/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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:06:27,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:06:27,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:06:27,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:06:27,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:06:27,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:06:27,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:06:27,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:06:27,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:06:27,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:06:27,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:06:27,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:06:27,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:06:27,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:06:27,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:06:27,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:06:27,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:06:27,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:06:27,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:06:27,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:06:27,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:06:27,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:06:27,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:06:27,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:06:27,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:06:27,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:06:27,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:06:27,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:06:27,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:06:27,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:06:27,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:06:27,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:06:27,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:06:27,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:06:27,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:06:27,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:06:27,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:06:27,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:06:27,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:06:27,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:06:27,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:06:27,455 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 13:06:27,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:06:27,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:06:27,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:06:27,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:06:27,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:06:27,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:06:27,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:06:27,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:06:27,521 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:06:27,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:06:27,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:06:27,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:06:27,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:06:27,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:06:27,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:06:27,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:06:27,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:06:27,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:06:27,525 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:06:27,525 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:06:27,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:06:27,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:06:27,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:06:27,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:06:27,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:06:27,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:06:27,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:06:27,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:06:27,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:06:27,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:06:27,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:06:27,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:06:27,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:06:27,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:06:28,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:06:28,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:06:28,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:06:28,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:06:28,048 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:06:28,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:06:28,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699e5a6b1/037cbac868964eda9cc3049d8bc75dcb/FLAGd07fb5ede [2022-10-16 13:06:29,209 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:06:29,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:06:29,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699e5a6b1/037cbac868964eda9cc3049d8bc75dcb/FLAGd07fb5ede [2022-10-16 13:06:29,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699e5a6b1/037cbac868964eda9cc3049d8bc75dcb [2022-10-16 13:06:29,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:06:29,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:06:29,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:06:29,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:06:29,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:06:29,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:06:29" (1/1) ... [2022-10-16 13:06:29,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746d711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:29, skipping insertion in model container [2022-10-16 13:06:29,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:06:29" (1/1) ... [2022-10-16 13:06:29,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:06:29,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:06:30,674 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[151050,151063] [2022-10-16 13:06:31,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:06:31,145 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:06:31,378 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[151050,151063] [2022-10-16 13:06:31,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:06:31,742 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:06:31,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31 WrapperNode [2022-10-16 13:06:31,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:06:31,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:06:31,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:06:31,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:06:31,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:31,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:31,972 INFO L138 Inliner]: procedures = 107, calls = 507, calls flagged for inlining = 36, calls inlined = 27, statements flattened = 1402 [2022-10-16 13:06:31,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:06:31,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:06:31,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:06:31,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:06:31,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:31,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:06:32,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:06:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:06:32,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:06:32,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (1/1) ... [2022-10-16 13:06:32,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:06:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:32,216 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 13:06:32,243 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 13:06:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:06:32,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:06:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:06:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 13:06:32,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-16 13:06:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:06:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:06:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2022-10-16 13:06:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2022-10-16 13:06:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-16 13:06:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-16 13:06:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:06:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:06:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-16 13:06:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-16 13:06:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:06:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:06:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:06:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-10-16 13:06:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-10-16 13:06:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:06:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:06:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:06:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:06:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 13:06:32,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 13:06:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:06:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:06:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-16 13:06:32,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-16 13:06:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:06:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-10-16 13:06:32,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-10-16 13:06:32,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:06:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-16 13:06:32,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-16 13:06:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:06:32,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:06:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-16 13:06:32,294 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-16 13:06:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 13:06:32,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 13:06:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-16 13:06:32,295 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-16 13:06:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:06:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-10-16 13:06:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-10-16 13:06:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-16 13:06:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-16 13:06:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-10-16 13:06:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-10-16 13:06:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:06:32,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:06:32,686 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:06:32,691 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:06:33,024 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:06:34,607 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:06:34,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:06:34,633 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:06:34,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:34 BoogieIcfgContainer [2022-10-16 13:06:34,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:06:34,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:06:34,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:06:34,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:06:34,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:06:29" (1/3) ... [2022-10-16 13:06:34,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50963fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:34, skipping insertion in model container [2022-10-16 13:06:34,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:06:31" (2/3) ... [2022-10-16 13:06:34,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50963fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:34, skipping insertion in model container [2022-10-16 13:06:34,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:34" (3/3) ... [2022-10-16 13:06:34,651 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:06:34,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:06:34,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-10-16 13:06:34,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:06:34,772 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;@157ff732, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:06:34,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-10-16 13:06:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 564 states, 399 states have (on average 1.543859649122807) internal successors, (616), 468 states have internal predecessors, (616), 84 states have call successors, (84), 21 states have call predecessors, (84), 20 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-10-16 13:06:34,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 13:06:34,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:34,799 INFO L195 NwaCegarLoop]: trace histogram [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 13:06:34,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:34,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1077422622, now seen corresponding path program 1 times [2022-10-16 13:06:34,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:34,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036029874] [2022-10-16 13:06:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:34,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:06:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:06:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:06:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:06:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:06:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:06:35,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:35,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036029874] [2022-10-16 13:06:35,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036029874] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:35,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141677350] [2022-10-16 13:06:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:35,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:35,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:35,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:35,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:35,738 INFO L87 Difference]: Start difference. First operand has 564 states, 399 states have (on average 1.543859649122807) internal successors, (616), 468 states have internal predecessors, (616), 84 states have call successors, (84), 21 states have call predecessors, (84), 20 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:06:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:36,522 INFO L93 Difference]: Finished difference Result 1192 states and 1664 transitions. [2022-10-16 13:06:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:06:36,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 48 [2022-10-16 13:06:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:36,545 INFO L225 Difference]: With dead ends: 1192 [2022-10-16 13:06:36,545 INFO L226 Difference]: Without dead ends: 612 [2022-10-16 13:06:36,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 13:06:36,560 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 727 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:36,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1375 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:06:36,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-10-16 13:06:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 608. [2022-10-16 13:06:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 439 states have (on average 1.5079726651480638) internal successors, (662), 502 states have internal predecessors, (662), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:06:36,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 828 transitions. [2022-10-16 13:06:36,714 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 828 transitions. Word has length 48 [2022-10-16 13:06:36,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:36,715 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 828 transitions. [2022-10-16 13:06:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:06:36,716 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 828 transitions. [2022-10-16 13:06:36,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 13:06:36,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:36,727 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] [2022-10-16 13:06:36,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:06:36,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:36,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1762780188, now seen corresponding path program 1 times [2022-10-16 13:06:36,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:36,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051033676] [2022-10-16 13:06:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:36,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,079 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:37,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051033676] [2022-10-16 13:06:37,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051033676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:37,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:37,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653989497] [2022-10-16 13:06:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:37,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:37,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:37,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:37,087 INFO L87 Difference]: Start difference. First operand 608 states and 828 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:06:37,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:37,538 INFO L93 Difference]: Finished difference Result 1239 states and 1699 transitions. [2022-10-16 13:06:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:37,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2022-10-16 13:06:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:37,545 INFO L225 Difference]: With dead ends: 1239 [2022-10-16 13:06:37,546 INFO L226 Difference]: Without dead ends: 635 [2022-10-16 13:06:37,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 13:06:37,550 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 770 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:37,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1293 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:06:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-10-16 13:06:37,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 608. [2022-10-16 13:06:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 439 states have (on average 1.5034168564920274) internal successors, (660), 502 states have internal predecessors, (660), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:06:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 826 transitions. [2022-10-16 13:06:37,656 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 826 transitions. Word has length 50 [2022-10-16 13:06:37,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:37,657 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 826 transitions. [2022-10-16 13:06:37,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:06:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 826 transitions. [2022-10-16 13:06:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 13:06:37,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:37,667 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] [2022-10-16 13:06:37,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:06:37,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash -82586978, now seen corresponding path program 1 times [2022-10-16 