/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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:18:34,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:18:34,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:18:34,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:18:34,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:18:34,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:18:34,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:18:34,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:18:34,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:18:34,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:18:34,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:18:34,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:18:34,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:18:34,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:18:34,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:18:34,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:18:34,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:18:34,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:18:34,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:18:34,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:18:34,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:18:34,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:18:34,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:18:34,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:18:34,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:18:34,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:18:34,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:18:34,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:18:34,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:18:34,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:18:34,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:18:34,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:18:34,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:18:34,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:18:34,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:18:34,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:18:34,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:18:34,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:18:34,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:18:34,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:18:34,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:18:34,648 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 13:18:34,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:18:34,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:18:34,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:18:34,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:18:34,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:18:34,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:18:34,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:18:34,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:18:34,714 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:18:34,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:18:34,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:18:34,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:18:34,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:18:34,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:18:34,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:18:34,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:18:34,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:18:34,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:18:34,717 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:18:34,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:18:34,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:18:34,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:18:34,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:18:34,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:18:34,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:18:34,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:18:34,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:18:34,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:18:34,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:18:34,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:18:34,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:18:34,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:18:34,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:18:34,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:18:35,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:18:35,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:18:35,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:18:35,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:18:35,158 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:18:35,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2022-10-16 13:18:35,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da78b68f/87a86b6810014a9ebd606e6b461ccd54/FLAGfd377734d [2022-10-16 13:18:36,037 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:18:36,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2022-10-16 13:18:36,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da78b68f/87a86b6810014a9ebd606e6b461ccd54/FLAGfd377734d [2022-10-16 13:18:36,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da78b68f/87a86b6810014a9ebd606e6b461ccd54 [2022-10-16 13:18:36,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:18:36,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:18:36,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:18:36,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:18:36,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:18:36,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:18:36" (1/1) ... [2022-10-16 13:18:36,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2651e643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:36, skipping insertion in model container [2022-10-16 13:18:36,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:18:36" (1/1) ... [2022-10-16 13:18:36,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:18:36,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:18:36,702 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2022-10-16 13:18:36,703 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2022-10-16 13:18:36,858 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2022-10-16 13:18:37,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:18:37,252 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:18:37,346 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2022-10-16 13:18:37,347 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2022-10-16 13:18:37,363 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2022-10-16 13:18:37,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:18:37,482 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:18:37,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37 WrapperNode [2022-10-16 13:18:37,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:18:37,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:18:37,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:18:37,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:18:37,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,599 INFO L138 Inliner]: procedures = 77, calls = 397, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 915 [2022-10-16 13:18:37,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:18:37,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:18:37,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:18:37,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:18:37,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:18:37,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:18:37,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:18:37,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:18:37,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (1/1) ... [2022-10-16 13:18:37,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:18:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:37,825 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 13:18:37,847 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 13:18:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 13:18:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 13:18:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:18:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-10-16 13:18:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-10-16 13:18:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:18:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-16 13:18:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-16 13:18:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-10-16 13:18:37,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-10-16 13:18:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2022-10-16 13:18:37,906 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2022-10-16 13:18:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:18:37,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:18:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:18:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2022-10-16 13:18:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2022-10-16 13:18:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:18:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2022-10-16 13:18:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2022-10-16 13:18:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:18:37,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:18:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:18:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:18:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-16 13:18:37,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-16 13:18:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:18:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:18:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:18:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2022-10-16 13:18:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2022-10-16 13:18:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:18:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:18:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:18:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:18:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-16 13:18:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-16 13:18:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-16 13:18:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-16 13:18:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:18:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:18:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:18:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-16 13:18:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-16 13:18:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:18:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:18:37,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:18:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:18:37,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:18:38,332 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:18:38,338 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:18:38,563 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:18:39,694 