/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--hid--hid-axff.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:17:35,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:17:35,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:17:35,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:17:35,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:17:35,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:17:35,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:17:35,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:17:35,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:17:35,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:17:35,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:17:35,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:17:35,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:17:35,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:17:35,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:17:35,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:17:35,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:17:35,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:17:35,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:17:35,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:17:35,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:17:35,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:17:35,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:17:35,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:17:35,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:17:35,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:17:35,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:17:35,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:17:35,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:17:35,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:17:35,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:17:35,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:17:35,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:17:35,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:17:35,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:17:35,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:17:35,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:17:35,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:17:35,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:17:35,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:17:35,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:17:35,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:17:35,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:17:35,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:17:35,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:17:35,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:17:35,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:17:35,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:17:35,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:17:35,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:17:35,870 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:17:35,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:17:35,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:17:35,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:17:35,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:17:35,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:17:35,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:17:35,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:17:35,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:17:35,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:17:35,873 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:17:35,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:17:35,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:17:35,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:17:35,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:17:35,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:17:35,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:17:35,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:17:35,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:17:35,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:17:35,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:17:35,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:17:35,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:17:35,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:17:35,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:17:35,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:17:36,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:17:36,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:17:36,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:17:36,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:17:36,308 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:17:36,310 INFO L432 ainManager$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--hid--hid-axff.ko-entry_point.cil.out.i [2022-10-16 13:17:36,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cddc246b/1e44134363294773aec284c50035414e/FLAG1d6396365 [2022-10-16 13:17:37,318 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:17:37,319 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--hid--hid-axff.ko-entry_point.cil.out.i [2022-10-16 13:17:37,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cddc246b/1e44134363294773aec284c50035414e/FLAG1d6396365 [2022-10-16 13:17:37,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cddc246b/1e44134363294773aec284c50035414e [2022-10-16 13:17:37,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:17:37,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:17:37,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:17:37,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:17:37,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:17:37,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:17:37" (1/1) ... [2022-10-16 13:17:37,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b46b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:37, skipping insertion in model container [2022-10-16 13:17:37,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:17:37" (1/1) ... [2022-10-16 13:17:37,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:17:37,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:17:38,434 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2395] [2022-10-16 13:17:38,435 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2396-2397] [2022-10-16 13:17:38,534 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--hid--hid-axff.ko-entry_point.cil.out.i[74571,74584] [2022-10-16 13:17:38,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:17:38,685 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:17:38,789 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2395] [2022-10-16 13:17:38,790 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2396-2397] [2022-10-16 13:17:38,808 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--hid--hid-axff.ko-entry_point.cil.out.i[74571,74584] [2022-10-16 13:17:38,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:17:38,949 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:17:38,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38 WrapperNode [2022-10-16 13:17:38,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:17:38,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:17:38,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:17:38,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:17:38,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:38,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,036 INFO L138 Inliner]: procedures = 76, calls = 196, calls flagged for inlining = 30, calls inlined = 26, statements flattened = 536 [2022-10-16 13:17:39,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:17:39,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:17:39,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:17:39,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:17:39,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,091 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:17:39,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:17:39,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:17:39,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:17:39,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (1/1) ... [2022-10-16 13:17:39,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:17:39,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:39,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:17:39,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:17:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:17:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_request [2022-10-16 13:17:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_request [2022-10-16 13:17:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:17:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:17:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:17:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:17:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:17:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:17:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:17:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:17:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:17:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:17:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_stop [2022-10-16 13:17:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_stop [2022-10-16 13:17:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ax_remove [2022-10-16 13:17:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ax_remove [2022-10-16 13:17:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_close [2022-10-16 13:17:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_close [2022-10-16 13:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:17:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:17:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:17:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:17:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:17:39,494 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:17:39,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:17:39,622 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:17:40,072 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:17:40,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:17:40,084 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:17:40,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:17:40 BoogieIcfgContainer [2022-10-16 13:17:40,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:17:40,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:17:40,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:17:40,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:17:40,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:17:37" (1/3) ... [2022-10-16 13:17:40,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484413d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:17:40, skipping insertion in model container [2022-10-16 13:17:40,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:17:38" (2/3) ... [2022-10-16 13:17:40,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484413d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:17:40, skipping insertion in model container [2022-10-16 13:17:40,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:17:40" (3/3) ... [2022-10-16 13:17:40,111 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--hid--hid-axff.ko-entry_point.cil.out.i [2022-10-16 13:17:40,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:17:40,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 13:17:40,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:17:40,266 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;@7af28d8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:17:40,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 13:17:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 117 states have (on average 1.393162393162393) internal successors, (163), 131 states have internal predecessors, (163), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 13:17:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 13:17:40,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:40,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:40,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2026397756, now seen