13:06:37,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:37,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535478205] [2022-10-16 13:06:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:37,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:37,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:37,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535478205] [2022-10-16 13:06:37,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535478205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:37,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:37,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:37,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052021841] [2022-10-16 13:06:37,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:37,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:37,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:37,943 INFO L87 Difference]: Start difference. First operand 608 states and 826 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:06:38,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:38,375 INFO L93 Difference]: Finished difference Result 1235 states and 1691 transitions. [2022-10-16 13:06:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:38,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2022-10-16 13:06:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:38,382 INFO L225 Difference]: With dead ends: 1235 [2022-10-16 13:06:38,382 INFO L226 Difference]: Without dead ends: 631 [2022-10-16 13:06:38,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 13:06:38,386 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 743 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:38,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1294 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:06:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-10-16 13:06:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 604. [2022-10-16 13:06:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 437 states have (on average 1.4988558352402745) internal successors, (655), 498 states have internal predecessors, (655), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:06:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 821 transitions. [2022-10-16 13:06:38,442 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 821 transitions. Word has length 50 [2022-10-16 13:06:38,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:38,443 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 821 transitions. [2022-10-16 13:06:38,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:06:38,444 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 821 transitions. [2022-10-16 13:06:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 13:06:38,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:38,445 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] [2022-10-16 13:06:38,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:06:38,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:38,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2056467476, now seen corresponding path program 1 times [2022-10-16 13:06:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:38,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272958997] [2022-10-16 13:06:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:38,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:38,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:38,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272958997] [2022-10-16 13:06:38,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272958997] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:38,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:38,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:06:38,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500582710] [2022-10-16 13:06:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:38,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:38,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:38,694 INFO L87 Difference]: Start difference. First operand 604 states and 821 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:39,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:39,249 INFO L93 Difference]: Finished difference Result 1384 states and 1908 transitions. [2022-10-16 13:06:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:39,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-10-16 13:06:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:39,257 INFO L225 Difference]: With dead ends: 1384 [2022-10-16 13:06:39,257 INFO L226 Difference]: Without dead ends: 784 [2022-10-16 13:06:39,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:06:39,261 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 212 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:39,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 2106 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:06:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-10-16 13:06:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 660. [2022-10-16 13:06:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 489 states have (on average 1.5153374233128833) internal successors, (741), 550 states have internal predecessors, (741), 87 states have call successors, (87), 26 states have call predecessors, (87), 26 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-10-16 13:06:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 915 transitions. [2022-10-16 13:06:39,323 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 915 transitions. Word has length 52 [2022-10-16 13:06:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:39,324 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 915 transitions. [2022-10-16 13:06:39,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 915 transitions. [2022-10-16 13:06:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 13:06:39,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:39,326 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] [2022-10-16 13:06:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:06:39,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2056464978, now seen corresponding path program 1 times [2022-10-16 13:06:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:39,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029090082] [2022-10-16 13:06:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:39,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:39,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:39,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:39,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029090082] [2022-10-16 13:06:39,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029090082] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:39,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:39,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038252418] [2022-10-16 13:06:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:39,495 INFO L87 Difference]: Start difference. First operand 660 states and 915 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:40,070 INFO L93 Difference]: Finished difference Result 1293 states and 1788 transitions. [2022-10-16 13:06:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:40,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-10-16 13:06:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:40,076 INFO L225 Difference]: With dead ends: 1293 [2022-10-16 13:06:40,076 INFO L226 Difference]: Without dead ends: 637 [2022-10-16 13:06:40,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 13:06:40,079 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 78 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:40,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1936 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:06:40,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-10-16 13:06:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 609. [2022-10-16 13:06:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 442 states have (on average 1.493212669683258) internal successors, (660), 503 states have internal predecessors, (660), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:06:40,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 826 transitions. [2022-10-16 13:06:40,129 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 826 transitions. Word has length 52 [2022-10-16 13:06:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:40,129 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 826 transitions. [2022-10-16 13:06:40,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:40,130 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 826 transitions. [2022-10-16 13:06:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 13:06:40,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:40,131 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] [2022-10-16 13:06:40,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:06:40,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:40,133 INFO L85 PathProgramCache]: Analyzing trace with hash -808721742, now seen corresponding path program 1 times [2022-10-16 13:06:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:40,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384363833] [2022-10-16 13:06:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:40,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:40,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384363833] [2022-10-16 13:06:40,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384363833] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:40,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:40,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:06:40,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976850567] [2022-10-16 13:06:40,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:40,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:40,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:40,319 INFO L87 Difference]: Start difference. First operand 609 states and 826 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:40,816 INFO L93 Difference]: Finished difference Result 719 states and 994 transitions. [2022-10-16 13:06:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:40,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-10-16 13:06:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:40,823 INFO L225 Difference]: With dead ends: 719 [2022-10-16 13:06:40,823 INFO L226 Difference]: Without dead ends: 717 [2022-10-16 13:06:40,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:06:40,825 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 551 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:40,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1595 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:06:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-10-16 13:06:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 607. [2022-10-16 13:06:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 442 states have (on average 1.48868778280543) internal successors, (658), 501 states have internal predecessors, (658), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:06:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 824 transitions. [2022-10-16 13:06:40,877 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 824 transitions. Word has length 55 [2022-10-16 13:06:40,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:40,878 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 824 transitions. [2022-10-16 13:06:40,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 824 transitions. [2022-10-16 13:06:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 13:06:40,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:40,880 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:06:40,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:06:40,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2137467764, now seen corresponding path program 1 times [2022-10-16 13:06:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:40,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294111161] [2022-10-16 13:06:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:40,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:41,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:41,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294111161] [2022-10-16 13:06:41,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294111161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:41,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245341245] [2022-10-16 13:06:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:41,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:41,181 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 13:06:41,201 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 13:06:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:41,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:06:41,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:41,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:06:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:41,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245341245] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:06:41,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:06:41,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:06:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197508785] [2022-10-16 13:06:41,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:06:41,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:06:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:41,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:06:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:06:41,772 INFO L87 Difference]: Start difference. First operand 607 states and 824 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:43,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:43,888 INFO L93 Difference]: Finished difference Result 2453 states and 3627 transitions. [2022-10-16 13:06:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:06:43,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-10-16 13:06:43,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:43,909 INFO L225 Difference]: With dead ends: 2453 [2022-10-16 13:06:43,909 INFO L226 Difference]: Without dead ends: 2446 [2022-10-16 13:06:43,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 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 13:06:43,912 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 3084 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 6002 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:43,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 6002 Invalid, 2048 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [716 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:06:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2022-10-16 13:06:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 909. [2022-10-16 13:06:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 698 states have (on average 1.5343839541547277) internal successors, (1071), 760 states have internal predecessors, (1071), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:06:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1329 transitions. [2022-10-16 13:06:44,037 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1329 transitions. Word has length 58 [2022-10-16 13:06:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:44,038 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1329 transitions. [2022-10-16 13:06:44,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1329 transitions. [2022-10-16 13:06:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 13:06:44,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:44,040 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] [2022-10-16 13:06:44,085 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 13:06:44,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:44,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2137470262, now seen corresponding path program 1 times [2022-10-16 13:06:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:44,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372680688] [2022-10-16 13:06:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:44,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:44,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372680688] [2022-10-16 13:06:44,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372680688] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:44,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802346129] [2022-10-16 13:06:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:44,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:44,512 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 13:06:44,535 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 13:06:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:44,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:06:44,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:06:44,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:44,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802346129] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:44,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:44,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:06:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884170869] [2022-10-16 13:06:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:44,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:06:44,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:06:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:44,844 INFO L87 Difference]: Start difference. First operand 909 states and 1329 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:45,039 INFO L93 Difference]: Finished difference Result 1618 states and 2433 transitions. [2022-10-16 13:06:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-10-16 13:06:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:45,054 INFO L225 Difference]: With dead ends: 1618 [2022-10-16 13:06:45,054 INFO L226 Difference]: Without dead ends: 1614 [2022-10-16 13:06:45,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:45,057 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 467 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1629 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:06:45,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-10-16 13:06:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1468. [2022-10-16 13:06:45,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1166 states have (on average 1.5668953687821612) internal successors, (1827), 1233 states have internal predecessors, (1827), 221 states have call successors, (221), 26 states have call predecessors, (221), 26 states have return successors, (221), 221 states have call predecessors, (221), 221 states have call successors, (221) [2022-10-16 13:06:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2269 transitions. [2022-10-16 13:06:45,232 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2269 transitions. Word has length 58 [2022-10-16 13:06:45,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:45,234 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 2269 transitions. [2022-10-16 13:06:45,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2269 transitions. [2022-10-16 13:06:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:06:45,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:45,236 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:06:45,274 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 13:06:45,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 13:06:45,452 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1836991592, now seen corresponding path program 1 times [2022-10-16 13:06:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:45,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652779916] [2022-10-16 13:06:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:45,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:45,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:45,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652779916] [2022-10-16 13:06:45,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652779916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:45,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429330649] [2022-10-16 13:06:45,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:45,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:45,736 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 13:06:45,758 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 