:05:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791256248] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:28,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:05:28,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2022-10-16 13:05:28,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420074636] [2022-10-16 13:05:28,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:28,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:05:28,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:05:28,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:05:28,837 INFO L87 Difference]: Start difference. First operand 1557 states and 2096 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:29,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:29,092 INFO L93 Difference]: Finished difference Result 2877 states and 3868 transitions. [2022-10-16 13:05:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:05:29,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2022-10-16 13:05:29,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:29,101 INFO L225 Difference]: With dead ends: 2877 [2022-10-16 13:05:29,101 INFO L226 Difference]: Without dead ends: 1349 [2022-10-16 13:05:29,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:05:29,105 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 180 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:29,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 831 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:05:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-10-16 13:05:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1314. [2022-10-16 13:05:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1160 states have (on average 1.361206896551724) internal successors, (1579), 1166 states have internal predecessors, (1579), 90 states have call successors, (90), 57 states have call predecessors, (90), 57 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-16 13:05:29,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1759 transitions. [2022-10-16 13:05:29,265 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1759 transitions. Word has length 80 [2022-10-16 13:05:29,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:29,265 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1759 transitions. [2022-10-16 13:05:29,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:05:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1759 transitions. [2022-10-16 13:05:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 13:05:29,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:29,267 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 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] [2022-10-16 13:05:29,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 13:05:29,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 13:05:29,482 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:29,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1912404527, now seen corresponding path program 1 times [2022-10-16 13:05:29,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:29,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118132423] [2022-10-16 13:05:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:29,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:29,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:29,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:05:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:29,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:29,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118132423] [2022-10-16 13:05:29,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118132423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:29,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132423111] [2022-10-16 13:05:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:29,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:29,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:29,780 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 13:05:29,789 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 13:05:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:30,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:05:30,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:30,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:30,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132423111] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:30,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:30,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:05:30,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786661163] [2022-10-16 13:05:30,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:30,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:05:30,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:30,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:05:30,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:05:30,143 INFO L87 Difference]: Start difference. First operand 1314 states and 1759 transitions. Second operand has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:05:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:31,273 INFO L93 Difference]: Finished difference Result 7391 states and 10787 transitions. [2022-10-16 13:05:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:05:31,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 87 [2022-10-16 13:05:31,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:31,321 INFO L225 Difference]: With dead ends: 7391 [2022-10-16 13:05:31,321 INFO L226 Difference]: Without dead ends: 7390 [2022-10-16 13:05:31,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:05:31,325 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1326 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:31,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1571 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:05:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7390 states. [2022-10-16 13:05:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7390 to 1650. [2022-10-16 13:05:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1496 states have (on average 1.3763368983957218) internal successors, (2059), 1502 states have internal predecessors, (2059), 90 states have call successors, (90), 57 states have call predecessors, (90), 57 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-16 13:05:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2239 transitions. [2022-10-16 13:05:31,606 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2239 transitions. Word has length 87 [2022-10-16 13:05:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:31,607 INFO L495 AbstractCegarLoop]: Abstraction has 1650 states and 2239 transitions. [2022-10-16 13:05:31,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:05:31,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2239 transitions. [2022-10-16 13:05:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 13:05:31,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:31,609 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 13:05:31,648 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 13:05:31,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:31,825 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash 183791844, now seen corresponding path program 1 times [2022-10-16 13:05:31,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:31,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940344211] [2022-10-16 13:05:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:31,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:05:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:05:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:05:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:05:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:05:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:32,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:32,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940344211] [2022-10-16 13:05:32,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940344211] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:32,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326095145] [2022-10-16 13:05:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:32,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:32,166 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 13:05:32,191 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 13:05:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:32,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:32,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 13:05:32,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:32,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326095145] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:32,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:32,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 13:05:32,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272770447] [2022-10-16 