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:18:39,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:18:39,715 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:18:39,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:18:39 BoogieIcfgContainer [2022-10-16 13:18:39,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:18:39,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:18:39,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:18:39,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:18:39,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:18:36" (1/3) ... [2022-10-16 13:18:39,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c8fcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:18:39, skipping insertion in model container [2022-10-16 13:18:39,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:18:37" (2/3) ... [2022-10-16 13:18:39,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c8fcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:18:39, skipping insertion in model container [2022-10-16 13:18:39,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:18:39" (3/3) ... [2022-10-16 13:18:39,731 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2022-10-16 13:18:39,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:18:39,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-10-16 13:18:39,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:18:39,847 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;@7e82d986, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:18:39,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-10-16 13:18:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 364 states, 227 states have (on average 1.497797356828194) internal successors, (340), 292 states have internal predecessors, (340), 58 states have call successors, (58), 19 states have call predecessors, (58), 18 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-10-16 13:18:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 13:18:39,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:39,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:39,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:39,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:39,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2099341504, now seen corresponding path program 1 times [2022-10-16 13:18:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:39,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175185469] [2022-10-16 13:18:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:40,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:40,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175185469] [2022-10-16 13:18:40,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175185469] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:40,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:40,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:18:40,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637547865] [2022-10-16 13:18:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:40,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:18:40,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:18:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:18:40,561 INFO L87 Difference]: Start difference. First operand has 364 states, 227 states have (on average 1.497797356828194) internal successors, (340), 292 states have internal predecessors, (340), 58 states have call successors, (58), 19 states have call predecessors, (58), 18 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:41,308 INFO L93 Difference]: Finished difference Result 1016 states and 1288 transitions. [2022-10-16 13:18:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:18:41,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-10-16 13:18:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:41,332 INFO L225 Difference]: With dead ends: 1016 [2022-10-16 13:18:41,332 INFO L226 Difference]: Without dead ends: 630 [2022-10-16 13:18:41,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 13:18:41,344 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 390 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:41,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1099 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:18:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-10-16 13:18:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 559. [2022-10-16 13:18:41,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 378 states have (on average 1.5026455026455026) internal successors, (568), 439 states have internal predecessors, (568), 90 states have call successors, (90), 31 states have call predecessors, (90), 31 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-16 13:18:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 748 transitions. [2022-10-16 13:18:41,486 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 748 transitions. Word has length 23 [2022-10-16 13:18:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:41,487 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 748 transitions. [2022-10-16 13:18:41,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 748 transitions. [2022-10-16 13:18:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 13:18:41,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:41,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:41,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:18:41,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:41,494 INFO L85 PathProgramCache]: Analyzing trace with hash 215464983, now seen corresponding path program 1 times [2022-10-16 13:18:41,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:41,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673821375] [2022-10-16 13:18:41,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:41,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:41,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:41,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:41,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673821375] [2022-10-16 13:18:41,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673821375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:41,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:41,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:18:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407672998] [2022-10-16 13:18:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:41,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:18:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:41,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:18:41,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:18:41,845 INFO L87 Difference]: Start difference. First operand 559 states and 748 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:42,389 INFO L93 Difference]: Finished difference Result 1278 states and 1698 transitions. [2022-10-16 13:18:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:18:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-10-16 13:18:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:42,397 INFO L225 Difference]: With dead ends: 1278 [2022-10-16 13:18:42,397 INFO L226 Difference]: Without dead ends: 733 [2022-10-16 13:18:42,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 13:18:42,401 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 419 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:42,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 977 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:18:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-10-16 13:18:42,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 706. [2022-10-16 13:18:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 490 states have (on average 1.4448979591836735) internal successors, (708), 551 states have internal predecessors, (708), 109 states have call successors, (109), 47 states have call predecessors, (109), 47 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2022-10-16 13:18:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 926 transitions. [2022-10-16 13:18:42,472 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 926 transitions. Word has length 25 [2022-10-16 13:18:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:42,473 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 926 transitions. [2022-10-16 13:18:42,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 926 transitions. [2022-10-16 13:18:42,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 13:18:42,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:42,475 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:42,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:18:42,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:42,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1660354980, now seen corresponding path program 1 times [2022-10-16 13:18:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:42,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148558927] [2022-10-16 13:18:42,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:42,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:42,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:42,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:42,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148558927] [2022-10-16 13:18:42,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148558927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:42,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:42,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:18:42,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236140351] [2022-10-16 13:18:42,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:42,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:18:42,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:42,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:18:42,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:18:42,647 INFO L87 Difference]: Start difference. First operand 706 states and 926 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:43,107 INFO L93 Difference]: Finished difference Result 942 states and 1278 transitions. [2022-10-16 13:18:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:18:43,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-10-16 13:18:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:43,118 INFO L225 Difference]: With dead ends: 942 [2022-10-16 13:18:43,118 INFO L226 Difference]: Without dead ends: 940 [2022-10-16 13:18:43,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:18:43,121 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 141 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:43,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1076 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:18:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-10-16 13:18:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 716. [2022-10-16 13:18:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 500 states have (on average 1.44) internal successors, (720), 561 states have internal predecessors, (720), 109 states have call successors, (109), 47 states have call predecessors, (109), 47 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2022-10-16 13:18:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 938 transitions. [2022-10-16 13:18:43,184 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 938 transitions. Word has length 28 [2022-10-16 13:18:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:43,185 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 938 transitions. [2022-10-16 