13:06:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:45,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:06:45,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:46,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:46,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429330649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:46,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:46,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 13:06:46,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116153072] [2022-10-16 13:06:46,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:46,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:06:46,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:06:46,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:46,024 INFO L87 Difference]: Start difference. First operand 1468 states and 2269 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:46,203 INFO L93 Difference]: Finished difference Result 1551 states and 2390 transitions. [2022-10-16 13:06:46,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:46,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-10-16 13:06:46,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:46,214 INFO L225 Difference]: With dead ends: 1551 [2022-10-16 13:06:46,214 INFO L226 Difference]: Without dead ends: 1550 [2022-10-16 13:06:46,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 13:06:46,216 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 474 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:46,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1050 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:06:46,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-10-16 13:06:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1467. [2022-10-16 13:06:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1166 states have (on average 1.5643224699828473) internal successors, (1824), 1232 states have internal predecessors, (1824), 221 states have call successors, (221), 26 states have call predecessors, (221), 26 states have return successors, (221), 221 states have call predecessors, (221), 221 states have call successors, (221) [2022-10-16 13:06:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2266 transitions. [2022-10-16 13:06:46,387 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2266 transitions. Word has length 59 [2022-10-16 13:06:46,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:46,387 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2266 transitions. [2022-10-16 13:06:46,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2266 transitions. [2022-10-16 13:06:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:06:46,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:46,389 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] [2022-10-16 13:06:46,434 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 13:06:46,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:46,605 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1837069048, now seen corresponding path program 1 times [2022-10-16 13:06:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081005046] [2022-10-16 13:06:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:46,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:46,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:46,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:46,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081005046] [2022-10-16 13:06:46,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081005046] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:46,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131581931] [2022-10-16 13:06:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:46,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:46,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:46,803 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 13:06:46,816 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 13:06:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:47,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:06:47,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:06:47,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:47,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131581931] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:47,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:47,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:06:47,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702473829] [2022-10-16 13:06:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:47,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:06:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:47,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:06:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:47,119 INFO L87 Difference]: Start difference. First operand 1467 states and 2266 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:47,391 INFO L93 Difference]: Finished difference Result 2469 states and 3871 transitions. [2022-10-16 13:06:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:47,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-10-16 13:06:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:47,437 INFO L225 Difference]: With dead ends: 2469 [2022-10-16 13:06:47,437 INFO L226 Difference]: Without dead ends: 2465 [2022-10-16 13:06:47,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:47,440 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 464 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:47,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1446 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:06:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-10-16 13:06:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2341. [2022-10-16 13:06:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2341 states, 1878 states have (on average 1.5676251331203408) internal successors, (2944), 1950 states have internal predecessors, (2944), 385 states have call successors, (385), 26 states have call predecessors, (385), 26 states have return successors, (385), 385 states have call predecessors, (385), 385 states have call successors, (385) [2022-10-16 13:06:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 3714 transitions. [2022-10-16 13:06:47,744 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 3714 transitions. Word has length 59 [2022-10-16 13:06:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:47,744 INFO L495 AbstractCegarLoop]: Abstraction has 2341 states and 3714 transitions. [2022-10-16 13:06:47,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 3714 transitions. [2022-10-16 13:06:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:06:47,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:47,747 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:06:47,791 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 13:06:47,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:47,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1112164854, now seen corresponding path program 1 times [2022-10-16 13:06:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:47,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816796656] [2022-10-16 13:06:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:47,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:06:48,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:48,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816796656] [2022-10-16 13:06:48,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816796656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:48,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:48,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:06:48,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248487772] [2022-10-16 13:06:48,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:48,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:48,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:48,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:48,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:48,114 INFO L87 Difference]: Start difference. First operand 2341 states and 3714 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:48,725 INFO L93 Difference]: Finished difference Result 2368 states and 3827 transitions. [2022-10-16 13:06:48,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:48,726 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2022-10-16 13:06:48,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:48,775 INFO L225 Difference]: With dead ends: 2368 [2022-10-16 13:06:48,775 INFO L226 Difference]: Without dead ends: 2367 [2022-10-16 13:06:48,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:06:48,779 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 74 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:48,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1891 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:06:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2022-10-16 13:06:49,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2340. [2022-10-16 13:06:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2340 states, 1878 states have (on average 1.566027689030884) internal successors, (2941), 1949 states have internal predecessors, (2941), 385 states have call successors, (385), 26 states have call predecessors, (385), 26 states have return successors, (385), 385 states have call predecessors, (385), 385 states have call successors, (385) [2022-10-16 13:06:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 3711 transitions. [2022-10-16 13:06:49,048 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 3711 transitions. Word has length 60 [2022-10-16 13:06:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:49,048 INFO L495 AbstractCegarLoop]: Abstraction has 2340 states and 3711 transitions. [2022-10-16 13:06:49,049 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 3711 transitions. [2022-10-16 13:06:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:06:49,055 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:49,055 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 13:06:49,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:06:49,055 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1114764732, now seen corresponding path program 1 times [2022-10-16 13:06:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:49,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894733710] [2022-10-16 13:06:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:49,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894733710] [2022-10-16 13:06:49,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894733710] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928319324] [2022-10-16 13:06:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:49,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:49,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:49,250 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 13:06:49,273 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 13:06:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:49,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:06:49,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:06:49,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:49,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928319324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:49,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:49,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 13:06:49,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319238927] [2022-10-16 13:06:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:49,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:06:49,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:49,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:06:49,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:49,526 INFO L87 Difference]: Start difference. First operand 2340 states and 3711 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:49,689 INFO L93 Difference]: Finished difference Result 3690 states and 5768 transitions. [2022-10-16 13:06:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:49,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2022-10-16 13:06:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:49,701 INFO L225 Difference]: With dead ends: 3690 [2022-10-16 13:06:49,701 INFO L226 Difference]: Without dead ends: 1354 [2022-10-16 13:06:49,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:49,710 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 11 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:49,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1455 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:06:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-10-16 13:06:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1352. [2022-10-16 13:06:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1064 states have (on average 1.5347744360902256) internal successors, (1633), 1125 states have internal predecessors, (1633), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:06:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2055 transitions. [2022-10-16 13:06:49,880 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2055 transitions. Word has length 60 [2022-10-16 13:06:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:49,880 INFO L495 AbstractCegarLoop]: Abstraction has 1352 states and 2055 transitions. [2022-10-16 13:06:49,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2055 transitions. [2022-10-16 13:06:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 13:06:49,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:49,882 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, 1] [2022-10-16 13:06:49,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 13:06:50,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 13:06:50,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:50,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash 191808944, now seen corresponding path program 1 times [2022-10-16 13:06:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:50,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753449559] [2022-10-16 13:06:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:50,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:50,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753449559] [2022-10-16 13:06:50,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753449559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:50,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229651039] [2022-10-16 13:06:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:50,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:50,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:50,272 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 13:06:50,294 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 13:06:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:50,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:06:50,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:06:50,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:50,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229651039] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:50,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:50,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-10-16 13:06:50,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214488845] [2022-10-16 13:06:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:50,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:50,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:06:50,657 INFO L87 Difference]: Start difference. First operand 1352 states and 2055 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:50,820 INFO L93 Difference]: Finished difference Result 2696 states and 4102 transitions. [2022-10-16 13:06:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:50,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 61 [2022-10-16 13:06:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:50,830 INFO L225 Difference]: With dead ends: 2696 [2022-10-16 13:06:50,830 INFO L226 Difference]: Without dead ends: 1348 [2022-10-16 13:06:50,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:06:50,836 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 730 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:50,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 735 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:06:50,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-10-16 13:06:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1348. [2022-10-16 13:06:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1060 states have (on average 1.5349056603773585) internal successors, (1627), 1121 states have internal predecessors, (1627), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:06:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2049 transitions. [2022-10-16 13:06:51,004 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2049 transitions. Word has length 61 [2022-10-16 13:06:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:51,004 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 2049 transitions. [2022-10-16 13:06:51,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2049 transitions. [2022-10-16 13:06:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 13:06:51,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:51,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:51,048 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 13:06:51,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:51,223 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:51,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:51,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1442030348, now seen corresponding path program 1 times [2022-10-16 13:06:51,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:51,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880338597] [2022-10-16 13:06:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:51,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:06:51,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:51,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880338597] [2022-10-16 13:06:51,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880338597] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:51,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321060349] [2022-10-16 13:06:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:51,399 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 13:06:51,420 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 13:06:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:51,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:06:51,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:06:51,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:06:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:06:51,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321060349] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:06:51,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:06:51,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-10-16 13:06:51,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291824113] [2022-10-16 13:06:51,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:06:51,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:06:51,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:06:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:06:51,729 INFO L87 Difference]: Start difference. First operand 1348 states and 2049 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:52,301 INFO L93 Difference]: Finished difference Result 2211 states and 3307 transitions. [2022-10-16 13:06:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:06:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2022-10-16 13:06:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:52,312 INFO L225 Difference]: With dead ends: 2211 [2022-10-16 13:06:52,312 INFO L226 Difference]: Without dead ends: 867 [2022-10-16 13:06:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:06:52,317 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 93 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:52,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 3155 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:06:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-10-16 13:06:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 840. [2022-10-16 13:06:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 639 states have (on average 1.4945226917057903) internal successors, (955), 695 states have