corresponding path program 1 times [2022-10-16 13:17:40,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:40,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407193578] [2022-10-16 13:17:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:17:40,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:40,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407193578] [2022-10-16 13:17:40,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407193578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:40,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:40,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:40,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227106804] [2022-10-16 13:17:40,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:40,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:41,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:41,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:41,037 INFO L87 Difference]: Start difference. First operand has 155 states, 117 states have (on average 1.393162393162393) internal successors, (163), 131 states have internal predecessors, (163), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:17:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:41,313 INFO L93 Difference]: Finished difference Result 311 states and 401 transitions. [2022-10-16 13:17:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-10-16 13:17:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:41,331 INFO L225 Difference]: With dead ends: 311 [2022-10-16 13:17:41,332 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 13:17:41,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:41,352 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 74 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:41,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 416 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 13:17:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2022-10-16 13:17:41,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.358974358974359) internal successors, (159), 124 states have internal predecessors, (159), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:41,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 173 transitions. [2022-10-16 13:17:41,416 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 173 transitions. Word has length 23 [2022-10-16 13:17:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:41,416 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 173 transitions. [2022-10-16 13:17:41,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:17:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 173 transitions. [2022-10-16 13:17:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 13:17:41,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:41,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:41,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:17:41,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash -910693848, now seen corresponding path program 1 times [2022-10-16 13:17:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:41,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741953728] [2022-10-16 13:17:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:41,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:41,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:41,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741953728] [2022-10-16 13:17:41,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741953728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:41,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:41,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405547472] [2022-10-16 13:17:41,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:41,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:41,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:41,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:41,749 INFO L87 Difference]: Start difference. First operand 138 states and 173 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:17:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:41,958 INFO L93 Difference]: Finished difference Result 266 states and 335 transitions. [2022-10-16 13:17:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:41,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-10-16 13:17:41,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:41,967 INFO L225 Difference]: With dead ends: 266 [2022-10-16 13:17:41,968 INFO L226 Difference]: Without dead ends: 264 [2022-10-16 13:17:41,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:41,976 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 129 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:41,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 350 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-10-16 13:17:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 252. [2022-10-16 13:17:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 222 states have (on average 1.364864864864865) internal successors, (303), 229 states have internal predecessors, (303), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2022-10-16 13:17:42,036 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 41 [2022-10-16 13:17:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:42,037 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2022-10-16 13:17:42,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:17:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2022-10-16 13:17:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 13:17:42,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:42,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:42,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:17:42,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1683115960, now seen corresponding path program 1 times [2022-10-16 13:17:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292439759] [2022-10-16 13:17:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:42,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:42,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:42,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292439759] [2022-10-16 13:17:42,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292439759] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:42,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:42,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:42,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593603362] [2022-10-16 13:17:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:42,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:42,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:42,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:42,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:42,363 INFO L87 Difference]: Start difference. First operand 252 states and 327 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:42,548 INFO L93 Difference]: Finished difference Result 452 states and 603 transitions. [2022-10-16 13:17:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:42,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-10-16 13:17:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:42,554 INFO L225 Difference]: With dead ends: 452 [2022-10-16 13:17:42,554 INFO L226 Difference]: Without dead ends: 450 [2022-10-16 13:17:42,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:42,557 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 107 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:42,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 482 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-10-16 13:17:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 276. [2022-10-16 13:17:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 246 states have (on average 1.3780487804878048) internal successors, (339), 253 states have internal predecessors, (339), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 363 transitions. [2022-10-16 13:17:42,588 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 363 transitions. Word has length 54 [2022-10-16 13:17:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:42,589 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 363 transitions. [2022-10-16 13:17:42,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 363 transitions. [2022-10-16 13:17:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 13:17:42,592 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:42,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:42,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:17:42,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:42,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:42,593 INFO L85 PathProgramCache]: Analyzing trace with hash -636989507, now seen corresponding path program 1 times [2022-10-16 13:17:42,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:42,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243837183] [2022-10-16 13:17:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:42,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:42,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:42,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243837183] [2022-10-16 13:17:42,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243837183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:42,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:42,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:42,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429848806] [2022-10-16 13:17:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:42,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:42,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:42,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:42,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:42,818 INFO L87 Difference]: Start difference. First operand 276 states and 363 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:42,981 INFO L93 Difference]: Finished difference Result 484 states and 651 transitions. [2022-10-16 13:17:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:42,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-10-16 13:17:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:42,986 INFO L225 Difference]: With dead ends: 484 [2022-10-16 13:17:42,986 INFO L226 Difference]: Without dead ends: 482 [2022-10-16 13:17:42,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:42,988 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 103 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:42,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 477 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:17:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-10-16 13:17:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 310. [2022-10-16 13:17:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 287 states have internal predecessors, (383), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 407 transitions. [2022-10-16 13:17:43,018 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 407 transitions. Word has length 55 [2022-10-16 13:17:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:43,019 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 407 transitions. [2022-10-16 13:17:43,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 407 transitions. [2022-10-16 13:17:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 13:17:43,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:43,021 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:43,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:17:43,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:43,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash -612108867, now seen corresponding path program 1 times [2022-10-16 13:17:43,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:43,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82689268] [2022-10-16 13:17:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:43,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:43,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:43,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82689268] [2022-10-16 13:17:43,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82689268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:43,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:43,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:43,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451476484] [2022-10-16 