13:18:43,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 938 transitions. [2022-10-16 13:18:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 13:18:43,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:43,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:18:43,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1350178461, now seen corresponding path program 1 times [2022-10-16 13:18:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:43,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805745634] [2022-10-16 13:18:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:43,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:43,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805745634] [2022-10-16 13:18:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805745634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:43,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:43,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:18:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144675435] [2022-10-16 13:18:43,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:43,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:18:43,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:18:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:18:43,340 INFO L87 Difference]: Start difference. First operand 716 states and 938 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:43,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:43,916 INFO L93 Difference]: Finished difference Result 1744 states and 2264 transitions. [2022-10-16 13:18:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:18:43,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-10-16 13:18:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:43,925 INFO L225 Difference]: With dead ends: 1744 [2022-10-16 13:18:43,925 INFO L226 Difference]: Without dead ends: 1046 [2022-10-16 13:18:43,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 13:18:43,929 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 405 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:43,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1445 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:18:43,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-10-16 13:18:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 947. [2022-10-16 13:18:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 683 states have (on average 1.4568081991215227) internal successors, (995), 745 states have internal predecessors, (995), 143 states have call successors, (143), 61 states have call predecessors, (143), 61 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2022-10-16 13:18:44,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1281 transitions. [2022-10-16 13:18:44,038 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1281 transitions. Word has length 35 [2022-10-16 13:18:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:44,039 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1281 transitions. [2022-10-16 13:18:44,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:44,040 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1281 transitions. [2022-10-16 13:18:44,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 13:18:44,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:44,047 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] [2022-10-16 13:18:44,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:18:44,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:44,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash -510601164, now seen corresponding path program 1 times [2022-10-16 13:18:44,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:44,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843301228] [2022-10-16 13:18:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:44,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843301228] [2022-10-16 13:18:44,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843301228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:44,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:44,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:18:44,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161153557] [2022-10-16 13:18:44,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:44,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:18:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:44,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:18:44,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:18:44,517 INFO L87 Difference]: Start difference. First operand 947 states and 1281 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:45,069 INFO L93 Difference]: Finished difference Result 1813 states and 2450 transitions. [2022-10-16 13:18:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:18:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-10-16 13:18:45,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:45,076 INFO L225 Difference]: With dead ends: 1813 [2022-10-16 13:18:45,076 INFO L226 Difference]: Without dead ends: 872 [2022-10-16 13:18:45,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 13:18:45,081 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 45 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:45,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1364 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:18:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-10-16 13:18:45,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 463. [2022-10-16 13:18:45,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 312 states have (on average 1.4070512820512822) internal successors, (439), 372 states have internal predecessors, (439), 60 states have call successors, (60), 31 states have call predecessors, (60), 31 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-10-16 13:18:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 559 transitions. [2022-10-16 13:18:45,116 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 559 transitions. Word has length 37 [2022-10-16 13:18:45,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:45,117 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 559 transitions. [2022-10-16 13:18:45,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:45,117 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 559 transitions. [2022-10-16 13:18:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 13:18:45,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:45,119 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] [2022-10-16 13:18:45,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:18:45,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:45,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1871678093, now seen corresponding path program 1 times [2022-10-16 13:18:45,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512458751] [2022-10-16 13:18:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:45,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:45,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:45,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512458751] [2022-10-16 13:18:45,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512458751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:45,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:45,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:18:45,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958264608] [2022-10-16 13:18:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:45,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:18:45,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:45,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:18:45,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:18:45,369 INFO L87 Difference]: Start difference. First operand 463 states and 559 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:45,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:45,876 INFO L93 Difference]: Finished difference Result 913 states and 1105 transitions. [2022-10-16 13:18:45,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:18:45,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-10-16 13:18:45,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:45,880 INFO L225 Difference]: With dead ends: 913 [2022-10-16 13:18:45,880 INFO L226 Difference]: Without dead ends: 478 [2022-10-16 13:18:45,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:18:45,883 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 43 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:45,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1690 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:18:45,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-10-16 13:18:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 463. [2022-10-16 13:18:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 312 states have (on average 1.4038461538461537) internal successors, (438), 372 states have internal predecessors, (438), 60 states have call successors, (60), 31 states have call predecessors, (60), 31 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-10-16 13:18:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 558 transitions. [2022-10-16 13:18:45,913 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 558 transitions. Word has length 42 [2022-10-16 13:18:45,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:45,914 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 558 transitions. [2022-10-16 13:18:45,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 558 transitions. [2022-10-16 13:18:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 13:18:45,915 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:45,916 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] [2022-10-16 13:18:45,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:18:45,916 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 13:18:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1143425525, now seen corresponding path program 1 times [2022-10-16 13:18:45,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:45,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433437442] [2022-10-16 13:18:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:45,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:46,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:46,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:46,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433437442] [2022-10-16 13:18:46,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433437442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:46,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:46,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:18:46,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263015241] [2022-10-16 13:18:46,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:46,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:18:46,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:18:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:18:46,584 INFO L87 Difference]: Start difference. First operand 463 states and 558 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:47,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:47,807 INFO L93 Difference]: Finished difference Result 1332 states and 1621 transitions. [2022-10-16 13:18:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:18:47,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-10-16 13:18:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:47,814 INFO L225 Difference]: With dead ends: 1332 [2022-10-16 13:18:47,815 INFO