internal predecessors, (955), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:06:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1203 transitions. [2022-10-16 13:06:52,395 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1203 transitions. Word has length 66 [2022-10-16 13:06:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:52,395 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1203 transitions. [2022-10-16 13:06:52,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1203 transitions. [2022-10-16 13:06:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 13:06:52,397 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:52,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:06:52,444 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 13:06:52,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:52,612 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:52,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1828689624, now seen corresponding path program 1 times [2022-10-16 13:06:52,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:52,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389500097] [2022-10-16 13:06:52,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:52,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:06:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 13:06:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:06:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 13:06:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:06:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:06:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:06:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:06:52,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:52,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389500097] [2022-10-16 13:06:52,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389500097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:52,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:52,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:06:52,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155025120] [2022-10-16 13:06:52,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:52,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:06:52,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:52,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:06:52,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:06:52,765 INFO L87 Difference]: Start difference. First operand 840 states and 1203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:06:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:53,250 INFO L93 Difference]: Finished difference Result 1680 states and 2407 transitions. [2022-10-16 13:06:53,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:06:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2022-10-16 13:06:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:53,258 INFO L225 Difference]: With dead ends: 1680 [2022-10-16 13:06:53,258 INFO L226 Difference]: Without dead ends: 844 [2022-10-16 13:06:53,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 13:06:53,262 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 701 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:53,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1212 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:06:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-10-16 13:06:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 840. [2022-10-16 13:06:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 639 states have (on average 1.4929577464788732) internal successors, (954), 695 states have internal predecessors, (954), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:06:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1202 transitions. [2022-10-16 13:06:53,362 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1202 transitions. Word has length 67 [2022-10-16 13:06:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:53,362 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1202 transitions. [2022-10-16 13:06:53,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:06:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1202 transitions. [2022-10-16 13:06:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 13:06:53,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:53,364 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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 13:06:53,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 13:06:53,365 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash -193878516, now seen corresponding path program 2 times [2022-10-16 13:06:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:53,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333952353] [2022-10-16 13:06:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:53,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 13:06:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:06:53,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:53,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333952353] [2022-10-16 13:06:53,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333952353] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963098165] [2022-10-16 13:06:53,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:06:53,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:53,685 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 13:06:53,712 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 13:06:54,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:06:54,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:06:54,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:06:54,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 13:06:54,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:06:54,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963098165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:54,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:06:54,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 13:06:54,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245092667] [2022-10-16 13:06:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:54,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:06:54,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:06:54,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:06:54,033 INFO L87 Difference]: Start difference. First operand 840 states and 1202 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:54,129 INFO L93 Difference]: Finished difference Result 1678 states and 2403 transitions. [2022-10-16 13:06:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:06:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2022-10-16 13:06:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:54,135 INFO L225 Difference]: With dead ends: 1678 [2022-10-16 13:06:54,135 INFO L226 Difference]: Without dead ends: 842 [2022-10-16 13:06:54,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:06:54,139 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 0 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:54,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1468 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:06:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-10-16 13:06:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-10-16 13:06:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 641 states have (on average 1.4914196567862714) internal successors, (956), 697 states have internal predecessors, (956), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:06:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1204 transitions. [2022-10-16 13:06:54,223 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1204 transitions. Word has length 76 [2022-10-16 13:06:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:54,224 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1204 transitions. [2022-10-16 13:06:54,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:06:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1204 transitions. [2022-10-16 13:06:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 13:06:54,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:54,226 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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 13:06:54,275 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 13:06:54,441 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,SelfDestructingSolverStorable15 [2022-10-16 13:06:54,441 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:06:54,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:54,442 INFO L85 PathProgramCache]: Analyzing trace with hash 828891943, now seen corresponding path program 1 times [2022-10-16 13:06:54,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:54,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754923755] [2022-10-16 13:06:54,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:54,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:06:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:06:54,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754923755] [2022-10-16 13:06:54,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754923755] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:06:54,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327439683] [2022-10-16 13:06:54,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:54,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:06:54,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:54,844 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 13:06:54,864 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 13:06:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:55,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:06:55,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:06:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:06:55,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:06:55,366 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:06:55,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327439683] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:06:55,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:06:55,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:06:55,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954175155] [2022-10-16 13:06:55,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:06:55,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:06:55,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:55,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:06:55,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:06:55,368 INFO L87 Difference]: Start difference. First operand 842 states and 1204 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:07:00,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:00,053 INFO L93 Difference]: Finished difference Result 7441 states and 11671 transitions. [2022-10-16 13:07:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 13:07:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 78 [2022-10-16 13:07:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:00,124 INFO L225 Difference]: With dead ends: 7441 [2022-10-16 13:07:00,124 INFO L226 Difference]: Without dead ends: 7434 [2022-10-16 13:07:00,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 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 13:07:00,130 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 5917 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 1159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 15079 SdHoareTripleChecker+Invalid, 4507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:00,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6657 Valid, 15079 Invalid, 4507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1159 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 13:07:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2022-10-16 13:07:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 1386. [2022-10-16 13:07:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1098 states have (on average 1.518214936247723) internal successors, (1667), 1159 states have internal predecessors, (1667), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:07:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2089 transitions. [2022-10-16 13:07:00,398 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2089 transitions. Word has length 78 [2022-10-16 13:07:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:00,399 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 2089 transitions. [2022-10-16 13:07:00,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:07:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2089 transitions. [2022-10-16 13:07:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:07:00,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:00,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:00,438 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 13:07:00,614 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,SelfDestructingSolverStorable16 [2022-10-16 13:07:00,614 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:00,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1158601122, now seen corresponding path program 1 times [2022-10-16 13:07:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:00,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135276097] [2022-10-16 13:07:00,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 13:07:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 13:07:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:07:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:07:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:07:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:07:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:07:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:07:00,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:00,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135276097] [2022-10-16 13:07:00,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135276097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:00,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:00,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:07:00,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009307845] [2022-10-16 13:07:00,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:00,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:07:00,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:00,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:07:00,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:07:00,842 INFO L87 Difference]: Start difference. First operand 1386 states and 2089 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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 13:07:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:01,876 INFO L93 Difference]: Finished difference Result 2802 states and 4260 transitions. [2022-10-16 13:07:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:07:01,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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 83 [2022-10-16 13:07:01,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:01,909 INFO L225 Difference]: With dead ends: 2802 [2022-10-16 13:07:01,909 INFO L226 Difference]: Without dead ends: 1417 [2022-10-16 13:07:01,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:07:01,919 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 158 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:01,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 2840 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:07:01,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2022-10-16 13:07:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1386. [2022-10-16 13:07:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1098 states have (on average 1.517304189435337) internal successors, (1666), 1159 states have internal predecessors, (1666), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:07:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2088 transitions. [2022-10-16 13:07:02,099 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2088 transitions. Word has length 83 [2022-10-16 13:07:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:02,099 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 2088 transitions. [2022-10-16 13:07:02,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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 13:07:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2088 transitions. [2022-10-16 13:07:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:07:02,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:02,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:02,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 13:07:02,102 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:02,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash 780560924, now seen corresponding path program 1 times [2022-10-16 13:07:02,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:02,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491285589] [2022-10-16 13:07:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 13:07:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 13:07:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:07:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:07:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:07:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:07:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:07:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:07:02,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:02,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491285589] [2022-10-16 13:07:02,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491285589] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:02,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:02,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:07:02,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315749486] [2022-10-16 13:07:02,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:02,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:07:02,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:02,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:07:02,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:07:02,290 INFO L87 Difference]: Start difference. First operand 1386 states and 2088 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 13:07:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:03,724 INFO L93 Difference]: Finished difference Result 4125 states and 6311 transitions. [2022-10-16 13:07:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:07:03,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2022-10-16 13:07:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:03,743 INFO L225 Difference]: With dead ends: 4125 [2022-10-16 13:07:03,744 INFO L226 Difference]: Without dead ends: 2720 [2022-10-16 13:07:03,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:07:03,751 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 908 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:03,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2334 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 13:07:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-10-16 13:07:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2613. [2022-10-16 13:07:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2115 states have (on average 1.51725768321513) internal successors, (3209), 2187 states have internal predecessors, (3209), 403 states have call successors, (403), 44 states have call predecessors, (403), 44 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2022-10-16 13:07:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 4015 transitions. [2022-10-16 13:07:04,076 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 4015 transitions. Word has length 83 [2022-10-16 13:07:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:04,077 INFO L495 AbstractCegarLoop]: Abstraction has 2613 states and 4015 transitions. [2022-10-16 13:07:04,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 13:07:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 4015 transitions. [2022-10-16 13:07:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 13:07:04,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:04,079 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:07:04,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 13:07:04,079 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1624836161, now seen corresponding path program 1 