13:17:43,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:43,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:43,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:43,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:43,190 INFO L87 Difference]: Start difference. First operand 310 states and 407 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:17:43,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:43,332 INFO L93 Difference]: Finished difference Result 490 states and 643 transitions. [2022-10-16 13:17:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:43,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 56 [2022-10-16 13:17:43,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:43,338 INFO L225 Difference]: With dead ends: 490 [2022-10-16 13:17:43,339 INFO L226 Difference]: Without dead ends: 338 [2022-10-16 13:17:43,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:43,348 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 41 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:43,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 407 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:17:43,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-10-16 13:17:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 332. [2022-10-16 13:17:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 302 states have (on average 1.3675496688741722) internal successors, (413), 309 states have internal predecessors, (413), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 437 transitions. [2022-10-16 13:17:43,386 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 437 transitions. Word has length 56 [2022-10-16 13:17:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:43,388 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 437 transitions. [2022-10-16 13:17:43,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:17:43,389 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 437 transitions. [2022-10-16 13:17:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 13:17:43,392 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:43,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:43,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:17:43,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:43,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2033411967, now seen corresponding path program 1 times [2022-10-16 13:17:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:43,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76957040] [2022-10-16 13:17:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:43,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:43,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76957040] [2022-10-16 13:17:43,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76957040] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:43,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:43,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:43,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3698623] [2022-10-16 13:17:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:43,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:43,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:43,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:43,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:43,603 INFO L87 Difference]: Start difference. First operand 332 states and 437 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:43,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:43,779 INFO L93 Difference]: Finished difference Result 558 states and 751 transitions. [2022-10-16 13:17:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:43,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-10-16 13:17:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:43,784 INFO L225 Difference]: With dead ends: 558 [2022-10-16 13:17:43,784 INFO L226 Difference]: Without dead ends: 556 [2022-10-16 13:17:43,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:43,786 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 106 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:43,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 521 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:17:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-10-16 13:17:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 350. [2022-10-16 13:17:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 320 states have (on average 1.365625) internal successors, (437), 327 states have internal predecessors, (437), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 461 transitions. [2022-10-16 13:17:43,814 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 461 transitions. Word has length 57 [2022-10-16 13:17:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:43,814 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 461 transitions. [2022-10-16 13:17:43,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 461 transitions. [2022-10-16 13:17:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 13:17:43,816 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:43,816 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:43,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:17:43,817 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:43,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:43,817 INFO L85 PathProgramCache]: Analyzing trace with hash 170993008, now seen corresponding path program 1 times [2022-10-16 13:17:43,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:43,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619457646] [2022-10-16 13:17:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:44,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:44,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619457646] [2022-10-16 13:17:44,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619457646] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:44,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511716119] [2022-10-16 13:17:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:44,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:44,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:44,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:17:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:44,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:44,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:44,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511716119] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:44,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:44,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:17:44,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170551505] [2022-10-16 13:17:44,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:44,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:17:44,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:44,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:17:44,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:44,435 INFO L87 Difference]: Start difference. First operand 350 states and 461 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:44,779 INFO L93 Difference]: Finished difference Result 1287 states and 1763 transitions. [2022-10-16 13:17:44,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:17:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 61 [2022-10-16 13:17:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:44,788 INFO L225 Difference]: With dead ends: 1287 [2022-10-16 13:17:44,788 INFO L226 Difference]: Without dead ends: 1286 [2022-10-16 13:17:44,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:44,790 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 470 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:44,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1413 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-10-16 13:17:44,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 520. [2022-10-16 13:17:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 490 states have (on average 1.389795918367347) internal successors, (681), 497 states have internal predecessors, (681), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 705 transitions. [2022-10-16 13:17:44,841 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 705 transitions. Word has length 61 [2022-10-16 13:17:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:44,841 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 705 transitions. [2022-10-16 13:17:44,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 705 transitions. [2022-10-16 13:17:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 13:17:44,843 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:44,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:44,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:45,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:45,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:45,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:45,059 INFO L85 PathProgramCache]: Analyzing trace with hash -210959358, now seen corresponding path program 1 times [2022-10-16 13:17:45,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:45,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863541439] [2022-10-16 13:17:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:45,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:45,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:45,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863541439] [2022-10-16 13:17:45,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863541439] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:45,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442827718] [2022-10-16 13:17:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:45,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:45,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:45,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:45,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:17:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:45,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:45,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:45,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:45,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442827718] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:45,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:45,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:17:45,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553858179] [2022-10-16 13:17:45,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:45,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:17:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:17:45,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:45,661 INFO L87 Difference]: Start difference. First operand 520 states and 705 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:45,965 INFO L93 Difference]: Finished difference Result 1749 states and 2449 transitions. [2022-10-16 13:17:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:17:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2022-10-16 13:17:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:45,981 INFO L225 Difference]: With dead ends: 1749 [2022-10-16 13:17:45,981 INFO L226 Difference]: Without dead ends: 1748 [2022-10-16 13:17:45,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:45,983 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 732 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:45,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 834 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2022-10-16 13:17:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 986. [2022-10-16 13:17:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 956 states have (on average 1.3859832635983265) internal successors, (1325), 963 states have internal predecessors, (1325), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1349 transitions. [2022-10-16 13:17:46,075 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1349 transitions. Word has length 62 [2022-10-16 13:17:46,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:46,076 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1349 transitions. [2022-10-16 13:17:46,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:46,076 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1349 transitions. [2022-10-16 13:17:46,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 13:17:46,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:46,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:46,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:46,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 