L226 Difference]: Without dead ends: 900 [2022-10-16 13:18:47,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:18:47,818 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 418 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2671 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:47,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2671 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 13:18:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-10-16 13:18:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 803. [2022-10-16 13:18:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 579 states have (on average 1.4214162348877375) internal successors, (823), 640 states have internal predecessors, (823), 110 states have call successors, (110), 53 states have call predecessors, (110), 54 states have return successors, (113), 111 states have call predecessors, (113), 110 states have call successors, (113) [2022-10-16 13:18:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1046 transitions. [2022-10-16 13:18:47,883 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1046 transitions. Word has length 42 [2022-10-16 13:18:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:47,884 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1046 transitions. [2022-10-16 13:18:47,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:18:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1046 transitions. [2022-10-16 13:18:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 13:18:47,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:47,886 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] [2022-10-16 13:18:47,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:18:47,886 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:47,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash 73268740, now seen corresponding path program 1 times [2022-10-16 13:18:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:47,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901347057] [2022-10-16 13:18:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:18:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:18:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:48,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:48,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901347057] [2022-10-16 13:18:48,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901347057] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:48,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475995068] [2022-10-16 13:18:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:48,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:48,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:48,085 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 13:18:48,105 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 13:18:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:48,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:18:48,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:48,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:48,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475995068] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:48,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:48,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 13:18:48,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749567810] [2022-10-16 13:18:48,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:48,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:18:48,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:48,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:18:48,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:18:48,486 INFO L87 Difference]: Start difference. First operand 803 states and 1046 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 13:18:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:50,116 INFO L93 Difference]: Finished difference Result 2552 states and 3676 transitions. [2022-10-16 13:18:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:18:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2022-10-16 13:18:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:50,138 INFO L225 Difference]: With dead ends: 2552 [2022-10-16 13:18:50,139 INFO L226 Difference]: Without dead ends: 2551 [2022-10-16 13:18:50,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:18:50,143 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1160 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:50,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2777 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 13:18:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2022-10-16 13:18:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 1527. [2022-10-16 13:18:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1132 states have (on average 1.5795053003533568) internal successors, (1788), 1199 states have internal predecessors, (1788), 281 states have call successors, (281), 53 states have call predecessors, (281), 54 states have return successors, (284), 282 states have call predecessors, (284), 281 states have call successors, (284) [2022-10-16 13:18:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2353 transitions. [2022-10-16 13:18:50,367 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2353 transitions. Word has length 46 [2022-10-16 13:18:50,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:50,367 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 2353 transitions. [2022-10-16 13:18:50,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 13:18:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2353 transitions. [2022-10-16 13:18:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 13:18:50,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:50,369 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] [2022-10-16 13:18:50,412 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 13:18:50,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:50,580 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2023636034, now seen corresponding path program 1 times [2022-10-16 13:18:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:50,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163361640] [2022-10-16 13:18:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:18:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:18:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:50,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163361640] [2022-10-16 13:18:50,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163361640] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:50,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344566476] [2022-10-16 13:18:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:50,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:50,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:50,817 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 13:18:50,827 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 13:18:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:51,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:18:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:18:51,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:18:51,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344566476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:51,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:18:51,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 13:18:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488534037] [2022-10-16 13:18:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:51,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:18:51,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:18:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:18:51,117 INFO L87 Difference]: Start difference. First operand 1527 states and 2353 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:18:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:51,299 INFO L93 Difference]: Finished difference Result 1658 states and 2541 transitions. [2022-10-16 13:18:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:18:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-10-16 13:18:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:51,314 INFO L225 Difference]: With dead ends: 1658 [2022-10-16 13:18:51,314 INFO L226 Difference]: Without dead ends: 1657 [2022-10-16 13:18:51,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:18:51,319 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 351 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:51,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 964 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:18:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-10-16 13:18:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1526. [2022-10-16 13:18:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1132 states have (on average 1.5742049469964665) internal successors, (1782), 1198 states have internal predecessors, (1782), 281 states have call successors, (281), 53 states have call predecessors, (281), 54 states have return successors, (284), 282 states have call predecessors, (284), 281 states have call successors, (284) [2022-10-16 13:18:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2347 transitions. [2022-10-16 13:18:51,471 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2347 transitions. Word has length 47 [2022-10-16 13:18:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:51,472 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2347 transitions. [2022-10-16 13:18:51,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:18:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2347 transitions. [2022-10-16 13:18:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:18:51,473 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:51,474 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] [2022-10-16 13:18:51,517 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 13:18:51,688 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,SelfDestructingSolverStorable8 [2022-10-16 13:18:51,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:51,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1986444120, now seen corresponding path program 1 times [2022-10-16 13:18:51,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:51,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953122400] [2022-10-16 13:18:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:51,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:18:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:18:52,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:52,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953122400] [2022-10-16 13:18:52,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953122400] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:52,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824703237] [2022-10-16 13:18:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:52,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:52,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:52,942 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 13:18:52,964 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 13:18:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:53,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:18:53,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:53,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:18:53,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:18:53,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:18:53,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:18:53,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:18:53,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:18:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 