times [2022-10-16 13:07:04,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:04,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116252764] [2022-10-16 13:07:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:04,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-16 13:07:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:04,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116252764] [2022-10-16 13:07:04,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116252764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:04,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275032018] [2022-10-16 13:07:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:04,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:04,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:04,316 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 13:07:04,339 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 13:07:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:04,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:07:04,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:07:04,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:07:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:07:04,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275032018] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:07:04,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:07:04,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2022-10-16 13:07:04,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41156511] [2022-10-16 13:07:04,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:07:04,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 13:07:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:04,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 13:07:04,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:07:04,822 INFO L87 Difference]: Start difference. First operand 2613 states and 4015 transitions. Second operand has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:07:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:06,135 INFO L93 Difference]: Finished difference Result 4867 states and 7469 transitions. [2022-10-16 13:07:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 13:07:06,135 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 86 [2022-10-16 13:07:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:06,149 INFO L225 Difference]: With dead ends: 4867 [2022-10-16 13:07:06,149 INFO L226 Difference]: Without dead ends: 2892 [2022-10-16 13:07:06,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:07:06,158 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 700 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:06,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 4317 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 13:07:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-10-16 13:07:06,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2597. [2022-10-16 13:07:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2099 states have (on average 1.5192949023344449) internal successors, (3189), 2171 states have internal predecessors, (3189), 403 states have call successors, (403), 44 states have call predecessors, (403), 44 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2022-10-16 13:07:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3995 transitions. [2022-10-16 13:07:06,453 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3995 transitions. Word has length 86 [2022-10-16 13:07:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:06,454 INFO L495 AbstractCegarLoop]: Abstraction has 2597 states and 3995 transitions. [2022-10-16 13:07:06,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.6) internal successors, (114), 14 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:07:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3995 transitions. [2022-10-16 13:07:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 13:07:06,456 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:06,456 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 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 13:07:06,494 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 13:07:06,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:06,669 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:06,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1287273257, now seen corresponding path program 2 times [2022-10-16 13:07:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:06,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805808717] [2022-10-16 13:07:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:07,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:07,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805808717] [2022-10-16 13:07:07,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805808717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:07,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980121239] [2022-10-16 13:07:07,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:07:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:07,246 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 13:07:07,248 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 13:07:07,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:07:07,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:07:07,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 13:07:07,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-10-16 13:07:07,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:07:07,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980121239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:07,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:07:07,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2022-10-16 13:07:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062332082] [2022-10-16 13:07:07,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:07,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:07:07,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:07,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:07:07,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:07:07,650 INFO L87 Difference]: Start difference. First operand 2597 states and 3995 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:07,977 INFO L93 Difference]: Finished difference Result 5233 states and 8063 transitions. [2022-10-16 13:07:07,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:07:07,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 114 [2022-10-16 13:07:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:07,988 INFO L225 Difference]: With dead ends: 5233 [2022-10-16 13:07:07,989 INFO L226 Difference]: Without dead ends: 2698 [2022-10-16 13:07:07,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:07:07,998 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 62 mSDsluCounter, 5590 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 6402 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:07,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 6402 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:07:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-10-16 13:07:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2613. [2022-10-16 13:07:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2111 states have (on average 1.5163429654192326) internal successors, (3201), 2184 states have internal predecessors, (3201), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:07:08,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 4024 transitions. [2022-10-16 13:07:08,322 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 4024 transitions. Word has length 114 [2022-10-16 13:07:08,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:08,323 INFO L495 AbstractCegarLoop]: Abstraction has 2613 states and 4024 transitions. [2022-10-16 13:07:08,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 4024 transitions. [2022-10-16 13:07:08,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 13:07:08,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:08,325 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 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] [2022-10-16 13:07:08,366 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 13:07:08,540 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,SelfDestructingSolverStorable20 [2022-10-16 13:07:08,540 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash -79470689, now seen corresponding path program 1 times [2022-10-16 13:07:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:08,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013391318] [2022-10-16 13:07:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:08,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:09,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013391318] [2022-10-16 13:07:09,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013391318] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197491409] [2022-10-16 13:07:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:09,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:09,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:09,240 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 13:07:09,242 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 13:07:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:09,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 13:07:09,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:09,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:07:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:10,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197491409] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:07:10,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:07:10,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:07:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194631091] [2022-10-16 13:07:10,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:07:10,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:07:10,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:10,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:07:10,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:07:10,012 INFO L87 Difference]: Start difference. First operand 2613 states and 4024 transitions. Second operand has 26 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:21,699 INFO L93 Difference]: Finished difference Result 50253 states and 83686 transitions. [2022-10-16 13:07:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 13:07:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2022-10-16 13:07:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:21,955 INFO L225 Difference]: With dead ends: 50253 [2022-10-16 13:07:21,955 INFO L226 Difference]: Without dead ends: 50246 [2022-10-16 13:07:21,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:07:21,980 INFO L413 NwaCegarLoop]: 6833 mSDtfsCounter, 14560 mSDsluCounter, 22799 mSDsCounter, 0 mSdLazyCounter, 6735 mSolverCounterSat, 4271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16163 SdHoareTripleChecker+Valid, 29632 SdHoareTripleChecker+Invalid, 11006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4271 IncrementalHoareTripleChecker+Valid, 6735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:21,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16163 Valid, 29632 Invalid, 11006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4271 Valid, 6735 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-10-16 13:07:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50246 states. [2022-10-16 13:07:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50246 to 4773. [2022-10-16 13:07:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4773 states, 3923 states have (on average 1.5302064746367576) internal successors, (6003), 4016 states have internal predecessors, (6003), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:07:24,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4773 states to 4773 states and 7530 transitions. [2022-10-16 13:07:24,139 INFO L78 Accepts]: Start accepts. Automaton has 4773 states and 7530 transitions. Word has length 120 [2022-10-16 13:07:24,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:24,140 INFO L495 AbstractCegarLoop]: Abstraction has 4773 states and 7530 transitions. [2022-10-16 13:07:24,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4773 states and 7530 transitions. [2022-10-16 13:07:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 13:07:24,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:24,142 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:24,185 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 13:07:24,357 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,SelfDestructingSolverStorable21 [2022-10-16 13:07:24,357 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:24,358 INFO L85 PathProgramCache]: Analyzing trace with hash 64652847, now seen corresponding path program 1 times [2022-10-16 13:07:24,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:24,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496688834] [2022-10-16 13:07:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-10-16 13:07:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:24,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496688834] [2022-10-16 13:07:24,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496688834] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:24,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407800465] [2022-10-16 13:07:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:24,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:24,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:24,695 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 13:07:24,715 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 13:07:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:25,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:07:25,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:07:25,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:07:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:07:25,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407800465] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:07:25,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:07:25,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 27 [2022-10-16 13:07:25,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688778889] [2022-10-16 13:07:25,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:07:25,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 13:07:25,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 13:07:25,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2022-10-16 13:07:25,542 INFO L87 Difference]: Start difference. First operand 4773 states and 7530 transitions. Second operand has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:26,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:26,337 INFO L93 Difference]: Finished difference Result 5865 states and 9058 transitions. [2022-10-16 13:07:26,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 13:07:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 128 [2022-10-16 13:07:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:26,344 INFO L225 Difference]: With dead ends: 5865 [2022-10-16 13:07:26,344 INFO L226 Difference]: Without dead ends: 1811 [2022-10-16 13:07:26,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2022-10-16 13:07:26,358 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 306 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:26,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 3783 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:07:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-10-16 13:07:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1769. [2022-10-16 13:07:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1441 states have (on average 1.4115197779319917) internal successors, (2034), 1504 states have internal predecessors, (2034), 229 states have call successors, (229), 44 states have call predecessors, (229), 48 states have return successors, (242), 232 states have call predecessors, (242), 229 states have call successors, (242) [2022-10-16 13:07:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2505 transitions. [2022-10-16 13:07:26,550 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2505 transitions. Word has length 128 [2022-10-16 13:07:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:26,551 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2505 transitions. [2022-10-16 13:07:26,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2505 transitions. [2022-10-16 13:07:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-10-16 13:07:26,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:26,554 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 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] [2022-10-16 13:07:26,602 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 13:07:26,769 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,SelfDestructingSolverStorable22 [2022-10-16 13:07:26,769 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:07:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash -952347905, now seen corresponding path program 2 times [2022-10-16 13:07:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:26,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163933178] [2022-10-16 13:07:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:26,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:07:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:28,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:28,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163933178] [2022-10-16 13:07:28,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163933178] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:07:28,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7206376] [2022-10-16 13:07:28,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:07:28,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:07:28,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:07:28,310 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 13:07:28,335 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 13:07:28,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:07:28,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:07:28,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 13:07:28,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:07:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:28,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:07:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:07:29,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7206376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:07:29,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:07:29,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:07:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794729401] [2022-10-16 13:07:29,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:07:29,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:07:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:07:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:07:29,951 INFO L87 Difference]: Start difference. First operand 1769 states and 2505 transitions. Second operand has 50 states, 49 states have (on average 6.510204081632653) internal successors, (319), 49 states have internal predecessors, (319), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:07:58,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:58,294 INFO L93 Difference]: Finished difference Result 55717 states and 90671 transitions. [2022-10-16 13:07:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 13:07:58,294 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.510204081632653) internal successors, (319), 49 states have internal predecessors, (319), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2022-10-16 13:07:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:58,684 INFO L225 Difference]: With dead ends: 55717 [2022-10-16 13:07:58,684 INFO L226 Difference]: Without dead ends: 55710 [2022-10-16 13:07:58,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:07:58,712 INFO L413 NwaCegarLoop]: 13667 mSDtfsCounter, 30399 mSDsluCounter, 60326 mSDsCounter, 0 mSdLazyCounter, 18550 mSolverCounterSat, 7679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33668 SdHoareTripleChecker+Valid, 73993 SdHoareTripleChecker+Invalid, 26229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7679 IncrementalHoareTripleChecker+Valid, 