/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 [2022-10-15 21:17:21,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:17:21,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:17:21,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:17:21,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:17:21,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:17:21,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:17:21,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:17:21,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:17:22,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:17:22,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:17:22,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:17:22,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:17:22,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:17:22,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:17:22,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:17:22,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:17:22,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:17:22,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:17:22,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:17:22,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:17:22,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:17:22,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:17:22,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:17:22,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:17:22,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:17:22,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:17:22,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:17:22,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:17:22,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:17:22,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:17:22,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:17:22,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:17:22,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:17:22,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:17:22,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:17:22,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:17:22,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:17:22,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:17:22,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:17:22,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:17:22,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:17:22,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:17:22,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:17:22,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:17:22,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:17:22,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:17:22,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:17:22,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:17:22,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:17:22,174 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:17:22,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:17:22,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:17:22,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:17:22,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:17:22,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:17:22,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:17:22,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:17:22,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:17:22,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:17:22,178 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:17:22,178 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:17:22,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:17:22,178 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:17:22,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:17:22,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:17:22,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:17:22,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:17:22,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:17:22,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:17:22,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:17:22,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:17:22,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:17:22,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:17:22,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:17:22,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:17:22,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:17:22,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:17:22,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:17:22,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:17:22,735 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:17:22,737 INFO L432 ainManager$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 [2022-10-15 21:17:22,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce367a34/413d80105e8f49a9912e00953d8914ae/FLAG6131cb71c [2022-10-15 21:17:23,931 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:17:23,931 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 [2022-10-15 21:17:23,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce367a34/413d80105e8f49a9912e00953d8914ae/FLAG6131cb71c [2022-10-15 21:17:24,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce367a34/413d80105e8f49a9912e00953d8914ae [2022-10-15 21:17:24,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:17:24,048 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:17:24,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:17:24,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:17:24,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:17:24,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:17:24" (1/1) ... [2022-10-15 21:17:24,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6581518b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:24, skipping insertion in model container [2022-10-15 21:17:24,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:17:24" (1/1) ... [2022-10-15 21:17:24,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:17:24,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:17:24,758 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2022-10-15 21:17:24,759 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] [2022-10-15 21:17:24,863 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] [2022-10-15 21:17:25,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:17:25,318 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:17:25,425 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2022-10-15 21:17:25,426 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] [2022-10-15 21:17:25,464 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] [2022-10-15 21:17:25,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:17:25,635 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:17:25,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25 WrapperNode [2022-10-15 21:17:25,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:17:25,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:17:25,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:17:25,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:17:25,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,793 INFO L138 Inliner]: procedures = 77, calls = 397, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 915 [2022-10-15 21:17:25,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:17:25,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:17:25,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:17:25,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:17:25,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:25,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:17:25,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:17:25,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:17:25,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:17:25,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (1/1) ... [2022-10-15 21:17:26,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:17:26,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:26,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:17:26,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:17:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:17:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:17:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-10-15 21:17:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-10-15 21:17:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-15 21:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-15 21:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-10-15 21:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-10-15 21:17:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2022-10-15 21:17:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2022-10-15 21:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:17:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:17:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2022-10-15 21:17:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2022-10-15 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2022-10-15 21:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2022-10-15 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:17:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-15 21:17:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-15 