13:18:53,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:53,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824703237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:53,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:18:53,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2022-10-16 13:18:53,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613984105] [2022-10-16 13:18:53,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:53,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 13:18:53,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:53,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 13:18:53,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=421, Unknown=1, NotChecked=0, Total=506 [2022-10-16 13:18:53,873 INFO L87 Difference]: Start difference. First operand 1526 states and 2347 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-10-16 13:18:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:58,834 INFO L93 Difference]: Finished difference Result 4780 states and 7226 transitions. [2022-10-16 13:18:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 13:18:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 49 [2022-10-16 13:18:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:58,864 INFO L225 Difference]: With dead ends: 4780 [2022-10-16 13:18:58,864 INFO L226 Difference]: Without dead ends: 3972 [2022-10-16 13:18:58,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=307, Invalid=1174, Unknown=1, NotChecked=0, Total=1482 [2022-10-16 13:18:58,883 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 2312 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 6419 SdHoareTripleChecker+Invalid, 4507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:58,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 6419 Invalid, 4507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [936 Valid, 3326 Invalid, 0 Unknown, 245 Unchecked, 3.8s Time] [2022-10-16 13:18:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-10-16 13:18:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2371. [2022-10-16 13:18:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 1779 states have (on average 1.5649241146711637) internal successors, (2784), 1851 states have internal predecessors, (2784), 441 states have call successors, (441), 88 states have call predecessors, (441), 92 states have return successors, (481), 443 states have call predecessors, (481), 441 states have call successors, (481) [2022-10-16 13:18:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3706 transitions. [2022-10-16 13:18:59,148 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3706 transitions. Word has length 49 [2022-10-16 13:18:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:59,148 INFO L495 AbstractCegarLoop]: Abstraction has 2371 states and 3706 transitions. [2022-10-16 13:18:59,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 4 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-10-16 13:18:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3706 transitions. [2022-10-16 13:18:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:18:59,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:59,151 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] [2022-10-16 13:18:59,197 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 13:18:59,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:59,364 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:18:59,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -976599394, now seen corresponding path program 2 times [2022-10-16 13:18:59,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:59,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621713297] [2022-10-16 13:18:59,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:59,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:19:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:19:00,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:00,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621713297] [2022-10-16 13:19:00,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621713297] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:00,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677579856] [2022-10-16 13:19:00,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:19:00,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:00,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:00,323 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 13:19:00,328 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 13:19:00,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:19:00,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:19:00,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 13:19:00,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:00,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:19:00,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:00,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:00,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:19:01,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:19:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:19:01,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:01,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677579856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:01,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:01,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2022-10-16 13:19:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863530397] [2022-10-16 13:19:01,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:01,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 13:19:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 13:19:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:19:01,263 INFO L87 Difference]: Start difference. First operand 2371 states and 3706 transitions. Second operand has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:19:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:06,014 INFO L93 Difference]: Finished difference Result 7177 states and 11078 transitions. [2022-10-16 13:19:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 13:19:06,015 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 49 [2022-10-16 13:19:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:06,065 INFO L225 Difference]: With dead ends: 7177 [2022-10-16 13:19:06,065 INFO L226 Difference]: Without dead ends: 6356 [2022-10-16 13:19:06,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=327, Invalid=1233, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 13:19:06,073 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 1862 mSDsluCounter, 6462 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 7330 SdHoareTripleChecker+Invalid, 4696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 442 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:06,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 7330 Invalid, 4696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [929 Valid, 3325 Invalid, 0 Unknown, 442 Unchecked, 3.5s Time] [2022-10-16 13:19:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-10-16 13:19:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 3893. [2022-10-16 13:19:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3893 states, 2952 states have (on average 1.5670731707317074) internal successors, (4626), 3032 states have internal predecessors, (4626), 732 states have call successors, (732), 145 states have call predecessors, (732), 150 states have return successors, (773), 735 states have call predecessors, (773), 732 states have call successors, (773) [2022-10-16 13:19:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 6131 transitions. [2022-10-16 13:19:06,494 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 6131 transitions. Word has length 49 [2022-10-16 13:19:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:06,494 INFO L495 AbstractCegarLoop]: Abstraction has 3893 states and 6131 transitions. [2022-10-16 13:19:06,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:19:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 6131 transitions. [2022-10-16 13:19:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 13:19:06,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:06,497 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] [2022-10-16 13:19:06,539 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 13:19:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:06,712 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:06,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1985404559, now seen corresponding path program 1 times [2022-10-16 13:19:06,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:06,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788901538] [2022-10-16 13:19:06,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:19:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:19:08,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788901538] [2022-10-16 13:19:08,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788901538] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230926568] [2022-10-16 13:19:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:08,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:08,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:08,175 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 13:19:08,201 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 13:19:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:08,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 13:19:08,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:08,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:19:08,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-10-16 13:19:08,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:08,754 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 13:19:08,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 13:19:08,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:08,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:19:08,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:08,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:08,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:09,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:19:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 5 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:19:09,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:09,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230926568] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:09,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:09,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2022-10-16 13:19:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644356120] [2022-10-16 13:19:09,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:09,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 13:19:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:09,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 13:19:09,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=683, Unknown=4, NotChecked=0, Total=812 [2022-10-16 13:19:09,393 INFO L87 Difference]: Start difference. First operand 3893 states and 6131 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 22 states have internal predecessors, (73), 