13:05:32,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:32,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:05:32,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:05:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:05:32,613 INFO L87 Difference]: Start difference. First operand 1650 states and 2239 transitions. Second operand has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2022-10-16 13:05:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:33,633 INFO L93 Difference]: Finished difference Result 4114 states and 5599 transitions. [2022-10-16 13:05:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:05:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 93 [2022-10-16 13:05:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:33,654 INFO L225 Difference]: With dead ends: 4114 [2022-10-16 13:05:33,654 INFO L226 Difference]: Without dead ends: 4112 [2022-10-16 13:05:33,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:05:33,657 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1148 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:33,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 777 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:05:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2022-10-16 13:05:34,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 3197. [2022-10-16 13:05:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 2908 states have (on average 1.376547455295736) internal successors, (4003), 2913 states have internal predecessors, (4003), 174 states have call successors, (174), 109 states have call predecessors, (174), 109 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2022-10-16 13:05:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4351 transitions. [2022-10-16 13:05:34,027 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4351 transitions. Word has length 93 [2022-10-16 13:05:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:34,028 INFO L495 AbstractCegarLoop]: Abstraction has 3197 states and 4351 transitions. [2022-10-16 13:05:34,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2022-10-16 13:05:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4351 transitions. [2022-10-16 13:05:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 13:05:34,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:34,030 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 13:05:34,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:34,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:34,246 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1402580120, now seen corresponding path program 1 times [2022-10-16 13:05:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:34,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35216683] [2022-10-16 13:05:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:34,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:05:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:05:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:05:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:05:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:05:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:34,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:34,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35216683] [2022-10-16 13:05:34,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35216683] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:34,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030817680] [2022-10-16 13:05:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:34,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:34,526 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 13:05:34,546 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 13:05:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:34,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:05:34,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 13:05:34,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:05:34,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030817680] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:34,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:05:34,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 13:05:34,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154646440] [2022-10-16 13:05:34,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:34,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:34,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:34,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:05:34,876 INFO L87 Difference]: Start difference. First operand 3197 states and 4351 transitions. Second operand has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 13:05:35,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:35,305 INFO L93 Difference]: Finished difference Result 3894 states and 5299 transitions. [2022-10-16 13:05:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:05:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2022-10-16 13:05:35,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:35,326 INFO L225 Difference]: With dead ends: 3894 [2022-10-16 13:05:35,327 INFO L226 Difference]: Without dead ends: 3892 [2022-10-16 13:05:35,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 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 13:05:35,330 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:35,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 399 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2022-10-16 13:05:35,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 2501. [2022-10-16 13:05:35,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2278 states have (on average 1.3726953467954346) internal successors, (3127), 2281 states have internal predecessors, (3127), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-16 13:05:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3395 transitions. [2022-10-16 13:05:35,739 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3395 transitions. Word has length 94 [2022-10-16 13:05:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:35,739 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3395 transitions. [2022-10-16 13:05:35,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 13:05:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3395 transitions. [2022-10-16 13:05:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 13:05:35,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:35,744 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 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] [2022-10-16 13:05:35,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:35,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 13:05:35,958 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:35,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash 713770961, now seen corresponding path program 2 times [2022-10-16 13:05:35,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:35,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009488657] [2022-10-16 13:05:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:05:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:36,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:36,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009488657] [2022-10-16 13:05:36,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009488657] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:36,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971109329] [2022-10-16 13:05:36,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:05:36,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:36,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:36,549 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:36,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:05:36,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:05:36,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:05:36,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 13:05:36,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-10-16 13:05:36,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:05:36,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971109329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:36,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:05:36,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 17 [2022-10-16 13:05:36,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965258546] [2022-10-16 13:05:36,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:36,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:05:36,926 INFO L87 Difference]: Start difference. First operand 2501 states and 3395 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:05:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:37,265 INFO L93 Difference]: Finished difference Result 4975 states and 6756 transitions. [2022-10-16 13:05:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:05:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 129 [2022-10-16 13:05:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:37,294 INFO L225 Difference]: With dead ends: 4975 [2022-10-16 13:05:37,294 INFO L226 Difference]: Without dead ends: 2501 [2022-10-16 13:05:37,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-10-16 