13:17:46,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:46,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1005816119, now seen corresponding path program 1 times [2022-10-16 13:17:46,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:46,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510896925] [2022-10-16 13:17:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:46,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:46,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510896925] [2022-10-16 13:17:46,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510896925] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:46,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854753961] [2022-10-16 13:17:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:46,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:46,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:46,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:17:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:46,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:46,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:46,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854753961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:46,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:46,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:17:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38045917] [2022-10-16 13:17:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:46,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:46,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:46,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:46,752 INFO L87 Difference]: Start difference. First operand 986 states and 1349 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:46,879 INFO L93 Difference]: Finished difference Result 1336 states and 1829 transitions. [2022-10-16 13:17:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:46,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2022-10-16 13:17:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:46,888 INFO L225 Difference]: With dead ends: 1336 [2022-10-16 13:17:46,888 INFO L226 Difference]: Without dead ends: 1335 [2022-10-16 13:17:46,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:46,890 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 246 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:46,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 440 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:17:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-10-16 13:17:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 985. [2022-10-16 13:17:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 956 states have (on average 1.354602510460251) internal successors, (1295), 962 states have internal predecessors, (1295), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1319 transitions. [2022-10-16 13:17:46,969 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1319 transitions. Word has length 62 [2022-10-16 13:17:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:46,969 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1319 transitions. [2022-10-16 13:17:46,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1319 transitions. [2022-10-16 13:17:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 13:17:46,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:46,971 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, 1, 1, 1] [2022-10-16 13:17:47,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:47,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:47,185 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2050194646, now seen corresponding path program 1 times [2022-10-16 13:17:47,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:47,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042240733] [2022-10-16 13:17:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:47,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:47,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:47,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:47,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042240733] [2022-10-16 13:17:47,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042240733] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:47,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970841046] [2022-10-16 13:17:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:47,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:47,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:47,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:47,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:17:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:47,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:47,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:47,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:47,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970841046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:47,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:47,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:17:47,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083260445] [2022-10-16 13:17:47,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:47,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:47,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:47,671 INFO L87 Difference]: Start difference. First operand 985 states and 1319 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:47,787 INFO L93 Difference]: Finished difference Result 1318 states and 1781 transitions. [2022-10-16 13:17:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:47,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-10-16 13:17:47,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:47,796 INFO L225 Difference]: With dead ends: 1318 [2022-10-16 13:17:47,796 INFO L226 Difference]: Without dead ends: 1317 [2022-10-16 13:17:47,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:47,798 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 238 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:47,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 431 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:17:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-10-16 13:17:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 984. [2022-10-16 13:17:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 956 states have (on average 1.2981171548117154) internal successors, (1241), 961 states have internal predecessors, (1241), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1265 transitions. [2022-10-16 13:17:47,876 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1265 transitions. Word has length 63 [2022-10-16 13:17:47,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:47,876 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1265 transitions. [2022-10-16 13:17:47,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:47,877 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1265 transitions. [2022-10-16 13:17:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 13:17:47,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:47,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:47,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:48,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:48,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:48,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:48,099 INFO L85 PathProgramCache]: Analyzing trace with hash -868475260, now seen corresponding path program 1 times [2022-10-16 13:17:48,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:48,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814849969] [2022-10-16 13:17:48,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:48,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:48,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814849969] [2022-10-16 13:17:48,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814849969] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:48,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27100765] [2022-10-16 13:17:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:48,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:48,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:48,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:17:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:48,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:48,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:48,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:48,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27100765] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:48,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:48,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:17:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543988021] [2022-10-16 13:17:48,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:48,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:17:48,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:48,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:17:48,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:48,561 INFO L87 Difference]: Start difference. First operand 984 states and 1265 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:48,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:48,998 INFO L93 Difference]: Finished difference Result 2347 states and 3125 transitions. [2022-10-16 13:17:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:17:48,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-10-16 13:17:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:49,012 INFO L225 Difference]: With dead ends: 2347 [2022-10-16 13:17:49,012 INFO L226 Difference]: Without dead ends: 2346 [2022-10-16 13:17:49,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:49,014 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 495 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:49,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1135 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:17:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-10-16 13:17:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1268. [2022-10-16 13:17:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1240 states have (on average 1.2911290322580644) internal successors, (1601), 1245 states have internal predecessors, (1601), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1625 transitions. [2022-10-16 13:17:49,142 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1625 transitions. Word has length 64 [2022-10-16 13:17:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:49,142 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1625 transitions. [2022-10-16 13:17:49,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1625 transitions. [2022-10-16 13:17:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 13:17:49,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:49,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:49,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:49,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 13:17:49,359 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:49,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1152929128, now seen corresponding path program 1 times [2022-10-16 13:17:49,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:49,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428298575] [2022-10-16 13:17:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:49,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:49,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:49,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428298575] [2022-10-16 13:17:49,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428298575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:49,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970871535] [2022-10-16 13:17:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:49,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:49,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:49,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:49,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:17:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:49,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:49,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:49,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:49,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970871535] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:49,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:17:49,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987479687] [2022-10-16 