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:17:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2022-10-15 21:17:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2022-10-15 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:17:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:17:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:17:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-15 21:17:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-15 21:17:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-15 21:17:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-15 21:17:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:17:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-15 21:17:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-15 21:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:17:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:17:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:17:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:17:26,562 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:17:26,566 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:17:26,713 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:17:27,837 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:17:27,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:17:27,863 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:17:27,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:17:27 BoogieIcfgContainer [2022-10-15 21:17:27,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:17:27,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:17:27,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:17:27,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:17:27,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:17:24" (1/3) ... [2022-10-15 21:17:27,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243549c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:17:27, skipping insertion in model container [2022-10-15 21:17:27,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:25" (2/3) ... [2022-10-15 21:17:27,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243549c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:17:27, skipping insertion in model container [2022-10-15 21:17:27,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:17:27" (3/3) ... [2022-10-15 21:17:27,886 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 [2022-10-15 21:17:27,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:17:27,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-10-15 21:17:28,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:17:28,038 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;@3bce6485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:17:28,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-10-15 21:17:28,046 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) [2022-10-15 21:17:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 21:17:28,060 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:28,061 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] [2022-10-15 21:17:28,063 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)] === [2022-10-15 21:17:28,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2099341504, now seen corresponding path program 1 times [2022-10-15 21:17:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:28,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004406511] [2022-10-15 21:17:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:28,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004406511] [2022-10-15 21:17:28,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004406511] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:28,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:28,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:17:28,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546345916] [2022-10-15 21:17:28,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:28,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:28,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:28,950 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) [2022-10-15 21:17:29,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:29,977 INFO L93 Difference]: Finished difference Result 1016 states and 1288 transitions. [2022-10-15 21:17:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:17:29,983 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 [2022-10-15 21:17:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:30,023 INFO L225 Difference]: With dead ends: 1016 [2022-10-15 21:17:30,023 INFO L226 Difference]: Without dead ends: 630 [2022-10-15 21:17:30,038 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 [2022-10-15 21:17:30,050 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 390 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:30,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1098 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 21:17:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-10-15 21:17:30,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 559. [2022-10-15 21:17:30,258 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) [2022-10-15 21:17:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 748 transitions. [2022-10-15 21:17:30,270 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 748 transitions. Word has length 23 [2022-10-15 21:17:30,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:30,271 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 748 transitions. [2022-10-15 21:17:30,272 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) [2022-10-15 21:17:30,273 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 748 transitions. [2022-10-15 21:17:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:17:30,280 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:30,287 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] [2022-10-15 21:17:30,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:17:30,289 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)] === [2022-10-15 21:17:30,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:30,290 INFO L85 PathProgramCache]: Analyzing trace with hash 215464983, now seen corresponding path program 1 times [2022-10-15 21:17:30,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:30,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325454144] [2022-10-15 21:17:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:30,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:30,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:30,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:30,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325454144] [2022-10-15 21:17:30,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325454144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:30,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:30,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:17:30,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168241302] [2022-10-15 21:17:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:30,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:30,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:30,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:30,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:30,554 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) [2022-10-15 21:17:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:31,250 INFO L93 Difference]: Finished difference Result 1278 states and 1698 transitions. [2022-10-15 21:17:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:17:31,251 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 [2022-10-15 21:17:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:31,259 INFO L225 Difference]: With dead ends: 1278 [2022-10-15 21:17:31,259 INFO L226 Difference]: Without dead ends: 733 [2022-10-15 21:17:31,261 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 [2022-10-15 21:17:31,263 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 419 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:31,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 974 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:17:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-10-15 21:17:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 706. [2022-10-15 21:17:31,316 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) [2022-10-15 21:17:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 926 transitions. [2022-10-15 21:17:31,321 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 926 transitions. Word has length 25 [2022-10-15 21:17:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:31,322 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 926 transitions. [2022-10-15 21:17:31,322 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) [2022-10-15 21:17:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 926 transitions. [2022-10-15 21:17:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:17:31,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:31,324 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] [2022-10-15 21:17:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:17:31,324 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)] === [2022-10-15 21:17:31,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:31,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1660354980, now seen corresponding path program 1 times [2022-10-15 