13:05:37,306 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 54 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 501 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-10-16 13:05:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2022-10-16 13:05:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2278 states have (on average 1.3722563652326603) internal successors, (3126), 2281 states have internal predecessors, (3126), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-16 13:05:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3394 transitions. [2022-10-16 13:05:37,643 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3394 transitions. Word has length 129 [2022-10-16 13:05:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:37,643 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3394 transitions. [2022-10-16 13:05:37,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:05:37,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3394 transitions. [2022-10-16 13:05:37,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 13:05:37,650 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:37,650 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:37,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:37,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 13:05:37,865 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash 448274713, now seen corresponding path program 1 times [2022-10-16 13:05:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:37,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883299411] [2022-10-16 13:05:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:37,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883299411] [2022-10-16 13:05:38,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883299411] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181700553] [2022-10-16 13:05:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:38,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:38,477 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:38,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:05:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:38,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:05:38,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:38,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:39,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181700553] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:39,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:39,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:05:39,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417911363] [2022-10-16 13:05:39,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:39,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:05:39,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:05:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:05:39,133 INFO L87 Difference]: Start difference. First operand 2501 states and 3394 transitions. Second operand has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:43,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:43,094 INFO L93 Difference]: Finished difference Result 23800 states and 34838 transitions. [2022-10-16 13:05:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 13:05:43,095 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 135 [2022-10-16 13:05:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:43,174 INFO L225 Difference]: With dead ends: 23800 [2022-10-16 13:05:43,174 INFO L226 Difference]: Without dead ends: 23799 [2022-10-16 13:05:43,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:05:43,184 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 5569 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5746 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:43,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5746 Valid, 2532 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 13:05:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23799 states. [2022-10-16 13:05:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23799 to 3509. [2022-10-16 13:05:44,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 3286 states have (on average 1.389531345100426) internal successors, (4566), 3289 states have internal predecessors, (4566), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-16 13:05:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4834 transitions. [2022-10-16 13:05:44,210 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4834 transitions. Word has length 135 [2022-10-16 13:05:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:44,210 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 4834 transitions. [2022-10-16 13:05:44,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4834 transitions. [2022-10-16 13:05:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 13:05:44,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:44,216 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2022-10-16 13:05:44,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:44,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 13:05:44,430 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1719039142, now seen corresponding path program 1 times [2022-10-16 13:05:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:44,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869233719] [2022-10-16 13:05:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:44,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:44,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869233719] [2022-10-16 13:05:44,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869233719] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:44,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483024260] [2022-10-16 13:05:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:44,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:44,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:44,869 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:44,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:05:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:45,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:05:45,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:45,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:45,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483024260] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:45,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:45,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2022-10-16 13:05:45,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705725865] [2022-10-16 13:05:45,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:45,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:05:45,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:05:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:05:45,533 INFO L87 Difference]: Start difference. First operand 3509 states and 4834 transitions. Second operand has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:05:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:47,171 INFO L93 Difference]: Finished difference Result 8723 states and 12020 transitions. [2022-10-16 13:05:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 13:05:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2022-10-16 13:05:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:47,196 INFO L225 Difference]: With dead ends: 8723 [2022-10-16 13:05:47,196 INFO L226 Difference]: Without dead ends: 8721 [2022-10-16 13:05:47,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-10-16 13:05:47,202 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 2154 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:47,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 1520 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 13:05:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2022-10-16 13:05:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8639. [2022-10-16 13:05:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8639 states, 8104 states have (on average 1.3904244817374136) internal successors, (11268), 8107 states have internal predecessors, (11268), 326 states have call successors, (326), 205 states have call predecessors, (326), 205 states have return successors, (326), 326 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-16 13:05:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8639 states to 8639 states and 11920 transitions. [2022-10-16 13:05:48,102 INFO L78 Accepts]: Start accepts. Automaton has 8639 states and 11920 transitions. Word has length 141 [2022-10-16 13:05:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:48,103 INFO L495 AbstractCegarLoop]: Abstraction has 8639 states and 11920 transitions. [2022-10-16 13:05:48,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:05:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8639 states and 11920 transitions. [2022-10-16 13:05:48,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-16 13:05:48,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:48,110 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 13:05:48,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 