13:17:49,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:49,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:49,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:49,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:49,837 INFO L87 Difference]: Start difference. First operand 1268 states and 1625 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:50,034 INFO L93 Difference]: Finished difference Result 1770 states and 2301 transitions. [2022-10-16 13:17:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2022-10-16 13:17:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:50,043 INFO L225 Difference]: With dead ends: 1770 [2022-10-16 13:17:50,044 INFO L226 Difference]: Without dead ends: 1769 [2022-10-16 13:17:50,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:50,045 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 246 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:50,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 474 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:17:50,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-10-16 13:17:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1267. [2022-10-16 13:17:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1240 states have (on average 1.2475806451612903) internal successors, (1547), 1244 states have internal predecessors, (1547), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:17:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1571 transitions. [2022-10-16 13:17:50,152 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1571 transitions. Word has length 65 [2022-10-16 13:17:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:50,152 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1571 transitions. [2022-10-16 13:17:50,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1571 transitions. [2022-10-16 13:17:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 13:17:50,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:50,155 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:50,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:50,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:50,368 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:50,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:50,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1070459935, now seen corresponding path program 2 times [2022-10-16 13:17:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:50,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483637452] [2022-10-16 13:17:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:50,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:17:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:17:50,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:50,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483637452] [2022-10-16 13:17:50,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483637452] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:50,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:50,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844193566] [2022-10-16 13:17:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:50,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:50,509 INFO L87 Difference]: Start difference. First operand 1267 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:17:50,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:50,657 INFO L93 Difference]: Finished difference Result 1914 states and 2376 transitions. [2022-10-16 13:17:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:50,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 74 [2022-10-16 13:17:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:50,661 INFO L225 Difference]: With dead ends: 1914 [2022-10-16 13:17:50,661 INFO L226 Difference]: Without dead ends: 630 [2022-10-16 13:17:50,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:50,665 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 106 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:50,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 300 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:17:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-10-16 13:17:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 626. [2022-10-16 13:17:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 610 states have (on average 1.2360655737704918) internal successors, (754), 612 states have internal predecessors, (754), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 768 transitions. [2022-10-16 13:17:50,744 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 768 transitions. Word has length 74 [2022-10-16 13:17:50,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:50,744 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 768 transitions. [2022-10-16 13:17:50,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:17:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 768 transitions. [2022-10-16 13:17:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:17:50,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:50,746 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:50,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 13:17:50,746 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:50,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:50,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1968753080, now seen corresponding path program 2 times [2022-10-16 13:17:50,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:50,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666994571] [2022-10-16 13:17:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:50,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:50,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666994571] [2022-10-16 13:17:50,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666994571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:50,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115516810] [2022-10-16 13:17:50,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:17:50,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:50,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:50,996 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:51,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:17:51,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:17:51,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:17:51,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 13:17:51,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-16 13:17:51,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:51,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115516810] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:51,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:51,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-10-16 13:17:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013842016] [2022-10-16 13:17:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:51,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:17:51,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:51,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:17:51,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:17:51,251 INFO L87 Difference]: Start difference. First operand 626 states and 768 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:17:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:51,447 INFO L93 Difference]: Finished difference Result 1304 states and 1613 transitions. [2022-10-16 13:17:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:17:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 82 [2022-10-16 13:17:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:51,452 INFO L225 Difference]: With dead ends: 1304 [2022-10-16 13:17:51,452 INFO L226 Difference]: Without dead ends: 726 [2022-10-16 13:17:51,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:51,454 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 218 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:51,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 632 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:17:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-10-16 13:17:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 628. [2022-10-16 13:17:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 612 states have (on average 1.2352941176470589) internal successors, (756), 614 states have internal predecessors, (756), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 770 transitions. [2022-10-16 13:17:51,514 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 770 transitions. Word has length 82 [2022-10-16 13:17:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:51,515 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 770 transitions. [2022-10-16 13:17:51,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:17:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 770 transitions. [2022-10-16 13:17:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 13:17:51,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:51,517 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:51,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:51,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:51,731 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 481416903, now seen corresponding path program 1 times [2022-10-16 13:17:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:51,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845416233] [2022-10-16 13:17:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:52,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:52,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845416233] [2022-10-16 13:17:52,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845416233] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:52,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514913769] [2022-10-16 13:17:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:52,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:52,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 13:17:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:52,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:17:52,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:52,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:52,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514913769] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:52,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:52,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:17:52,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255307247] [2022-10-16 13:17:52,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:52,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:17:52,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:52,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:17:52,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:52,412 INFO L87 Difference]: Start difference. First operand 628 states and 770 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:53,099 INFO L93 Difference]: Finished difference Result 1925 states and 2422 transitions. [2022-10-16 13:17:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:17:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2022-10-16 13:17:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:53,111 INFO L225 Difference]: With dead ends: 1925 [2022-10-16 13:17:53,111 INFO L226 Difference]: Without dead ends: 1924 [2022-10-16 13:17:53,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:53,117 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 960 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:53,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1966 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:17:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2022-10-16 13:17:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1330. [2022-10-16 13:17:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1314 states have (on average 1.2283105022831051) internal successors, (1614), 1316 states have internal predecessors, (1614), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1628 transitions. [2022-10-16 13:17:53,260 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1628 transitions. Word has length 85 [2022-10-16 13:17:53,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:53,260 