6 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 13:19:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:14,569 INFO L93 Difference]: Finished difference Result 6392 states and 9882 transitions. [2022-10-16 13:19:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 13:19:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 22 states have internal predecessors, (73), 6 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 56 [2022-10-16 13:19:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:14,608 INFO L225 Difference]: With dead ends: 6392 [2022-10-16 13:19:14,608 INFO L226 Difference]: Without dead ends: 5571 [2022-10-16 13:19:14,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=455, Invalid=1991, Unknown=4, NotChecked=0, Total=2450 [2022-10-16 13:19:14,615 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2765 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 4096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:14,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2838 Valid, 3467 Invalid, 4096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 2499 Invalid, 0 Unknown, 233 Unchecked, 3.3s Time] [2022-10-16 13:19:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2022-10-16 13:19:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 1625. [2022-10-16 13:19:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1204 states have (on average 1.558970099667774) internal successors, (1877), 1271 states have internal predecessors, (1877), 298 states have call successors, (298), 63 states have call predecessors, (298), 64 states have return successors, (300), 298 states have call predecessors, (300), 298 states have call successors, (300) [2022-10-16 13:19:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2475 transitions. [2022-10-16 13:19:14,869 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2475 transitions. Word has length 56 [2022-10-16 13:19:14,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:14,870 INFO L495 AbstractCegarLoop]: Abstraction has 1625 states and 2475 transitions. [2022-10-16 13:19:14,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 22 states have internal predecessors, (73), 6 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 13:19:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2475 transitions. [2022-10-16 13:19:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:19:14,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:14,872 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:19:14,919 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 13:19:15,086 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 13:19:15,086 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash -816856163, now seen corresponding path program 1 times [2022-10-16 13:19:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:15,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064927036] [2022-10-16 13:19:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:19:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:19:15,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:15,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064927036] [2022-10-16 13:19:15,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064927036] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:15,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435574953] [2022-10-16 13:19:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:15,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:15,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:15,707 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 13:19:15,728 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 13:19:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:15,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 13:19:15,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:16,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:16,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:16,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:19:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:19:16,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:19:16,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435574953] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:19:16,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:19:16,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 19 [2022-10-16 13:19:16,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979573027] [2022-10-16 13:19:16,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:16,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 13:19:16,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 13:19:16,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:19:16,399 INFO L87 Difference]: Start difference. First operand 1625 states and 2475 transitions. Second operand has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-10-16 13:19:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:18,980 INFO L93 Difference]: Finished difference Result 4050 states and 6109 transitions. [2022-10-16 13:19:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:19:18,981 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 60 [2022-10-16 13:19:18,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:19,010 INFO L225 Difference]: With dead ends: 4050 [2022-10-16 13:19:19,011 INFO L226 Difference]: Without dead ends: 2471 [2022-10-16 13:19:19,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:19:19,018 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1390 mSDsluCounter, 4418 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 5152 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:19,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 5152 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-16 13:19:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2022-10-16 13:19:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2304. [2022-10-16 13:19:19,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1732 states have (on average 1.569284064665127) internal successors, (2718), 1802 states have internal predecessors, (2718), 428 states have call successors, (428), 84 states have call predecessors, (428), 85 states have return successors, (430), 429 states have call predecessors, (430), 428 states have call successors, (430) [2022-10-16 13:19:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3576 transitions. [2022-10-16 13:19:19,318 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3576 transitions. Word has length 60 [2022-10-16 13:19:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:19,318 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 3576 transitions. [2022-10-16 13:19:19,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2022-10-16 13:19:19,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3576 transitions. [2022-10-16 13:19:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 13:19:19,321 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:19,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:19:19,367 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 13:19:19,536 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 13:19:19,537 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:19,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:19,538 INFO L85 PathProgramCache]: Analyzing trace with hash -326708638, now seen corresponding path program 1 times [2022-10-16 13:19:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:19,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934165909] [2022-10-16 13:19:19,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:19:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:19:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:19:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:19:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:19:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:19:19,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:19,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934165909] [2022-10-16 13:19:19,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934165909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:19:19,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:19:19,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:19:19,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369640813] [2022-10-16 13:19:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:19:19,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:19:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:19,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:19:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:19:19,714 INFO L87 Difference]: Start difference. First operand 2304 states and 3576 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:19:20,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:20,448 INFO L93 Difference]: Finished difference Result 5312 states and 8290 transitions. [2022-10-16 13:19:20,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:19:20,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2022-10-16 13:19:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:20,463 INFO L225 Difference]: With dead ends: 5312 [2022-10-16 13:19:20,464 INFO L226 Difference]: Without dead ends: 3069 [2022-10-16 13:19:20,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:19:20,473 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 201 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:20,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1263 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:19:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-10-16 13:19:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2484. [2022-10-16 13:19:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1888 states have (on average 1.5476694915254237) internal successors, (2922), 1958 states have internal predecessors, (2922), 452 states have call successors, (452), 84 states have call predecessors, (452), 85 states have return successors, (454), 453 states have call predecessors, (454), 452 states have call successors, (454) [2022-10-16 13:19:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3828 transitions. [2022-10-16 13:19:20,847 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3828 transitions. Word has length 64 [2022-10-16 13:19:20,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:20,848 INFO L495 AbstractCegarLoop]: Abstraction has 2484 states and 3828 transitions. [2022-10-16 13:19:20,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:19:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3828 transitions. [2022-10-16 13:19:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 13:19:20,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:20,850 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] [2022-10-16 13:19:20,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 13:19:20,850 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1306051136, now seen corresponding path program 1 times [2022-10-16 13:19:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:20,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649816508] [2022-10-16 13:19:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:20,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:21,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 13:19:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:22,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:19:22,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:22,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649816508] [2022-10-16 