13:05:48,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 13:05:48,324 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -691126788, now seen corresponding path program 1 times [2022-10-16 13:05:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:48,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219622720] [2022-10-16 13:05:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:05:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:05:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:05:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 13:05:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 13:05:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 13:05:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 13:05:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 13:05:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 13:05:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-16 13:05:48,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:48,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219622720] [2022-10-16 13:05:48,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219622720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:48,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:48,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:05:48,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909102414] [2022-10-16 13:05:48,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:48,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:05:48,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:48,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:05:48,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:05:48,634 INFO L87 Difference]: Start difference. First operand 8639 states and 11920 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:05:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:49,835 INFO L93 Difference]: Finished difference Result 14153 states and 19494 transitions. [2022-10-16 13:05:49,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:05:49,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 172 [2022-10-16 13:05:49,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:49,863 INFO L225 Difference]: With dead ends: 14153 [2022-10-16 13:05:49,863 INFO L226 Difference]: Without dead ends: 8463 [2022-10-16 13:05:49,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:49,876 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 48 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:49,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 416 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2022-10-16 13:05:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 8379. [2022-10-16 13:05:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8379 states, 7844 states have (on average 1.3829678735339113) internal successors, (10848), 7847 states have internal predecessors, (10848), 326 states have call successors, (326), 205 states have call predecessors, (326), 205 states have return successors, (326), 326 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-16 13:05:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 11500 transitions. [2022-10-16 13:05:50,877 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 11500 transitions. Word has length 172 [2022-10-16 13:05:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:50,877 INFO L495 AbstractCegarLoop]: Abstraction has 8379 states and 11500 transitions. [2022-10-16 13:05:50,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:05:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 11500 transitions. [2022-10-16 13:05:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 13:05:50,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:50,887 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 13:05:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 13:05:50,887 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash -399335955, now seen corresponding path program 1 times [2022-10-16 13:05:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770626189] [2022-10-16 13:05:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:05:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:05:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:05:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 13:05:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 13:05:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:05:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:05:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:05:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 13:05:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 13:05:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 13:05:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-10-16 13:05:51,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:51,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770626189] [2022-10-16 13:05:51,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770626189] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:51,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:51,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:05:51,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935713459] [2022-10-16 13:05:51,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:51,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:51,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:51,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:51,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:51,176 INFO L87 Difference]: Start difference. First operand 8379 states and 11500 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:05:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:52,776 INFO L93 Difference]: Finished difference Result 24709 states and 33965 transitions. [2022-10-16 13:05:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:05:52,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 206 [2022-10-16 13:05:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:52,831 INFO L225 Difference]: With dead ends: 24709 [2022-10-16 13:05:52,831 INFO L226 Difference]: Without dead ends: 16359 [2022-10-16 13:05:52,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 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 13:05:52,847 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 133 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:52,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 525 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:05:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16359 states. [2022-10-16 13:05:54,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16359 to 16291. [2022-10-16 13:05:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16291 states, 15322 states have (on average 1.380955488839577) internal successors, (21159), 15325 states have internal predecessors, (21159), 588 states have call successors, (588), 377 states have call predecessors, (588), 377 states have return successors, (588), 588 states have call predecessors, (588), 588 states have call successors, (588) [2022-10-16 13:05:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16291 states to 16291 states and 22335 transitions. [2022-10-16 13:05:54,940 INFO L78 Accepts]: Start accepts. Automaton has 16291 states and 22335 transitions. Word has length 206 [2022-10-16 13:05:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:54,940 INFO L495 AbstractCegarLoop]: Abstraction has 16291 states and 22335 transitions. [2022-10-16 13:05:54,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:05:54,941 INFO L276 IsEmpty]: Start isEmpty. Operand 16291 states and 22335 transitions. [2022-10-16 13:05:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 13:05:54,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:54,958 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 13:05:54,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 13:05:54,959 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:54,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash 73003691, now seen corresponding path program 1 times [2022-10-16 13:05:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:54,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458424180] [2022-10-16 13:05:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:05:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:05:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:05:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 13:05:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 13:05:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:05:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:05:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:05:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 13:05:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 13:05:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 13:05:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-10-16 13:05:55,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:55,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458424180] [2022-10-16 