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1628 transitions. [2022-10-16 13:17:53,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1628 transitions. [2022-10-16 13:17:53,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 13:17:53,262 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:53,262 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:53,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:53,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 13:17:53,477 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1403832286, now seen corresponding path program 1 times [2022-10-16 13:17:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:53,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908975971] [2022-10-16 13:17:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:53,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908975971] [2022-10-16 13:17:53,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908975971] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:53,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703778683] [2022-10-16 13:17:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:53,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:53,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:53,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:53,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:17:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:54,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:17:54,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:54,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:54,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703778683] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:54,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:54,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:17:54,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053388701] [2022-10-16 13:17:54,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:54,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:17:54,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:17:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:54,247 INFO L87 Difference]: Start difference. First operand 1330 states and 1628 transitions. Second operand has 14 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:55,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:55,031 INFO L93 Difference]: Finished difference Result 4286 states and 5491 transitions. [2022-10-16 13:17:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:17:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 86 [2022-10-16 13:17:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:55,056 INFO L225 Difference]: With dead ends: 4286 [2022-10-16 13:17:55,057 INFO L226 Difference]: Without dead ends: 4285 [2022-10-16 13:17:55,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:55,060 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1173 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:55,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1650 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:17:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4285 states. [2022-10-16 13:17:55,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4285 to 3696. [2022-10-16 13:17:55,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3680 states have (on average 1.197554347826087) internal successors, (4407), 3682 states have internal predecessors, (4407), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:55,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 4421 transitions. [2022-10-16 13:17:55,343 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 4421 transitions. Word has length 86 [2022-10-16 13:17:55,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:55,343 INFO L495 AbstractCegarLoop]: Abstraction has 3696 states and 4421 transitions. [2022-10-16 13:17:55,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 4421 transitions. [2022-10-16 13:17:55,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 13:17:55,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:55,346 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:55,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:55,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 13:17:55,561 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:55,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:55,561 INFO L85 PathProgramCache]: Analyzing trace with hash 463100768, now seen corresponding path program 1 times [2022-10-16 13:17:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:55,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408279999] [2022-10-16 13:17:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:55,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408279999] [2022-10-16 13:17:55,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408279999] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:55,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195978858] [2022-10-16 13:17:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:55,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:55,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:55,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:55,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:17:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:56,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:17:56,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:56,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:56,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195978858] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:56,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:56,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:17:56,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409866906] [2022-10-16 13:17:56,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:56,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:17:56,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:56,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:17:56,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:56,356 INFO L87 Difference]: Start difference. First operand 3696 states and 4421 transitions. Second operand has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:57,528 INFO L93 Difference]: Finished difference Result 8193 states and 10068 transitions. [2022-10-16 13:17:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:17:57,528 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2022-10-16 13:17:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:57,569 INFO L225 Difference]: With dead ends: 8193 [2022-10-16 13:17:57,569 INFO L226 Difference]: Without dead ends: 8192 [2022-10-16 13:17:57,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:17:57,573 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1174 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:57,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1745 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:17:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2022-10-16 13:17:58,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 5068. [2022-10-16 13:17:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5068 states, 5052 states have (on average 1.1864608076009502) internal successors, (5994), 5054 states have internal predecessors, (5994), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:17:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 6008 transitions. [2022-10-16 13:17:58,058 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 6008 transitions. Word has length 88 [2022-10-16 13:17:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:58,059 INFO L495 AbstractCegarLoop]: Abstraction has 5068 states and 6008 transitions. [2022-10-16 13:17:58,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:17:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 6008 transitions. [2022-10-16 13:17:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 13:17:58,065 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:58,065 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:58,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:17:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 13:17:58,279 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:17:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash 96514311, now seen corresponding path program 2 times [2022-10-16 13:17:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:58,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108177670] [2022-10-16 13:17:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:58,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:17:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:58,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:17:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:58,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108177670] [2022-10-16 13:17:58,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108177670] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:58,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796570966] [2022-10-16 13:17:58,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:17:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:58,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:17:58,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:17:59,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:17:59,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:17:59,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 13:17:59,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-10-16 13:17:59,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:59,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796570966] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:59,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:59,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2022-10-16 13:17:59,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572687856] [2022-10-16 13:17:59,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:59,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:59,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:59,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-10-16 13:17:59,096 INFO L87 Difference]: Start difference. First operand 5068 states and 6008 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:17:59,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:59,560 INFO L93 Difference]: Finished difference Result 10107 states and 11985 transitions. [2022-10-16 13:17:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:59,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 127 [2022-10-16 13:17:59,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:59,574 INFO L225 Difference]: With dead ends: 10107 [2022-10-16 13:17:59,574 INFO L226 Difference]: Without dead ends: 5087 [2022-10-16 13:17:59,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:17:59,583 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 171 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:59,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 281 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:17:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5087 states. [2022-10-16 13:18:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5087 to 5068. [2022-10-16 13:18:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5068 states, 5052 states have (on average 1.1862628661916073) internal successors, (5993), 5054 states have internal predecessors, (5993), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:18:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 6007 transitions. [2022-10-16 13:18:00,042 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 6007 transitions. Word has length 127 [2022-10-16 13:18:00,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:00,042 INFO L495 AbstractCegarLoop]: Abstraction has 5068 states and 6007 transitions. [2022-10-16 13:18:00,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:18:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 6007 transitions. [2022-10-16 13:18:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 13:18:00,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:00,049 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:00,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 13:18:00,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 13:18:00,264 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:18:00,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1522460603, now