21:17:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:31,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869515151] [2022-10-15 21:17:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:31,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:31,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:31,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869515151] [2022-10-15 21:17:31,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869515151] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:31,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:31,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:17:31,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647752133] [2022-10-15 21:17:31,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:31,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:31,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:31,545 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) [2022-10-15 21:17:32,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:32,051 INFO L93 Difference]: Finished difference Result 942 states and 1278 transitions. [2022-10-15 21:17:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:17:32,052 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 [2022-10-15 21:17:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:32,060 INFO L225 Difference]: With dead ends: 942 [2022-10-15 21:17:32,060 INFO L226 Difference]: Without dead ends: 940 [2022-10-15 21:17:32,062 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 [2022-10-15 21:17:32,063 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 141 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1077 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 [2022-10-15 21:17:32,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1077 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:17:32,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-10-15 21:17:32,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 716. [2022-10-15 21:17:32,143 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) [2022-10-15 21:17:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 938 transitions. [2022-10-15 21:17:32,149 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 938 transitions. Word has length 28 [2022-10-15 21:17:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:32,150 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 938 transitions. [2022-10-15 21:17:32,150 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) [2022-10-15 21:17:32,151 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 938 transitions. [2022-10-15 21:17:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 21:17:32,153 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:32,153 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] [2022-10-15 21:17:32,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:17:32,154 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)] === [2022-10-15 21:17:32,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1350178461, now seen corresponding path program 1 times [2022-10-15 21:17:32,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:32,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577669359] [2022-10-15 21:17:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:32,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:32,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577669359] [2022-10-15 21:17:32,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577669359] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:32,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:32,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:17:32,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160994443] [2022-10-15 21:17:32,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:32,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:32,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:32,347 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) [2022-10-15 21:17:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:33,108 INFO L93 Difference]: Finished difference Result 1744 states and 2264 transitions. [2022-10-15 21:17:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:17:33,109 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 [2022-10-15 21:17:33,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:33,123 INFO L225 Difference]: With dead ends: 1744 [2022-10-15 21:17:33,124 INFO L226 Difference]: Without dead ends: 1046 [2022-10-15 21:17:33,128 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 [2022-10-15 21:17:33,133 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 405 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:33,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1450 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:17:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-10-15 21:17:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 947. [2022-10-15 21:17:33,227 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) [2022-10-15 21:17:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1281 transitions. [2022-10-15 21:17:33,236 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1281 transitions. Word has length 35 [2022-10-15 21:17:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:33,237 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1281 transitions. [2022-10-15 21:17:33,237 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) [2022-10-15 21:17:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1281 transitions. [2022-10-15 21:17:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:17:33,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:33,244 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] [2022-10-15 21:17:33,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:17:33,245 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)] === [2022-10-15 21:17:33,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:33,246 INFO L85 PathProgramCache]: Analyzing trace with hash -510601164, now seen corresponding path program 1 times [2022-10-15 21:17:33,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:33,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658268976] [2022-10-15 21:17:33,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:33,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:33,704 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:33,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:33,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658268976] [2022-10-15 21:17:33,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658268976] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:33,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:33,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:17:33,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433407507] [2022-10-15 21:17:33,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:33,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:17:33,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:17:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:17:33,707 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) [2022-10-15 21:17:34,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:34,327 INFO L93 Difference]: Finished difference Result 1813 states and 2450 transitions. [2022-10-15 21:17:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:17:34,328 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 [2022-10-15 21:17:34,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:34,335 INFO L225 Difference]: With dead ends: 1813 [2022-10-15 21:17:34,336 INFO L226 Difference]: Without dead ends: 872 [2022-10-15 21:17:34,339 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 [2022-10-15 21:17:34,347 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, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:34,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1364 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 21:17:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-10-15 21:17:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 463. [2022-10-15 21:17:34,388 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) [2022-10-15 21:17:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 559 transitions. [2022-10-15 21:17:34,394 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 559 transitions. Word has length 37 [2022-10-15 21:17:34,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:34,396 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 559 transitions. [2022-10-15 21:17:34,396 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) [2022-10-15 21:17:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 559 transitions. [2022-10-15 21:17:34,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 21:17:34,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:34,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:17:34,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:17:34,402 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)] === [2022-10-15 21:17:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1871678093, now seen corresponding path program 1 times [2022-10-15 21:17:34,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:34,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508916361] [2022-10-15 21:17:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:34,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:34,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:34,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508916361] [2022-10-15 