13:05:55,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458424180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:05:55,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:05:55,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:05:55,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628987218] [2022-10-16 13:05:55,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:05:55,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:05:55,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:55,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:05:55,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:05:55,220 INFO L87 Difference]: Start difference. First operand 16291 states and 22335 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:05:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:55,861 INFO L93 Difference]: Finished difference Result 19073 states and 26115 transitions. [2022-10-16 13:05:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:05:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 206 [2022-10-16 13:05:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:55,879 INFO L225 Difference]: With dead ends: 19073 [2022-10-16 13:05:55,879 INFO L226 Difference]: Without dead ends: 2810 [2022-10-16 13:05:55,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:05:55,911 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 35 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:55,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 473 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:05:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-10-16 13:05:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2806. [2022-10-16 13:05:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2641 states have (on average 1.369935630443014) internal successors, (3618), 2643 states have internal predecessors, (3618), 96 states have call successors, (96), 66 states have call predecessors, (96), 66 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-10-16 13:05:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3810 transitions. [2022-10-16 13:05:56,526 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3810 transitions. Word has length 206 [2022-10-16 13:05:56,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:56,526 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 3810 transitions. [2022-10-16 13:05:56,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:05:56,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3810 transitions. [2022-10-16 13:05:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-16 13:05:56,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:56,533 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:56,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 13:05:56,535 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:05:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:56,535 INFO L85 PathProgramCache]: Analyzing trace with hash 501313817, now seen corresponding path program 2 times [2022-10-16 13:05:56,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:56,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24990157] [2022-10-16 13:05:56,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:56,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:05:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:05:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:05:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:58,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:58,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24990157] [2022-10-16 13:05:58,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24990157] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:58,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306792133] [2022-10-16 13:05:58,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:05:58,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:58,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:58,025 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:58,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:05:58,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:05:58,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:05:58,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:05:58,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:58,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:05:59,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306792133] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:59,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:59,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:05:59,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548394330] [2022-10-16 13:05:59,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:59,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:05:59,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:05:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:05:59,494 INFO L87 Difference]: Start difference. First operand 2806 states and 3810 transitions. Second operand has 50 states, 49 states have (on average 7.6938775510204085) internal successors, (377), 49 states have internal predecessors, (377), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:06:06,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:06,852 INFO L93 Difference]: Finished difference Result 35771 states and 50154 transitions. [2022-10-16 13:06:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 13:06:06,853 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 7.6938775510204085) internal successors, (377), 49 states have internal predecessors, (377), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 219 [2022-10-16 13:06:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:06,959 INFO L225 Difference]: With dead ends: 35771 [2022-10-16 13:06:06,959 INFO L226 Difference]: Without dead ends: 35770 [2022-10-16 13:06:06,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:06:06,970 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 7098 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7420 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:06,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7420 Valid, 4157 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:06:06,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35770 states. [2022-10-16 13:06:08,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35770 to 4486. [2022-10-16 13:06:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4321 states have (on average 1.3927331636195326) internal successors, (6018), 4323 states have internal predecessors, (6018), 96 states have call successors, (96), 66 states have call predecessors, (96), 66 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-10-16 13:06:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 6210 transitions. [2022-10-16 13:06:08,109 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 6210 transitions. Word has length 219 [2022-10-16 13:06:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:08,110 INFO L495 AbstractCegarLoop]: Abstraction has 4486 states and 6210 transitions. [2022-10-16 13:06:08,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 7.6938775510204085) internal successors, (377), 49 states have internal predecessors, (377), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:06:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 6210 transitions. [2022-10-16 13:06:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-16 13:06:08,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:08,120 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:08,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:06:08,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 13:06:08,334 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:06:08,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1765955912, now seen corresponding path program 2 times [2022-10-16 13:06:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:08,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395337430] [2022-10-16 13:06:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:06:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:06:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:06:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 0 proven. 