seen corresponding path program 1 times [2022-10-16 13:18:00,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:00,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37469370] [2022-10-16 13:18:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:18:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:00,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:00,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37469370] [2022-10-16 13:18:00,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37469370] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:00,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45671230] [2022-10-16 13:18:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:00,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:00,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:00,749 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:18:00,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:18:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:01,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:18:01,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:01,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:01,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45671230] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:01,423 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:01,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:18:01,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918455253] [2022-10-16 13:18:01,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:01,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:18:01,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:18:01,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:01,426 INFO L87 Difference]: Start difference. First operand 5068 states and 6007 transitions. Second operand has 26 states, 25 states have (on average 8.12) internal successors, (203), 25 states have internal predecessors, (203), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:03,687 INFO L93 Difference]: Finished difference Result 12203 states and 14693 transitions. [2022-10-16 13:18:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 13:18:03,688 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.12) internal successors, (203), 25 states have internal predecessors, (203), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 127 [2022-10-16 13:18:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:03,716 INFO L225 Difference]: With dead ends: 12203 [2022-10-16 13:18:03,716 INFO L226 Difference]: Without dead ends: 12202 [2022-10-16 13:18:03,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:03,720 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 3075 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:03,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 3433 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:18:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2022-10-16 13:18:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 10900. [2022-10-16 13:18:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10900 states, 10884 states have (on average 1.1845828739434032) internal successors, (12893), 10886 states have internal predecessors, (12893), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:18:04,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10900 states to 10900 states and 12907 transitions. [2022-10-16 13:18:04,635 INFO L78 Accepts]: Start accepts. Automaton has 10900 states and 12907 transitions. Word has length 127 [2022-10-16 13:18:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:04,635 INFO L495 AbstractCegarLoop]: Abstraction has 10900 states and 12907 transitions. [2022-10-16 13:18:04,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.12) internal successors, (203), 25 states have internal predecessors, (203), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 10900 states and 12907 transitions. [2022-10-16 13:18:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 13:18:04,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:04,641 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:04,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:18:04,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:04,857 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:18:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1706172352, now seen corresponding path program 1 times [2022-10-16 13:18:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:04,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811611260] [2022-10-16 13:18:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:04,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:18:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:05,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:05,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811611260] [2022-10-16 13:18:05,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811611260] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:05,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935271561] [2022-10-16 13:18:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:05,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:05,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:05,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:18:05,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 13:18:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:05,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:18:05,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:06,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:06,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935271561] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:06,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:06,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:18:06,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198102176] [2022-10-16 13:18:06,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:06,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:18:06,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:06,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:18:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:06,396 INFO L87 Difference]: Start difference. First operand 10900 states and 12907 transitions. Second operand has 26 states, 25 states have (on average 8.4) internal successors, (210), 25 states have internal predecessors, (210), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:09,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:09,142 INFO L93 Difference]: Finished difference Result 33626 states and 42356 transitions. [2022-10-16 13:18:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 13:18:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.4) internal successors, (210), 25 states have internal predecessors, (210), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 128 [2022-10-16 13:18:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:09,228 INFO L225 Difference]: With dead ends: 33626 [2022-10-16 13:18:09,228 INFO L226 Difference]: Without dead ends: 33625 [2022-10-16 13:18:09,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:09,239 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 3908 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:09,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3974 Valid, 2865 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:18:09,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33625 states. [2022-10-16 13:18:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33625 to 32334. [2022-10-16 13:18:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32334 states, 32318 states have (on average 1.1687604430967262) internal successors, (37772), 32320 states have internal predecessors, (37772), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:18:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32334 states to 32334 states and 37786 transitions. [2022-10-16 13:18:11,727 INFO L78 Accepts]: Start accepts. Automaton has 32334 states and 37786 transitions. Word has length 128 [2022-10-16 13:18:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:11,728 INFO L495 AbstractCegarLoop]: Abstraction has 32334 states and 37786 transitions. [2022-10-16 13:18:11,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.4) internal successors, (210), 25 states have internal predecessors, (210), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 32334 states and 37786 transitions. [2022-10-16 13:18:11,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 13:18:11,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:11,735 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:11,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 13:18:11,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-16 13:18:11,949 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:18:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1045881666, now seen corresponding path program 1 times [2022-10-16 13:18:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:11,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303863687] [2022-10-16 13:18:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:11,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:18:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:12,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:12,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303863687] [2022-10-16 13:18:12,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303863687] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:12,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680460122] [2022-10-16 13:18:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:12,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:12,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:12,589 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:18:12,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 13:18:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:12,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:18:12,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:13,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:13,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680460122] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:13,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:13,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:18:13,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962412812] [2022-10-16 13:18:13,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:13,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:18:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:13,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:18:13,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:13,353 INFO L87 Difference]: Start difference. First operand 32334 states and 37786 transitions. Second operand has 26 states, 25 states have (on average 8.24) internal successors, (206), 25 states have internal predecessors, (206), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:20,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:20,661 INFO L93 Difference]: Finished difference Result 71985 states and 86809 transitions. [2022-10-16 13:18:20,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 13:18:20,661 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.24) internal successors, (206), 25 states have internal predecessors, (206), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 130 [2022-10-16 13:18:20,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:20,880 INFO L225 Difference]: With dead ends: 71985 [2022-10-16 13:18:20,880 INFO L226 Difference]: Without dead ends: 71984 [2022-10-16 13:18:20,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:18:20,906 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 3070 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:20,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 3417 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:18:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71984 states. [2022-10-16 13:18:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71984 to 43864. [2022-10-16 13:18:24,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43864 states, 43848 states have (on average 1.1637702973909871) internal successors, (51029), 43850 states have internal predecessors, (51029), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:18:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43864 states to 43864 states and 51043 