21:17:34,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508916361] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:34,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:34,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:17:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869659122] [2022-10-15 21:17:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:34,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:17:34,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:34,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:17:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:17:34,730 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) [2022-10-15 21:17:35,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:35,299 INFO L93 Difference]: Finished difference Result 913 states and 1105 transitions. [2022-10-15 21:17:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:17:35,300 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 [2022-10-15 21:17:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:35,304 INFO L225 Difference]: With dead ends: 913 [2022-10-15 21:17:35,305 INFO L226 Difference]: Without dead ends: 478 [2022-10-15 21:17:35,306 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 [2022-10-15 21:17:35,307 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 43 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:35,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1695 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 21:17:35,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-10-15 21:17:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 463. [2022-10-15 21:17:35,342 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) [2022-10-15 21:17:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 558 transitions. [2022-10-15 21:17:35,346 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 558 transitions. Word has length 42 [2022-10-15 21:17:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:35,347 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 558 transitions. [2022-10-15 21:17:35,347 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) [2022-10-15 21:17:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 558 transitions. [2022-10-15 21:17:35,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 21:17:35,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:35,349 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] [2022-10-15 21:17:35,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:17:35,350 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)] === [2022-10-15 21:17:35,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:35,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1143425525, now seen corresponding path program 1 times [2022-10-15 21:17:35,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:35,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599648433] [2022-10-15 21:17:35,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:35,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:36,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:36,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599648433] [2022-10-15 21:17:36,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599648433] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:36,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:36,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:17:36,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885698807] [2022-10-15 21:17:36,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:36,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:17:36,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:17:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:17:36,270 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) [2022-10-15 21:17:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:37,638 INFO L93 Difference]: Finished difference Result 1332 states and 1621 transitions. [2022-10-15 21:17:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:17:37,639 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 [2022-10-15 21:17:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:37,646 INFO L225 Difference]: With dead ends: 1332 [2022-10-15 21:17:37,646 INFO L226 Difference]: Without dead ends: 900 [2022-10-15 21:17:37,651 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 [2022-10-15 21:17:37,655 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 418 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:37,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2670 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-15 21:17:37,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-10-15 21:17:37,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 803. [2022-10-15 21:17:37,720 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) [2022-10-15 21:17:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1046 transitions. [2022-10-15 21:17:37,726 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1046 transitions. Word has length 42 [2022-10-15 21:17:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:37,727 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1046 transitions. [2022-10-15 21:17:37,727 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) [2022-10-15 21:17:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1046 transitions. [2022-10-15 21:17:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 21:17:37,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:37,732 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] [2022-10-15 21:17:37,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:17:37,732 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)] === [2022-10-15 21:17:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:37,734 INFO L85 PathProgramCache]: Analyzing trace with hash 73268740, now seen corresponding path program 1 times [2022-10-15 21:17:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:37,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817561989] [2022-10-15 21:17:37,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:37,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:37,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:17:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:17:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:37,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817561989] [2022-10-15 21:17:37,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817561989] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:37,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923741807] [2022-10-15 21:17:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:17:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:37,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:17:37,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:17:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:38,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:17:38,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:17:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:38,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:17:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:38,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923741807] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:17:38,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:17:38,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-15 21:17:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780011322] [2022-10-15 21:17:38,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:17:38,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:17:38,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:38,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:17:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:17:38,407 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) [2022-10-15 21:17:40,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:40,072 INFO L93 Difference]: Finished difference Result 2552 states and 3676 transitions. [2022-10-15 21:17:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:17:40,073 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 [2022-10-15 21:17:40,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:40,092 INFO L225 Difference]: With dead ends: 2552 [2022-10-15 21:17:40,092 INFO L226 Difference]: Without dead ends: 2551 [2022-10-15 21:17:40,094 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 [2022-10-15 21:17:40,095 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1160 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:40,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2774 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:17:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2022-10-15 21:17:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 1527. [2022-10-15 21:17:40,271 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) [2022-10-15 21:17:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2353 transitions. [2022-10-15 21:17:40,283 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2353 transitions. Word has length 46 [2022-10-15 21:17:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:40,283 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 2353 transitions. [2022-10-15 21:17:40,283 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) [2022-10-15 21:17:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2353 transitions. [2022-10-15 21:17:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:17:40,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:40,285 