1121 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:06:09,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:09,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395337430] [2022-10-16 13:06:09,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395337430] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:09,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646285495] [2022-10-16 13:06:09,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:06:09,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:09,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:09,417 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:06:09,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 13:06:09,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:06:09,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:06:09,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 13:06:09,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-10-16 13:06:09,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:09,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646285495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:09,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:09,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2022-10-16 13:06:09,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253745947] [2022-10-16 13:06:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:09,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:09,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-10-16 13:06:09,738 INFO L87 Difference]: Start difference. First operand 4486 states and 6210 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:06:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:10,308 INFO L93 Difference]: Finished difference Result 8897 states and 12330 transitions. [2022-10-16 13:06:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:10,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 273 [2022-10-16 13:06:10,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:10,319 INFO L225 Difference]: With dead ends: 8897 [2022-10-16 13:06:10,319 INFO L226 Difference]: Without dead ends: 4486 [2022-10-16 13:06:10,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:06:10,329 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:10,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 451 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:06:10,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2022-10-16 13:06:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 4486. [2022-10-16 13:06:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4321 states have (on average 1.3904188845174728) internal successors, (6008), 4323 states have internal predecessors, (6008), 96 states have call successors, (96), 66 states have call predecessors, (96), 66 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-10-16 13:06:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 6200 transitions. [2022-10-16 13:06:10,927 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 6200 transitions. Word has length 273 [2022-10-16 13:06:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:10,927 INFO L495 AbstractCegarLoop]: Abstraction has 4486 states and 6200 transitions. [2022-10-16 13:06:10,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:06:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 6200 transitions. [2022-10-16 13:06:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-10-16 13:06:10,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:10,940 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 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] [2022-10-16 13:06:10,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 13:06:11,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 13:06:11,154 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:06:11,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1575375672, now seen corresponding path program 1 times [2022-10-16 13:06:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:11,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393380595] [2022-10-16 13:06:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:11,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:06:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:06:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:06:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:06:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 13:06:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-16 13:06:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 13:06:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-16 13:06:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 13:06:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-10-16 13:06:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 13:06:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 13:06:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 13:06:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 0 proven. 1231 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-10-16 13:06:12,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:12,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393380595] [2022-10-16 13:06:12,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393380595] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:12,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98984232] [2022-10-16 13:06:12,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:12,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:12,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:12,408 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:06:12,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 13:06:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:12,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:06:12,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 0 proven. 1451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:06:13,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:06:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 0 proven. 1231 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-10-16 13:06:13,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98984232] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:06:13,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:06:13,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2022-10-16 13:06:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499732176] [2022-10-16 13:06:13,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:06:13,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:06:13,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:13,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:06:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:06:13,890 INFO L87 Difference]: Start difference. First operand 4486 states and 6200 transitions. Second operand has 26 states, 25 states have (on average 24.28) internal successors, (607), 25 states have internal predecessors, (607), 23 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) [2022-10-16 13:06:17,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:17,138 INFO L93 Difference]: Finished difference Result 9781 states and 13536 transitions. [2022-10-16 13:06:17,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 13:06:17,139 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 24.28) internal successors, (607), 25 states have internal predecessors, (607), 23 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) Word has length 333 [2022-10-16 13:06:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:17,164 INFO L225 Difference]: With dead ends: 9781 [2022-10-16 13:06:17,164 INFO L226 Difference]: Without dead ends: 9779 [2022-10-16 13:06:17,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=853, Invalid=1403, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 13:06:17,170 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 5051 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5219 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:17,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5219 Valid, 2356 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 13:06:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2022-10-16 13:06:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9754. [2022-10-16 13:06:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9754 states, 9409 states have (on average 1.3922839834201297) internal successors, (13100), 9411 states have internal predecessors, (13100), 204 states have call successors, (204), 138 states have call predecessors, (204), 138 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2022-10-16 13:06:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9754 states to 9754 states and 13508 transitions. [2022-10-16 13:06:18,300 INFO L78 Accepts]: Start accepts. Automaton has 9754 states and 13508 transitions. Word has length 333 [2022-10-16 13:06:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:18,300 INFO L495 AbstractCegarLoop]: Abstraction has 9754 states and 13508 transitions. [2022-10-16 13:06:18,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 24.28) internal successors, (607), 25 states have internal predecessors, (607), 23 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) [2022-10-16 13:06:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 9754 states and 13508 transitions. [2022-10-16 13:06:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-10-16 13:06:18,310 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:18,311 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:18,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 13:06:18,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:18,526 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:06:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 459018521, now seen corresponding path program 3 times [2022-10-16 13:06:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:18,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733288183] [2022-10-16 