13:19:22,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649816508] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:22,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275102812] [2022-10-16 13:19:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:22,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:22,183 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 13:19:22,207 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 13:19:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:22,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 13:19:22,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:22,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:22,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:22,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:22,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:22,694 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 13:19:22,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:19:22,966 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 13:19:22,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:23,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275102812] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:23,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:23,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 22 [2022-10-16 13:19:23,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758833158] [2022-10-16 13:19:23,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:23,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 13:19:23,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:23,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 13:19:23,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=599, Unknown=2, NotChecked=0, Total=702 [2022-10-16 13:19:23,178 INFO L87 Difference]: Start difference. First operand 2484 states and 3828 transitions. Second operand has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 20 states have internal predecessors, (97), 8 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2022-10-16 13:19:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:29,418 INFO L93 Difference]: Finished difference Result 7664 states and 11577 transitions. [2022-10-16 13:19:29,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 13:19:29,419 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 20 states have internal predecessors, (97), 8 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) Word has length 67 [2022-10-16 13:19:29,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:29,443 INFO L225 Difference]: With dead ends: 7664 [2022-10-16 13:19:29,443 INFO L226 Difference]: Without dead ends: 5965 [2022-10-16 13:19:29,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=297, Invalid=1341, Unknown=2, NotChecked=0, Total=1640 [2022-10-16 13:19:29,458 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 3395 mSDsluCounter, 6079 mSDsCounter, 0 mSdLazyCounter, 4166 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3476 SdHoareTripleChecker+Valid, 6890 SdHoareTripleChecker+Invalid, 5738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 4166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 231 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:29,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3476 Valid, 6890 Invalid, 5738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 4166 Invalid, 0 Unknown, 231 Unchecked, 4.8s Time] [2022-10-16 13:19:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2022-10-16 13:19:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 2484. [2022-10-16 13:19:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1888 states have (on average 1.5476694915254237) internal successors, (2922), 1958 states have internal predecessors, (2922), 452 states have call successors, (452), 84 states have call predecessors, (452), 85 states have return successors, (454), 453 states have call predecessors, (454), 452 states have call successors, (454) [2022-10-16 13:19:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3828 transitions. [2022-10-16 13:19:29,853 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3828 transitions. Word has length 67 [2022-10-16 13:19:29,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:29,853 INFO L495 AbstractCegarLoop]: Abstraction has 2484 states and 3828 transitions. [2022-10-16 13:19:29,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.409090909090909) internal successors, (97), 20 states have internal predecessors, (97), 8 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2022-10-16 13:19:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3828 transitions. [2022-10-16 13:19:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 13:19:29,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:29,856 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] [2022-10-16 13:19:29,901 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 13:19:30,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:30,071 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 13:19:30,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1780893702, now seen corresponding path program 2 times [2022-10-16 13:19:30,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:30,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790486206] [2022-10-16 13:19:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:30,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:19:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 13:19:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:19:31,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:31,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790486206] [2022-10-16 13:19:31,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790486206] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:31,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597371807] [2022-10-16 13:19:31,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:19:31,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:31,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:31,305 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 13:19:31,311 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 13:19:31,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:19:31,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:19:31,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:19:31,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:31,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:31,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:31,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 13:19:31,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:32,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 13:19:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:19:32,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:32,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597371807] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:32,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:32,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2022-10-16 13:19:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068565515] [2022-10-16 13:19:32,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:32,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 13:19:32,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 13:19:32,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=733, Unknown=3, NotChecked=0, Total=870 [2022-10-16 13:19:32,568 INFO L87 Difference]: Start difference. First operand 2484 states and 3828 transitions. Second operand has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 9 states have call successors, (10) [2022-10-16 13:19:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:42,164 INFO L93 Difference]: Finished difference Result 9530 states and 14333 transitions. [2022-10-16 13:19:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 13:19:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 9 states have call successors, (10) Word has length 67 [2022-10-16 13:19:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:42,189 INFO L225 Difference]: With dead ends: 9530 [2022-10-16 13:19:42,190 INFO L226 Difference]: Without dead ends: 7831 [2022-10-16 13:19:42,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=482, Invalid=2271, Unknown=3, NotChecked=0, Total=2756 [2022-10-16 13:19:42,197 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 4602 mSDsluCounter, 8986 mSDsCounter, 0 mSdLazyCounter, 6259 mSolverCounterSat, 2174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 10000 SdHoareTripleChecker+Invalid, 9037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 6259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 604 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:42,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4766 Valid, 10000 Invalid, 9037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2174 Valid, 6259 Invalid, 0 Unknown, 604 Unchecked, 7.5s Time] [2022-10-16 13:19:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7831 states. [2022-10-16 13:19:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 3225. [2022-10-16 13:19:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 2469 states have (on average 1.5520453624949373) internal successors, (3832), 2543 states have internal predecessors, (3832), 590 states have call successors, (590), 105 states have call predecessors, (590), 107 states have return successors, (593), 592 states have call predecessors, (593), 590 states have call successors, (593) [2022-10-16 13:19:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 5015 transitions. [2022-10-16 13:19:42,735 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 5015 transitions. Word has length 67 [2022-10-16 13:19:42,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:42,735 INFO L495 AbstractCegarLoop]: Abstraction has 3225 states and 5015 transitions. [2022-10-16 13:19:42,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 9 states have call successors, (10) [2022-10-16 13:19:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 5015 transitions. [2022-10-16 13:19:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 13:19:42,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:42,739 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:19:42,782 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 13:19:42,953 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 13:19:42,954 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:42,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -806212025, now seen corresponding path program 1 times [2022-10-16 13:19:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:42,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956695655] [2022-10-16 13:19:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:42,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:19:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:19:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:19:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:19:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:19:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:19:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 13:19:43,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:43,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956695655] [2022-10-16 13:19:43,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956695655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:19:43,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:19:43,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:19:43,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807397474] [2022-10-16 