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] [2022-10-15 21:17:40,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:17:40,499 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 [2022-10-15 21:17:40,500 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)] === [2022-10-15 21:17:40,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:40,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2023636034, now seen corresponding path program 1 times [2022-10-15 21:17:40,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:40,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121157471] [2022-10-15 21:17:40,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:40,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:17:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:17:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:40,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:40,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121157471] [2022-10-15 21:17:40,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121157471] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:40,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772840744] [2022-10-15 21:17:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:40,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:17:40,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:40,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:17:40,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:17:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:41,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:17:41,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:17:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:17:41,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:17:41,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772840744] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:41,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:17:41,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 21:17:41,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507781654] [2022-10-15 21:17:41,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:41,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:17:41,052 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) [2022-10-15 21:17:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:41,240 INFO L93 Difference]: Finished difference Result 1658 states and 2541 transitions. [2022-10-15 21:17:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:17:41,241 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 [2022-10-15 21:17:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:41,253 INFO L225 Difference]: With dead ends: 1658 [2022-10-15 21:17:41,254 INFO L226 Difference]: Without dead ends: 1657 [2022-10-15 21:17:41,255 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 [2022-10-15 21:17:41,256 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:41,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 964 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:17:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-10-15 21:17:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1526. [2022-10-15 21:17:41,410 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) [2022-10-15 21:17:41,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2347 transitions. [2022-10-15 21:17:41,422 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2347 transitions. Word has length 47 [2022-10-15 21:17:41,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:41,423 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2347 transitions. [2022-10-15 21:17:41,423 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) [2022-10-15 21:17:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2347 transitions. [2022-10-15 21:17:41,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:17:41,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:41,424 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] [2022-10-15 21:17:41,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:17:41,638 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 [2022-10-15 21:17:41,639 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)] === [2022-10-15 21:17:41,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:41,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1986444120, now seen corresponding path program 1 times [2022-10-15 21:17:41,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:41,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680484208] [2022-10-15 21:17:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:17:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:17:43,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:43,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680484208] [2022-10-15 21:17:43,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680484208] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:43,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202855941] [2022-10-15 21:17:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:43,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:17:43,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:43,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:17:43,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:17:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:43,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 21:17:43,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:17:43,617 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 [2022-10-15 21:17:43,735 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 [2022-10-15 21:17:43,897 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 [2022-10-15 21:17:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:17:44,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:17:44,246 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 [2022-10-15 21:17:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:17:44,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:17:44,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202855941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:44,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 21:17:44,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2022-10-15 21:17:44,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839589222] [2022-10-15 21:17:44,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 21:17:44,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 21:17:44,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:44,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 21:17:44,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=421, Unknown=1, NotChecked=0, Total=506 [2022-10-15 21:17:44,489 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) [2022-10-15 21:17:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:50,495 INFO L93 Difference]: Finished difference Result 4780 states and 7226 transitions. [2022-10-15 21:17:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 21:17:50,496 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 [2022-10-15 21:17:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:50,527 INFO L225 Difference]: With dead ends: 4780 [2022-10-15 21:17:50,527 INFO L226 Difference]: Without dead ends: 3972 [2022-10-15 21:17:50,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=307, Invalid=1174, Unknown=1, NotChecked=0, Total=1482 [2022-10-15 21:17:50,533 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 2312 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 4553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:50,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 6421 Invalid, 4553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [925 Valid, 3383 Invalid, 0 Unknown, 245 Unchecked, 4.5s Time] [2022-10-15 21:17:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-10-15 21:17:50,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2371. [2022-10-15 21:17:50,793 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) [2022-10-15 21:17:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3706 transitions. [2022-10-15 21:17:50,806 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3706 transitions. Word has length 49 [2022-10-15 21:17:50,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:50,807 INFO L495 AbstractCegarLoop]: Abstraction has 2371 states and 3706 transitions. [2022-10-15 21:17:50,807 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) [2022-10-15 21:17:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3706 transitions. [2022-10-15 21:17:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:17:50,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:50,808 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] [2022-10-15 21:17:50,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:17:51,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:17:51,023 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)] === [2022-10-15 21:17:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash -976599394, now seen corresponding path program 2 times [2022-10-15 21:17:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:51,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201546700] [2022-10-15 21:17:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:17:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:52,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:17:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:17:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:52,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201546700] [2022-10-15 