18550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:58,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33668 Valid, 73993 Invalid, 26229 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7679 Valid, 18550 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-10-16 13:07:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55710 states. [2022-10-16 13:08:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55710 to 3085. [2022-10-16 13:08:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 2583 states have (on average 1.437475803329462) internal successors, (3713), 2656 states have internal predecessors, (3713), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:08:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4536 transitions. [2022-10-16 13:08:01,159 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4536 transitions. Word has length 192 [2022-10-16 13:08:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:01,160 INFO L495 AbstractCegarLoop]: Abstraction has 3085 states and 4536 transitions. [2022-10-16 13:08:01,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.510204081632653) internal successors, (319), 49 states have internal predecessors, (319), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4536 transitions. [2022-10-16 13:08:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 13:08:01,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:01,164 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:01,211 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 13:08:01,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:01,378 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:01,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash 540564639, now seen corresponding path program 1 times [2022-10-16 13:08:01,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:01,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043126206] [2022-10-16 13:08:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:01,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:08:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 13:08:03,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:03,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043126206] [2022-10-16 13:08:03,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043126206] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:03,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406069309] [2022-10-16 13:08:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:03,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:03,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:03,255 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 13:08:03,270 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 13:08:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:03,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:08:03,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 13:08:03,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:04,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 13:08:04,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406069309] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:04,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:04,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 25] total 35 [2022-10-16 13:08:04,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930927927] [2022-10-16 13:08:04,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:04,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 13:08:04,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 13:08:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 13:08:04,625 INFO L87 Difference]: Start difference. First operand 3085 states and 4536 transitions. Second operand has 35 states, 35 states have (on average 6.8) internal successors, (238), 34 states have internal predecessors, (238), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:06,156 INFO L93 Difference]: Finished difference Result 5345 states and 7942 transitions. [2022-10-16 13:08:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 13:08:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 6.8) internal successors, (238), 34 states have internal predecessors, (238), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 206 [2022-10-16 13:08:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:06,170 INFO L225 Difference]: With dead ends: 5345 [2022-10-16 13:08:06,170 INFO L226 Difference]: Without dead ends: 3125 [2022-10-16 13:08:06,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 398 SyntacticMatches, 14 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 13:08:06,179 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 233 mSDsluCounter, 6886 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 7628 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:06,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 7628 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 13:08:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2022-10-16 13:08:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 3085. [2022-10-16 13:08:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 2583 states have (on average 1.429732868757259) internal successors, (3693), 2656 states have internal predecessors, (3693), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:08:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4516 transitions. [2022-10-16 13:08:07,019 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4516 transitions. Word has length 206 [2022-10-16 13:08:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:07,020 INFO L495 AbstractCegarLoop]: Abstraction has 3085 states and 4516 transitions. [2022-10-16 13:08:07,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.8) internal successors, (238), 34 states have internal predecessors, (238), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4516 transitions. [2022-10-16 13:08:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 13:08:07,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:07,025 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:07,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:07,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:07,238 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1680308369, now seen corresponding path program 2 times [2022-10-16 13:08:07,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:07,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46503683] [2022-10-16 13:08:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:07,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:08:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:07,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46503683] [2022-10-16 13:08:07,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46503683] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:07,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784575595] [2022-10-16 13:08:07,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:08:07,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:07,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:07,776 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 13:08:07,797 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 13:08:08,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:08:08,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:08:08,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:08:08,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:08,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:09,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784575595] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:09,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:09,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-10-16 13:08:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873388153] [2022-10-16 13:08:09,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:09,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 13:08:09,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 13:08:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:08:09,040 INFO L87 Difference]: Start difference. First operand 3085 states and 4516 transitions. Second operand has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:13,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:13,451 INFO L93 Difference]: Finished difference Result 12134 states and 19466 transitions. [2022-10-16 13:08:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:08:13,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 266 [2022-10-16 13:08:13,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:13,489 INFO L225 Difference]: With dead ends: 12134 [2022-10-16 13:08:13,489 INFO L226 Difference]: Without dead ends: 12131 [2022-10-16 13:08:13,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:08:13,495 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 3989 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4416 SdHoareTripleChecker+Valid, 7242 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:13,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4416 Valid, 7242 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:08:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12131 states. [2022-10-16 13:08:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12131 to 5157. [2022-10-16 13:08:14,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 4307 states have (on average 1.4894358021824936) internal successors, (6415), 4400 states have internal predecessors, (6415), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:08:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 7942 transitions. [2022-10-16 13:08:14,735 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 7942 transitions. Word has length 266 [2022-10-16 13:08:14,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:14,735 INFO L495 AbstractCegarLoop]: Abstraction has 5157 states and 7942 transitions. [2022-10-16 13:08:14,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:14,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 7942 transitions. [2022-10-16 13:08:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 13:08:14,740 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:14,741 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:14,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:14,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 13:08:14,955 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:14,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1680305817, now seen corresponding path program 2 times [2022-10-16 13:08:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:14,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493970981] [2022-10-16 13:08:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:14,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:08:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3029 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:15,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:15,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493970981] [2022-10-16 13:08:15,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493970981] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:15,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150672607] [2022-10-16 13:08:15,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:08:15,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:15,393 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:15,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 13:08:15,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:08:15,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:08:15,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:08:15,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:15,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-16 13:08:15,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:08:15,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150672607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:15,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:08:15,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 13:08:15,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539215728] [2022-10-16 13:08:15,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:15,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:08:15,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:15,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:08:15,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:08:15,776 INFO L87 Difference]: Start difference. First operand 5157 states and 7942 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 13:08:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:17,731 INFO L93 Difference]: Finished difference Result 9203 states and 14633 transitions. [2022-10-16 13:08:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:08:17,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 266 [2022-10-16 13:08:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:17,756 INFO L225 Difference]: With dead ends: 9203 [2022-10-16 13:08:17,756 INFO L226 Difference]: Without dead ends: 9201 [2022-10-16 13:08:17,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:08:17,761 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 386 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:17,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1470 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:08:17,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9201 states. [2022-10-16 13:08:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9201 to 5181. [2022-10-16 13:08:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 4331 states have (on average 1.4885707688755483) internal successors, (6447), 4424 states have internal predecessors, (6447), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:08:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 7974 transitions. [2022-10-16 13:08:18,962 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 7974 transitions. Word has length 266 [2022-10-16 13:08:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:18,963 INFO L495 AbstractCegarLoop]: Abstraction has 5181 states and 7974 transitions. [2022-10-16 13:08:18,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 13:08:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 7974 transitions. [2022-10-16 13:08:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-10-16 13:08:18,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:18,967 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:19,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-10-16 13:08:19,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 13:08:19,181 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash -549872267, now seen corresponding path program 1 times [2022-10-16 13:08:19,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:19,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091715020] [2022-10-16 13:08:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:19,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:08:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3029 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:19,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091715020] [2022-10-16 13:08:19,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091715020] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:19,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713038995] [2022-10-16 13:08:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:19,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:19,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:19,656 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:19,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 13:08:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:20,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:08:20,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3029 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:20,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3029 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:20,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713038995] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:20,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:20,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-10-16 13:08:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271379577] [2022-10-16 13:08:20,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:08:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:08:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:08:20,265 INFO L87 Difference]: Start difference. First operand 5181 states and 7974 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:21,386 INFO L93 Difference]: Finished difference Result 6976 states and 10592 transitions. [2022-10-16 13:08:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:08:21,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 267 [2022-10-16 13:08:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:21,395 INFO L225 Difference]: With dead ends: 6976 [2022-10-16 13:08:21,395 INFO L226 Difference]: Without dead ends: 3224 [2022-10-16 13:08:21,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:08:21,412 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 117 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:21,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 3767 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:08:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2022-10-16 13:08:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 3184. [2022-10-16 13:08:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 2683 states have (on average 1.413715989563921) internal successors, (3793), 2755 states have internal predecessors, (3793), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:08:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4616 transitions. [2022-10-16 13:08:22,086 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4616 transitions. Word has length 267 [2022-10-16 13:08:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:22,087 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 4616 transitions. [2022-10-16 13:08:22,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4616 transitions. [2022-10-16 13:08:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-10-16 13:08:22,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:22,090 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 7, 7, 6, 6, 6, 6, 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 13:08:22,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:22,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 13:08:22,291 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash -576172145, now seen corresponding path program 3 times [2022-10-16 13:08:22,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:22,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137189778] [2022-10-16 13:08:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:22,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:08:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:08:23,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:23,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137189778] [2022-10-16 13:08:23,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137189778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:23,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591657545] [2022-10-16 13:08:23,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:08:23,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:23,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:23,093 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:23,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 13:08:23,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:08:23,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:08:23,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 13:08:23,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3118 trivial. 