13:19:43,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:19:43,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:19:43,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:19:43,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:19:43,101 INFO L87 Difference]: Start difference. First operand 3225 states and 5015 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 13:19:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:44,104 INFO L93 Difference]: Finished difference Result 4358 states and 6854 transitions. [2022-10-16 13:19:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:19:44,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 73 [2022-10-16 13:19:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:44,120 INFO L225 Difference]: With dead ends: 4358 [2022-10-16 13:19:44,120 INFO L226 Difference]: Without dead ends: 4352 [2022-10-16 13:19:44,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:19:44,124 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 320 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:44,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1142 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:19:44,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4352 states. [2022-10-16 13:19:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4352 to 3252. [2022-10-16 13:19:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 2501 states have (on average 1.5193922431027589) internal successors, (3800), 2570 states have internal predecessors, (3800), 590 states have call successors, (590), 105 states have call predecessors, (590), 107 states have return successors, (593), 592 states have call predecessors, (593), 590 states have call successors, (593) [2022-10-16 13:19:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4983 transitions. [2022-10-16 13:19:44,615 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4983 transitions. Word has length 73 [2022-10-16 13:19:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:44,615 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 4983 transitions. [2022-10-16 13:19:44,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 13:19:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4983 transitions. [2022-10-16 13:19:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 13:19:44,617 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:44,617 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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 13:19:44,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 13:19:44,618 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash 777231371, now seen corresponding path program 1 times [2022-10-16 13:19:44,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:44,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904112117] [2022-10-16 13:19:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:44,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:19:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:19:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:19:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:19:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:19:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:19:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 13:19:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:44,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904112117] [2022-10-16 13:19:44,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904112117] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:44,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663156183] [2022-10-16 13:19:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:44,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:44,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:44,779 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 13:19:44,786 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 13:19:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:19:45,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 13:19:45,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:19:45,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663156183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:19:45,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:19:45,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 13:19:45,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085562443] [2022-10-16 13:19:45,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:19:45,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:19:45,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:45,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:19:45,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:19:45,040 INFO L87 Difference]: Start difference. First operand 3252 states and 4983 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (9), 1 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 13:19:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:45,660 INFO L93 Difference]: Finished difference Result 4828 states and 7323 transitions. [2022-10-16 13:19:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:19:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (9), 1 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 74 [2022-10-16 13:19:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:45,675 INFO L225 Difference]: With dead ends: 4828 [2022-10-16 13:19:45,675 INFO L226 Difference]: Without dead ends: 4822 [2022-10-16 13:19:45,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:19:45,677 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 373 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:45,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1267 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:19:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2022-10-16 13:19:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 3038. [2022-10-16 13:19:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 2325 states have (on average 1.4898924731182797) internal successors, (3464), 2388 states have internal predecessors, (3464), 558 states have call successors, (558), 105 states have call predecessors, (558), 107 states have return successors, (561), 560 states have call predecessors, (561), 558 states have call successors, (561) [2022-10-16 13:19:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4583 transitions. [2022-10-16 13:19:46,157 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4583 transitions. Word has length 74 [2022-10-16 13:19:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:46,157 INFO L495 AbstractCegarLoop]: Abstraction has 3038 states and 4583 transitions. [2022-10-16 13:19:46,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (9), 1 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 13:19:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4583 transitions. [2022-10-16 13:19:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 13:19:46,160 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:46,160 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:19:46,197 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 13:19:46,373 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,SelfDestructingSolverStorable17 [2022-10-16 13:19:46,374 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:19:46,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1396628041, now seen corresponding path program 1 times [2022-10-16 13:19:46,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:46,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892198632] [2022-10-16 13:19:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:46,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:19:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:19:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:19:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:19:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:19:47,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892198632] [2022-10-16 13:19:47,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892198632] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526591642] [2022-10-16 13:19:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:47,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:47,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:47,823 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 13:19:47,825 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 13:19:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:48,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 13:19:48,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:48,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:48,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 13:19:48,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:48,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 13:19:48,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 13:19:54,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-10-16 13:20:18,641 INFO L356 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-10-16 13:20:18,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-10-16 13:20:18,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:20:37,421 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 13:20:37,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2022-10-16 13:20:37,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-10-16 13:20:37,449 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:20:37,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:20:38,284 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ldv_zalloc_#Ultimate.meminit_#ptr#1.base_19| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_ldv_zalloc_#Ultimate.meminit_#ptr#1.base_19| ((as const (Array Int Int)) 0)) |c_~#ns558_isa_portlist~0.base|))) (or (< 0 (select .cse0 (+ |c_~#ns558_isa_portlist~0.offset| 4))) (= (select .cse0 |c_~#ns558_isa_portlist~0.offset|) 0)))) is different from false [2022-10-16 13:20:38,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526591642] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:20:38,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:20:38,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2022-10-16 13:20:38,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847704012] [2022-10-16 13:20:38,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:20:38,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 13:20:38,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:20:38,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 13:20:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1285, Unknown=17, NotChecked=74, Total=1560 [2022-10-16 13:20:38,291 INFO L87 Difference]: Start difference. First operand 3038 states and 4583 transitions. Second operand has 33 states, 33 states have (on average 3.1818181818181817) internal successors, (105), 31 states have internal predecessors, (105), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:21:16,743 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification. DAG size of input: 29 DAG size of output: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 13:22:07,175 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 36 DAG size of output: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 13:22:24,803 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 40 DAG size of output: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)