21:17:52,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201546700] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:52,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243397906] [2022-10-15 21:17:52,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:17:52,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:17:52,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:52,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:17:52,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:17:52,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:17:52,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:17:52,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-15 21:17:52,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:17:52,418 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 [2022-10-15 21:17:52,518 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 [2022-10-15 21:17:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:17:52,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:17:52,636 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 [2022-10-15 21:17:52,781 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 [2022-10-15 21:17:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:17:52,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:17:53,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243397906] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:17:53,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 21:17:53,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2022-10-15 21:17:53,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179177875] [2022-10-15 21:17:53,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 21:17:53,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 21:17:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 21:17:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=495, Unknown=2, NotChecked=0, Total=600 [2022-10-15 21:17:53,016 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) [2022-10-15 21:17:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:58,456 INFO L93 Difference]: Finished difference Result 7177 states and 11078 transitions. [2022-10-15 21:17:58,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 21:17:58,457 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 [2022-10-15 21:17:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:58,518 INFO L225 Difference]: With dead ends: 7177 [2022-10-15 21:17:58,518 INFO L226 Difference]: Without dead ends: 6356 [2022-10-15 21:17:58,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=327, Invalid=1231, Unknown=2, NotChecked=0, Total=1560 [2022-10-15 21:17:58,529 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 1862 mSDsluCounter, 6462 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 7328 SdHoareTripleChecker+Invalid, 4654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 440 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:58,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 7328 Invalid, 4654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [939 Valid, 3275 Invalid, 0 Unknown, 440 Unchecked, 4.0s Time] [2022-10-15 21:17:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-10-15 21:17:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 3893. [2022-10-15 21:17:59,085 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) [2022-10-15 21:17:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 6131 transitions. [2022-10-15 21:17:59,115 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 6131 transitions. Word has length 49 [2022-10-15 21:17:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:59,117 INFO L495 AbstractCegarLoop]: Abstraction has 3893 states and 6131 transitions. [2022-10-15 21:17:59,117 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) [2022-10-15 21:17:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 6131 transitions. [2022-10-15 21:17:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 21:17:59,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:59,119 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] [2022-10-15 21:17:59,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:17:59,333 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 [2022-10-15 21:17:59,334 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)] === [2022-10-15 21:17:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1985404559, now seen corresponding path program 1 times [2022-10-15 21:17:59,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:59,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034115648] [2022-10-15 21:17:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:59,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:18:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:18:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:18:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:01,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:18:01,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:01,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034115648] [2022-10-15 21:18:01,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034115648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:18:01,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511509131] [2022-10-15 21:18:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:01,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:18:01,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:18:01,064 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) [2022-10-15 21:18:01,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:18:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:01,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-15 21:18:01,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:18:01,399 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 [2022-10-15 21:18:01,505 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 [2022-10-15 21:18:01,510 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 [2022-10-15 21:18:01,623 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-15 21:18:01,624 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 [2022-10-15 21:18:01,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:18:01,661 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 [2022-10-15 21:18:01,750 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 [2022-10-15 21:18:01,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:18:01,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:18:02,030 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 [2022-10-15 21:18:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 5 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:18:02,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:18:02,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511509131] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:18:02,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 21:18:02,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2022-10-15 21:18:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129283400] [2022-10-15 21:18:02,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 21:18:02,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-15 21:18:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:02,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-15 21:18:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=683, Unknown=4, NotChecked=0, Total=812 [2022-10-15 21:18:02,347 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) [2022-10-15 21:18:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:08,053 INFO L93 Difference]: Finished difference Result 6392 states and 9882 transitions. [2022-10-15 21:18:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-15 21:18:08,053 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 [2022-10-15 21:18:08,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:08,099 INFO L225 Difference]: With dead ends: 6392 [2022-10-15 21:18:08,099 INFO L226 Difference]: Without dead ends: 5571 [2022-10-15 21:18:08,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=455, Invalid=1991, Unknown=4, NotChecked=0, Total=2450 [2022-10-15 21:18:08,108 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2765 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 4098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:08,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2838 Valid, 3467 Invalid, 4098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 2501 Invalid, 0 Unknown, 233 Unchecked, 3.7s Time] [2022-10-15 21:18:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2022-10-15 21:18:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 1625. [2022-10-15 21:18:08,422 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) [2022-10-15 21:18:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2475 transitions. [2022-10-15 21:18:08,432 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2475 transitions. Word has length 56 [2022-10-15 21:18:08,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:08,432 INFO L495 AbstractCegarLoop]: Abstraction has 1625 states and 2475 transitions. [2022-10-15 21:18:08,433 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) [2022-10-15 21:18:08,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2475 transitions. [2022-10-15 21:18:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 21:18:08,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:08,434 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]