0 not checked. [2022-10-16 13:08:23,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:08:23,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591657545] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:23,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:08:23,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 17 [2022-10-16 13:08:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478775174] [2022-10-16 13:08:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:08:23,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:08:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:08:23,672 INFO L87 Difference]: Start difference. First operand 3184 states and 4616 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:08:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:24,373 INFO L93 Difference]: Finished difference Result 6401 states and 9284 transitions. [2022-10-16 13:08:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:08:24,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 290 [2022-10-16 13:08:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:24,383 INFO L225 Difference]: With dead ends: 6401 [2022-10-16 13:08:24,383 INFO L226 Difference]: Without dead ends: 3264 [2022-10-16 13:08:24,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:08:24,392 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 61 mSDsluCounter, 5562 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 6370 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:24,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 6370 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:08:24,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2022-10-16 13:08:24,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3181. [2022-10-16 13:08:24,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2681 states have (on average 1.4140246176799702) internal successors, (3791), 2752 states have internal predecessors, (3791), 403 states have call successors, (403), 44 states have call predecessors, (403), 47 states have return successors, (418), 406 states have call predecessors, (418), 403 states have call successors, (418) [2022-10-16 13:08:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4612 transitions. [2022-10-16 13:08:24,992 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4612 transitions. Word has length 290 [2022-10-16 13:08:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:24,992 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 4612 transitions. [2022-10-16 13:08:24,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:08:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4612 transitions. [2022-10-16 13:08:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-10-16 13:08:24,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:24,995 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 7, 7, 6, 6, 6, 6, 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] [2022-10-16 13:08:25,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:25,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 13:08:25,210 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:25,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1525600791, now seen corresponding path program 1 times [2022-10-16 13:08:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:25,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513309721] [2022-10-16 13:08:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:08:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3135 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:25,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:25,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513309721] [2022-10-16 13:08:25,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513309721] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:25,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108703915] [2022-10-16 13:08:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:25,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:25,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:25,942 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:25,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 13:08:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:26,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 13:08:26,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3135 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:26,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3135 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:27,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108703915] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:27,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:27,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 13:08:27,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875978333] [2022-10-16 13:08:27,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 13:08:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 13:08:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2022-10-16 13:08:27,309 INFO L87 Difference]: Start difference. First operand 3181 states and 4612 transitions. Second operand has 18 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:37,144 INFO L93 Difference]: Finished difference Result 25075 states and 40754 transitions. [2022-10-16 13:08:37,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 13:08:37,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 296 [2022-10-16 13:08:37,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:37,208 INFO L225 Difference]: With dead ends: 25075 [2022-10-16 13:08:37,208 INFO L226 Difference]: Without dead ends: 25072 [2022-10-16 13:08:37,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2022-10-16 13:08:37,218 INFO L413 NwaCegarLoop]: 3920 mSDtfsCounter, 8470 mSDsluCounter, 12795 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 1781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9422 SdHoareTripleChecker+Valid, 16715 SdHoareTripleChecker+Invalid, 5469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:37,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9422 Valid, 16715 Invalid, 5469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1781 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-16 13:08:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25072 states. [2022-10-16 13:08:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25072 to 5369. [2022-10-16 13:08:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5369 states, 4521 states have (on average 1.4680380446803805) internal successors, (6637), 4612 states have internal predecessors, (6637), 751 states have call successors, (751), 44 states have call predecessors, (751), 47 states have return successors, (774), 754 states have call predecessors, (774), 751 states have call successors, (774) [2022-10-16 13:08:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 8162 transitions. [2022-10-16 13:08:38,623 INFO L78 Accepts]: Start accepts. Automaton has 5369 states and 8162 transitions. Word has length 296 [2022-10-16 13:08:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:38,624 INFO L495 AbstractCegarLoop]: Abstraction has 5369 states and 8162 transitions. [2022-10-16 13:08:38,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.823529411764707) internal successors, (150), 17 states have internal predecessors, (150), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5369 states and 8162 transitions. [2022-10-16 13:08:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-10-16 13:08:38,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:38,627 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 6, 6, 6, 6, 6, 6, 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 13:08:38,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:38,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:38,837 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:38,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 49063885, now seen corresponding path program 1 times [2022-10-16 13:08:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:38,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178297888] [2022-10-16 13:08:38,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:38,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:08:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:39,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:39,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178297888] [2022-10-16 13:08:39,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178297888] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:39,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224978262] [2022-10-16 13:08:39,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:39,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:39,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:39,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:39,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 13:08:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:39,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 13:08:39,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:40,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:40,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224978262] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:40,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:40,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2022-10-16 13:08:40,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741842519] [2022-10-16 13:08:40,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:40,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 13:08:40,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 13:08:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:08:40,201 INFO L87 Difference]: Start difference. First operand 5369 states and 8162 transitions. Second operand has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:41,391 INFO L93 Difference]: Finished difference Result 7262 states and 10878 transitions. [2022-10-16 13:08:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:08:41,392 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 297 [2022-10-16 13:08:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:41,400 INFO L225 Difference]: With dead ends: 7262 [2022-10-16 13:08:41,400 INFO L226 Difference]: Without dead ends: 3413 [2022-10-16 13:08:41,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:08:41,409 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 173 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:41,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 3836 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:08:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2022-10-16 13:08:41,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3373. [2022-10-16 13:08:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2873 states have (on average 1.3863557257222416) internal successors, (3983), 2944 states have internal predecessors, (3983), 403 states have call successors, (403), 44 states have call predecessors, (403), 47 states have return successors, (418), 406 states have call predecessors, (418), 403 states have call successors, (418) [2022-10-16 13:08:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 4804 transitions. [2022-10-16 13:08:41,991 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 4804 transitions. Word has length 297 [2022-10-16 13:08:41,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:41,991 INFO L495 AbstractCegarLoop]: Abstraction has 3373 states and 4804 transitions. [2022-10-16 13:08:41,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:08:41,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 4804 transitions. [2022-10-16 13:08:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-10-16 13:08:41,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:41,994 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:42,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:42,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:42,206 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1507356231, now seen corresponding path program 1 times [2022-10-16 13:08:42,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:42,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512992437] [2022-10-16 13:08:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:42,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:08:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6367 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 13:08:45,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:45,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512992437] [2022-10-16 13:08:45,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512992437] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:45,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527560173] [2022-10-16 13:08:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:45,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:45,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:45,707 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:45,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 13:08:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 13:08:46,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6367 backedges. 5774 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-10-16 13:08:48,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:08:48,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527560173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:48,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:08:48,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [49] total 83 [2022-10-16 13:08:48,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394551246] [2022-10-16 13:08:48,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:48,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 13:08:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 13:08:48,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1772, Invalid=5034, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 13:08:48,030 INFO L87 Difference]: Start difference. First operand 3373 states and 4804 transitions. Second operand has 35 states, 35 states have (on average 6.8) internal successors, (238), 35 states have internal predecessors, (238), 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 13:08:49,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:49,231 INFO L93 Difference]: Finished difference Result 5216 states and 7384 transitions. [2022-10-16 13:08:49,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 13:08:49,232 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 6.8) internal successors, (238), 35 states have internal predecessors, (238), 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 342 [2022-10-16 13:08:49,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:49,236 INFO L225 Difference]: With dead ends: 5216 [2022-10-16 13:08:49,237 INFO L226 Difference]: Without dead ends: 2103 [2022-10-16 13:08:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1772, Invalid=5034, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 13:08:49,246 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 924 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 2441 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:08:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2022-10-16 13:08:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2020. [2022-10-16 13:08:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1701 states have (on average 1.3345091122868902) internal successors, (2270), 1755 states have internal predecessors, (2270), 229 states have call successors, (229), 44 states have call predecessors, (229), 47 states have return successors, (240), 232 states have call predecessors, (240), 229 states have call successors, (240) [2022-10-16 13:08:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2739 transitions. [2022-10-16 13:08:49,746 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2739 transitions. Word has length 342 [2022-10-16 13:08:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:49,747 INFO L495 AbstractCegarLoop]: Abstraction has 2020 states and 2739 transitions. [2022-10-16 13:08:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.8) internal successors, (238), 35 states have internal predecessors, (238), 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 13:08:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2739 transitions. [2022-10-16 13:08:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-10-16 13:08:49,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:49,750 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 15, 15, 14, 14, 14, 14, 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] [2022-10-16 13:08:49,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 13:08:49,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:49,966 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:08:49,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash 412160599, now seen corresponding path program 2 times [2022-10-16 13:08:49,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:49,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357800993] [2022-10-16 13:08:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:49,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:08:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:51,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:51,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357800993] [2022-10-16 13:08:51,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357800993] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:08:51,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894100233] [2022-10-16 13:08:51,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:08:51,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:08:51,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:08:51,239 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:08:51,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 13:08:51,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:08:51,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:08:51,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 13:08:51,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:08:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:52,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:08:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:08:53,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894100233] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:08:53,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:08:53,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 33 [2022-10-16 13:08:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144509658] [2022-10-16 13:08:53,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:08:53,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 13:08:53,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:53,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 13:08:53,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:08:53,011 INFO L87 Difference]: Start difference. First operand 2020 states and 2739 transitions. Second operand has 34 states, 33 states have (on average 7.454545454545454) internal successors, (246), 33 states have internal predecessors, (246), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:09:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:14,387 INFO L93 Difference]: Finished difference Result 27882 states and 44307 transitions. [2022-10-16 13:09:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 13:09:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 7.454545454545454) internal successors, (246), 33 states have internal predecessors, (246), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 344 [2022-10-16 13:09:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:14,461 INFO L225 Difference]: With dead ends: 27882 [2022-10-16 13:09:14,461 INFO L226 Difference]: Without dead ends: 27879 [2022-10-16 13:09:14,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:09:14,470 INFO L413 NwaCegarLoop]: 7460 mSDtfsCounter, 17211 mSDsluCounter, 30136 mSDsCounter, 0 mSdLazyCounter, 9413 mSolverCounterSat, 3636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19271 SdHoareTripleChecker+Valid, 37596 SdHoareTripleChecker+Invalid, 13049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3636 IncrementalHoareTripleChecker+Valid, 9413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:14,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19271 Valid, 37596 Invalid, 13049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3636 Valid, 9413 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-10-16 13:09:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27879 states. [2022-10-16 13:09:15,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27879 to 3210. [2022-10-16 13:09:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2717 states have (on average 1.3967611336032388) internal successors, (3795), 2781 states have internal predecessors, (3795), 403 states have call successors, (403), 44 states have call predecessors, (403), 47 states have return successors, (418), 406 states have call predecessors, (418), 403 states have call successors, (418) [2022-10-16 13:09:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4616 transitions. [2022-10-16 13:09:15,806 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4616 transitions. Word has length 344 [2022-10-16 13:09:15,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:15,808 INFO L495 AbstractCegarLoop]: Abstraction has 3210 states and 4616 transitions. [2022-10-16 13:09:15,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.454545454545454) internal successors, (246), 33 states have internal predecessors, (246), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:09:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4616 transitions. [2022-10-16 13:09:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-10-16 13:09:15,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:15,811 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 14, 14, 14, 14, 14, 14, 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 13:09:15,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 13:09:16,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:16,024 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:09:16,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash -107843699, now seen corresponding path program 2 times [2022-10-16 13:09:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:16,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434069521] [2022-10-16 13:09:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:09:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:09:17,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:17,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434069521] [2022-10-16 13:09:17,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434069521] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:09:17,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099231679] [2022-10-16 13:09:17,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:09:17,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:17,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:09:17,075 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:09:17,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 13:09:17,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:09:17,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:09:17,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:09:17,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:09:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3587 trivial. 