transitions. [2022-10-16 13:18:24,352 INFO L78 Accepts]: Start accepts. Automaton has 43864 states and 51043 transitions. Word has length 130 [2022-10-16 13:18:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:24,353 INFO L495 AbstractCegarLoop]: Abstraction has 43864 states and 51043 transitions. [2022-10-16 13:18:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.24) internal successors, (206), 25 states have internal predecessors, (206), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 43864 states and 51043 transitions. [2022-10-16 13:18:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-16 13:18:24,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:24,396 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:24,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 13:18:24,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:24,609 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:18:24,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:24,611 INFO L85 PathProgramCache]: Analyzing trace with hash 120938949, now seen corresponding path program 2 times [2022-10-16 13:18:24,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:24,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106597106] [2022-10-16 13:18:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:18:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:26,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106597106] [2022-10-16 13:18:26,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106597106] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578022178] [2022-10-16 13:18:26,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:18:26,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:26,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:26,337 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:18:26,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 13:18:26,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:18:26,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:18:26,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:18:26,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:26,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:28,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578022178] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:28,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:28,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:18:28,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696417223] [2022-10-16 13:18:28,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:28,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:18:28,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:18:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:18:28,008 INFO L87 Difference]: Start difference. First operand 43864 states and 51043 transitions. Second operand has 50 states, 49 states have (on average 7.571428571428571) internal successors, (371), 49 states have internal predecessors, (371), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:36,708 INFO L93 Difference]: Finished difference Result 94103 states and 110321 transitions. [2022-10-16 13:18:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 13:18:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 7.571428571428571) internal successors, (371), 49 states have internal predecessors, (371), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 211 [2022-10-16 13:18:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:36,891 INFO L225 Difference]: With dead ends: 94103 [2022-10-16 13:18:36,891 INFO L226 Difference]: Without dead ends: 94102 [2022-10-16 13:18:36,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:18:36,912 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 8211 mSDsluCounter, 5139 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8349 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:36,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8349 Valid, 5584 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 13:18:36,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94102 states. [2022-10-16 13:18:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94102 to 91384. [2022-10-16 13:18:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91384 states, 91368 states have (on average 1.1634379651519131) internal successors, (106301), 91370 states have internal predecessors, (106301), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:18:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91384 states to 91384 states and 106315 transitions. [2022-10-16 13:18:42,523 INFO L78 Accepts]: Start accepts. Automaton has 91384 states and 106315 transitions. Word has length 211 [2022-10-16 13:18:42,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:42,524 INFO L495 AbstractCegarLoop]: Abstraction has 91384 states and 106315 transitions. [2022-10-16 13:18:42,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 7.571428571428571) internal successors, (371), 49 states have internal predecessors, (371), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:18:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 91384 states and 106315 transitions. [2022-10-16 13:18:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-16 13:18:42,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:42,582 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:42,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 13:18:42,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:42,798 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:18:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:42,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1330717440, now seen corresponding path program 2 times [2022-10-16 13:18:42,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:42,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845138816] [2022-10-16 13:18:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:18:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:44,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:44,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845138816] [2022-10-16 13:18:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845138816] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:44,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681824563] [2022-10-16 13:18:44,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:18:44,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:44,423 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:18:44,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 13:18:44,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:18:44,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:18:45,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:18:45,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:45,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:18:46,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681824563] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:46,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:46,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:18:46,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136227494] [2022-10-16 13:18:46,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:46,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:18:46,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:46,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:18:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:18:46,203 INFO L87 Difference]: Start difference. First operand 91384 states and 106315 transitions. Second operand has 50 states, 49 states have (on average 7.714285714285714) internal successors, (378), 49 states have internal predecessors, (378), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:19:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:03,983 INFO L93 Difference]: Finished difference Result 276338 states and 345068 transitions. [2022-10-16 13:19:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 13:19:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 7.714285714285714) internal successors, (378), 49 states have internal predecessors, (378), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 212 [2022-10-16 13:19:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:04,728 INFO L225 Difference]: With dead ends: 276338 [2022-10-16 13:19:04,729 INFO L226 Difference]: Without dead ends: 276337 [2022-10-16 13:19:04,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:19:04,800 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 6809 mSDsluCounter, 6173 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6947 SdHoareTripleChecker+Valid, 6709 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:04,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6947 Valid, 6709 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 13:19:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276337 states. [2022-10-16 13:19:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276337 to 273642. [2022-10-16 13:19:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273642 states, 273626 states have (on average 1.1555334653870613) internal successors, (316184), 273628 states have internal predecessors, (316184), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-16 13:19:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273642 states to 273642 states and 316198 transitions. [2022-10-16 13:19:22,388 INFO L78 Accepts]: Start accepts. Automaton has 273642 states and 316198 transitions. Word has length 212 [2022-10-16 13:19:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:22,389 INFO L495 AbstractCegarLoop]: Abstraction has 273642 states and 316198 transitions. [2022-10-16 13:19:22,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 7.714285714285714) internal successors, (378), 49 states have internal predecessors, (378), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:19:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 273642 states and 316198 transitions. [2022-10-16 13:19:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-16 13:19:22,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:22,427 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:19:22,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 13:19:22,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 13:19:22,643 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:19:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1080789502, now seen corresponding path program 2 times [2022-10-16 13:19:22,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:22,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528172234] [2022-10-16 13:19:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:19:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:19:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:24,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:19:24,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528172234] [2022-10-16 13:19:24,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528172234] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683628643] [2022-10-16 13:19:24,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:19:24,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:24,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:24,645 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:19:24,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 13:19:25,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:19:25,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:19:25,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:19:25,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:19:25,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 13:19:26,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683628643] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:19:26,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:19:26,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:19:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210900195] [2022-10-16 13:19:26,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:26,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:19:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:19:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:19:26,444 INFO L87 Difference]: Start difference. First operand 273642 states and 316198 transitions. Second operand has 50 states, 49 states have (on average 7.63265306122449) internal successors, (374), 49 states have internal predecessors, (374), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)