13:06:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:22,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:06:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:06:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:06:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7527 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:06:22,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:22,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733288183] [2022-10-16 13:06:22,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733288183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:22,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336984735] [2022-10-16 13:06:22,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:06:22,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:22,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:22,470 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:06:22,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 13:06:23,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-10-16 13:06:23,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:06:23,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 13:06:23,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:23,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:06:23,157 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 13:06:23,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-10-16 13:06:23,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:06:23,259 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 13:06:23,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-10-16 13:06:23,749 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 13:06:23,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2022-10-16 13:06:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 7527 backedges. 497 proven. 4 refuted. 0 times theorem prover too weak. 7026 trivial. 0 not checked. [2022-10-16 13:06:23,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:06:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7527 backedges. 498 proven. 3 refuted. 0 times theorem prover too weak. 7026 trivial. 0 not checked. [2022-10-16 13:06:24,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336984735] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:06:24,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:06:24,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 8, 9] total 63 [2022-10-16 13:06:24,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96069772] [2022-10-16 13:06:24,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:06:24,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-10-16 13:06:24,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:24,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-10-16 13:06:24,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1419, Invalid=2487, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 13:06:24,359 INFO L87 Difference]: Start difference. First operand 9754 states and 13508 transitions. Second operand has 63 states, 63 states have (on average 7.825396825396825) internal successors, (493), 62 states have internal predecessors, (493), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:07:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:21,500 INFO L93 Difference]: Finished difference Result 175428 states and 246053 transitions. [2022-10-16 13:07:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2022-10-16 13:07:21,500 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 7.825396825396825) internal successors, (493), 62 states have internal predecessors, (493), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 387 [2022-10-16 13:07:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:22,173 INFO L225 Difference]: With dead ends: 175428 [2022-10-16 13:07:22,174 INFO L226 Difference]: Without dead ends: 165769 [2022-10-16 13:07:22,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12952 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=11500, Invalid=31142, Unknown=0, NotChecked=0, Total=42642 [2022-10-16 13:07:22,246 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 18175 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 9045 mSolverCounterSat, 3992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18532 SdHoareTripleChecker+Valid, 6141 SdHoareTripleChecker+Invalid, 13037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3992 IncrementalHoareTripleChecker+Valid, 9045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:22,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18532 Valid, 6141 Invalid, 13037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3992 Valid, 9045 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-10-16 13:07:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165769 states. [2022-10-16 13:07:28,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165769 to 22040. [2022-10-16 13:07:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22040 states, 21357 states have (on average 1.3528117244931404) internal successors, (28892), 21360 states have internal predecessors, (28892), 405 states have call successors, (405), 273 states have call predecessors, (405), 275 states have return successors, (408), 406 states have call predecessors, (408), 405 states have call successors, (408) [2022-10-16 13:07:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22040 states to 22040 states and 29705 transitions. [2022-10-16 13:07:28,469 INFO L78 Accepts]: Start accepts. Automaton has 22040 states and 29705 transitions. Word has length 387 [2022-10-16 13:07:28,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:28,470 INFO L495 AbstractCegarLoop]: Abstraction has 22040 states and 29705 transitions. [2022-10-16 13:07:28,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 7.825396825396825) internal successors, (493), 62 states have internal predecessors, (493), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:07:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22040 states and 29705 transitions. [2022-10-16 13:07:28,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-10-16 13:07:28,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:28,490 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 47, 47, 47, 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] [2022-10-16 13:07:28,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 13:07:28,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:28,704 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:07:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1607802789, now seen corresponding path program 1 times [2022-10-16 13:07:28,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:28,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725165090] [2022-10-16 13:07:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:28,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:07:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:07:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 7855 backedges. 0 proven. 7849 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:07:32,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:32,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725165090] [2022-10-16 13:07:32,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725165090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:32,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72182640] [2022-10-16 13:07:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:32,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:32,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:32,889 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:07:32,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 13:07:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:33,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 13:07:33,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7855 backedges. 0 proven. 7849 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:07:33,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:07:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7855 backedges. 0 proven. 7849 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:07:37,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72182640] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:07:37,423 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:07:37,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 99 [2022-10-16 13:07:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914223666] [2022-10-16 13:07:37,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:07:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-10-16 13:07:37,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-10-16 13:07:37,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4853, Invalid=5047, Unknown=0, NotChecked=0, Total=9900 [2022-10-16 13:07:37,432 INFO L87 Difference]: Start difference. First operand 22040 states and 29705 transitions. Second operand has 100 states, 99 states have (on average 7.343434343434343) internal successors, (727), 99 states have internal predecessors, (727), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)