0 not checked. [2022-10-16 13:09:17,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:09:17,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099231679] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:09:17,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:09:17,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [18] total 19 [2022-10-16 13:09:17,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147439938] [2022-10-16 13:09:17,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:09:17,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:09:17,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:09:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:09:17,627 INFO L87 Difference]: Start difference. First operand 3210 states and 4616 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 13:09:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:19,367 INFO L93 Difference]: Finished difference Result 4615 states and 6879 transitions. [2022-10-16 13:09:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:09:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 345 [2022-10-16 13:09:19,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:19,381 INFO L225 Difference]: With dead ends: 4615 [2022-10-16 13:09:19,381 INFO L226 Difference]: Without dead ends: 4613 [2022-10-16 13:09:19,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:09:19,384 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 361 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:19,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1292 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:09:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4613 states. [2022-10-16 13:09:20,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4613 to 3314. [2022-10-16 13:09:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3314 states, 2809 states have (on average 1.405126379494482) internal successors, (3947), 2873 states have internal predecessors, (3947), 415 states have call successors, (415), 44 states have call predecessors, (415), 47 states have return successors, (430), 418 states have call predecessors, (430), 415 states have call successors, (430) [2022-10-16 13:09:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3314 states to 3314 states and 4792 transitions. [2022-10-16 13:09:20,537 INFO L78 Accepts]: Start accepts. Automaton has 3314 states and 4792 transitions. Word has length 345 [2022-10-16 13:09:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:20,538 INFO L495 AbstractCegarLoop]: Abstraction has 3314 states and 4792 transitions. [2022-10-16 13:09:20,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 13:09:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3314 states and 4792 transitions. [2022-10-16 13:09:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-10-16 13:09:20,539 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:20,540 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:09:20,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 13:09:20,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:20,741 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:09:20,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash 91584561, now seen corresponding path program 1 times [2022-10-16 13:09:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:20,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770734477] [2022-10-16 13:09:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:09:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3587 trivial. 0 not checked. [2022-10-16 13:09:21,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:21,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770734477] [2022-10-16 13:09:21,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770734477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:09:21,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:09:21,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:09:21,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175170855] [2022-10-16 13:09:21,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:09:21,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:09:21,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:09:21,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:09:21,154 INFO L87 Difference]: Start difference. First operand 3314 states and 4792 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 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 13:09:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:23,000 INFO L93 Difference]: Finished difference Result 3677 states and 5437 transitions. [2022-10-16 13:09:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:09:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 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 349 [2022-10-16 13:09:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:23,009 INFO L225 Difference]: With dead ends: 3677 [2022-10-16 13:09:23,009 INFO L226 Difference]: Without dead ends: 3672 [2022-10-16 13:09:23,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 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 13:09:23,011 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 204 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:23,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1972 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:09:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2022-10-16 13:09:24,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3426. [2022-10-16 13:09:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 2917 states have (on average 1.407953376756942) internal successors, (4107), 2981 states have internal predecessors, (4107), 419 states have call successors, (419), 44 states have call predecessors, (419), 47 states have return successors, (434), 422 states have call predecessors, (434), 419 states have call successors, (434) [2022-10-16 13:09:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4960 transitions. [2022-10-16 13:09:24,170 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4960 transitions. Word has length 349 [2022-10-16 13:09:24,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:24,171 INFO L495 AbstractCegarLoop]: Abstraction has 3426 states and 4960 transitions. [2022-10-16 13:09:24,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 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 13:09:24,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4960 transitions. [2022-10-16 13:09:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-10-16 13:09:24,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:24,173 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:09:24,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-16 13:09:24,173 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:09:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1455845514, now seen corresponding path program 1 times [2022-10-16 13:09:24,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:24,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974894218] [2022-10-16 13:09:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:24,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:09:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3587 trivial. 0 not checked. [2022-10-16 13:09:24,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:24,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974894218] [2022-10-16 13:09:24,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974894218] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:09:24,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:09:24,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:09:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713233018] [2022-10-16 13:09:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:09:24,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:09:24,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:09:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:09:24,553 INFO L87 Difference]: Start difference. First operand 3426 states and 4960 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 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 13:09:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:26,184 INFO L93 Difference]: Finished difference Result 3549 states and 5206 transitions. [2022-10-16 13:09:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:09:26,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 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 350 [2022-10-16 13:09:26,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:26,190 INFO L225 Difference]: With dead ends: 3549 [2022-10-16 13:09:26,191 INFO L226 Difference]: Without dead ends: 3544 [2022-10-16 13:09:26,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 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 13:09:26,192 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 493 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1491 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:09:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2022-10-16 13:09:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3421. [2022-10-16 13:09:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 2917 states have (on average 1.3956119300651355) internal successors, (4071), 2976 states have internal predecessors, (4071), 419 states have call successors, (419), 44 states have call predecessors, (419), 47 states have return successors, (434), 422 states have call predecessors, (434), 419 states have call successors, (434) [2022-10-16 13:09:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 4924 transitions. [2022-10-16 13:09:27,366 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 4924 transitions. Word has length 350 [2022-10-16 13:09:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:27,367 INFO L495 AbstractCegarLoop]: Abstraction has 3421 states and 4924 transitions. [2022-10-16 13:09:27,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 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 13:09:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 4924 transitions. [2022-10-16 13:09:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-10-16 13:09:27,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:27,370 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:09:27,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-10-16 13:09:27,370 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:09:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1312826658, now seen corresponding path program 1 times [2022-10-16 13:09:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:27,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524321037] [2022-10-16 13:09:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:27,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:09:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3589 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-16 13:09:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524321037] [2022-10-16 13:09:28,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524321037] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:09:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402875138] [2022-10-16 13:09:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:28,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:28,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:09:28,696 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:09:28,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 13:09:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:29,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2111 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 13:09:29,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:09:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3589 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-16 13:09:29,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:09:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3589 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-16 13:09:30,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402875138] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:09:30,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:09:30,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 33 [2022-10-16 13:09:30,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116614956] [2022-10-16 13:09:30,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:09:30,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 13:09:30,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:30,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 13:09:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 13:09:30,105 INFO L87 Difference]: Start difference. First operand 3421 states and 4924 transitions. Second operand has 33 states, 33 states have (on average 7.090909090909091) internal successors, (234), 32 states have internal predecessors, (234), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:09:31,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:31,389 INFO L93 Difference]: Finished difference Result 4779 states and 6745 transitions. [2022-10-16 13:09:31,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 13:09:31,390 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.090909090909091) internal successors, (234), 32 states have internal predecessors, (234), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 358 [2022-10-16 13:09:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:31,395 INFO L225 Difference]: With dead ends: 4779 [2022-10-16 13:09:31,395 INFO L226 Difference]: Without dead ends: 2355 [2022-10-16 13:09:31,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 13:09:31,401 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 256 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:31,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 3152 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:09:31,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2022-10-16 13:09:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2315. [2022-10-16 13:09:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 1993 states have (on average 1.3045659809332664) internal successors, (2600), 2042 states have internal predecessors, (2600), 237 states have call successors, (237), 44 states have call predecessors, (237), 47 states have return successors, (248), 240 states have call predecessors, (248), 237 states have call successors, (248) [2022-10-16 13:09:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3085 transitions. [2022-10-16 13:09:32,026 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3085 transitions. Word has length 358 [2022-10-16 13:09:32,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:32,027 INFO L495 AbstractCegarLoop]: Abstraction has 2315 states and 3085 transitions. [2022-10-16 13:09:32,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.090909090909091) internal successors, (234), 32 states have internal predecessors, (234), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:09:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3085 transitions. [2022-10-16 13:09:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-10-16 13:09:32,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:32,029 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 31, 31, 30, 30, 30, 30, 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] [2022-10-16 13:09:32,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 13:09:32,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 13:09:32,230 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:09:32,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:32,231 INFO L85 PathProgramCache]: Analyzing trace with hash -209120553, now seen corresponding path program 3 times [2022-10-16 13:09:32,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:32,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096809006] [2022-10-16 13:09:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:32,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:09:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-10-16 13:09:34,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:34,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096809006] [2022-10-16 13:09:34,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096809006] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:09:34,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609385593] [2022-10-16 13:09:34,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:09:34,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:34,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:09:34,775 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:09:34,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 13:09:35,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:09:35,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:09:35,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:09:35,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:09:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5725 trivial. 0 not checked. [2022-10-16 13:09:35,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:09:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5727 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5725 trivial. 0 not checked. [2022-10-16 13:09:35,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609385593] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:09:35,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:09:35,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 4, 4] total 38 [2022-10-16 13:09:35,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992915132] [2022-10-16 13:09:35,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:09:35,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 13:09:35,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 13:09:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=864, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:09:35,630 INFO L87 Difference]: Start difference. First operand 2315 states and 3085 transitions. Second operand has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 37 states have internal predecessors, (278), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)