/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:02:24,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:02:24,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:02:24,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:02:24,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:02:24,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:02:24,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:02:24,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:02:24,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:02:24,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:02:24,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:02:24,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:02:24,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:02:24,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:02:24,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:02:24,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:02:24,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:02:24,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:02:24,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:02:24,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:02:24,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:02:24,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:02:24,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:02:24,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:02:24,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:02:24,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:02:24,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:02:24,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:02:24,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:02:24,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:02:24,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:02:24,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:02:24,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:02:24,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:02:24,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:02:24,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:02:24,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:02:24,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:02:24,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:02:24,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:02:24,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:02:24,242 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 13:02:24,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:02:24,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:02:24,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:02:24,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:02:24,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:02:24,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:02:24,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:02:24,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:02:24,286 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:02:24,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:02:24,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:02:24,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:02:24,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:02:24,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:02:24,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:02:24,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:02:24,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:02:24,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:02:24,291 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:02:24,291 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:02:24,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:02:24,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:02:24,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:02:24,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:02:24,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:02:24,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:02:24,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:02:24,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:02:24,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:02:24,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:02:24,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:02:24,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:02:24,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:02:24,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:02:24,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:02:24,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:02:24,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:02:24,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:02:24,751 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:02:24,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:02:24,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d7ce1e8/3d009a251604438f9d0485118c880ddb/FLAG26d1bbdd2 [2022-10-16 13:02:25,834 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:02:25,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:02:25,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d7ce1e8/3d009a251604438f9d0485118c880ddb/FLAG26d1bbdd2 [2022-10-16 13:02:26,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d7ce1e8/3d009a251604438f9d0485118c880ddb [2022-10-16 13:02:26,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:02:26,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:02:26,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:02:26,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:02:26,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:02:26,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:02:26" (1/1) ... [2022-10-16 13:02:26,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ce4766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:26, skipping insertion in model container [2022-10-16 13:02:26,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:02:26" (1/1) ... [2022-10-16 13:02:26,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:02:26,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:02:27,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[149288,149301] [2022-10-16 13:02:27,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:02:27,673 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:02:27,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[149288,149301] [2022-10-16 13:02:28,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:02:28,086 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:02:28,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28 WrapperNode [2022-10-16 13:02:28,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:02:28,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:02:28,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:02:28,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:02:28,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,310 INFO L138 Inliner]: procedures = 102, calls = 502, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 1402 [2022-10-16 13:02:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:02:28,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:02:28,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:02:28,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:02:28,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:02:28,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:02:28,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:02:28,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:02:28,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (1/1) ... [2022-10-16 13:02:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:02:28,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:28,494 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 13:02:28,517 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 13:02:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:02:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:02:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:02:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 13:02:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-16 13:02:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:02:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:02:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2022-10-16 13:02:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2022-10-16 13:02:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-16 13:02:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-16 13:02:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:02:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:02:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-16 13:02:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-16 13:02:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:02:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:02:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:02:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-10-16 13:02:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-10-16 13:02:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:02:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:02:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:02:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:02:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 13:02:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 13:02:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:02:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:02:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-16 13:02:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-16 13:02:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:02:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-10-16 13:02:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-10-16 13:02:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:02:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-16 13:02:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-16 13:02:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:02:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:02:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-16 13:02:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-16 13:02:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 13:02:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 13:02:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-16 13:02:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-16 13:02:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:02:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-10-16 13:02:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-10-16 13:02:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-16 13:02:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-16 13:02:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-10-16 13:02:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-10-16 13:02:28,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:02:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:02:29,028 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:02:29,032 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:02:29,300 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:02:30,689 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:02:30,705 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:02:30,706 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:02:30,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:02:30 BoogieIcfgContainer [2022-10-16 13:02:30,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:02:30,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:02:30,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:02:30,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:02:30,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:02:26" (1/3) ... [2022-10-16 13:02:30,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524b9b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:02:30, skipping insertion in model container [2022-10-16 13:02:30,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:02:28" (2/3) ... [2022-10-16 13:02:30,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524b9b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:02:30, skipping insertion in model container [2022-10-16 13:02:30,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:02:30" (3/3) ... [2022-10-16 13:02:30,721 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2022-10-16 13:02:30,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:02:30,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-10-16 13:02:30,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:02:30,846 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;@600ca6de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:02:30,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-10-16 13:02:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 401 states have (on average 1.5511221945137157) internal successors, (622), 474 states have internal predecessors, (622), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-10-16 13:02:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 13:02:30,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:30,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:30,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:30,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1139042897, now seen corresponding path program 1 times [2022-10-16 13:02:30,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:30,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481043888] [2022-10-16 13:02:30,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:30,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:02:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:02:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 13:02:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:02:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 13:02:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 13:02:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:02:31,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:31,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481043888] [2022-10-16 13:02:31,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481043888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:31,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:31,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:02:31,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496190974] [2022-10-16 13:02:31,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:31,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:31,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:31,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:31,799 INFO L87 Difference]: Start difference. First operand has 570 states, 401 states have (on average 1.5511221945137157) internal successors, (622), 474 states have internal predecessors, (622), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:02:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:32,614 INFO L93 Difference]: Finished difference Result 1205 states and 1693 transitions. [2022-10-16 13:02:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:02:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 47 [2022-10-16 13:02:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:32,636 INFO L225 Difference]: With dead ends: 1205 [2022-10-16 13:02:32,637 INFO L226 Difference]: Without dead ends: 611 [2022-10-16 13:02:32,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:02:32,650 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 727 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:32,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1401 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:02:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-10-16 13:02:32,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 607. [2022-10-16 13:02:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 438 states have (on average 1.5091324200913243) internal successors, (661), 501 states have internal predecessors, (661), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:02:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 827 transitions. [2022-10-16 13:02:32,777 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 827 transitions. Word has length 47 [2022-10-16 13:02:32,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:32,778 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 827 transitions. [2022-10-16 13:02:32,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:02:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 827 transitions. [2022-10-16 13:02:32,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:02:32,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:32,786 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] [2022-10-16 13:02:32,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:02:32,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1331205373, now seen corresponding path program 1 times [2022-10-16 13:02:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:32,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000143672] [2022-10-16 13:02:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:32,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:33,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:33,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000143672] [2022-10-16 13:02:33,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000143672] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:33,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:33,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:02:33,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683645959] [2022-10-16 13:02:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:33,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:33,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:33,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:33,145 INFO L87 Difference]: Start difference. First operand 607 states and 827 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 13:02:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:33,618 INFO L93 Difference]: Finished difference Result 1238 states and 1698 transitions. [2022-10-16 13:02:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 49 [2022-10-16 13:02:33,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:33,630 INFO L225 Difference]: With dead ends: 1238 [2022-10-16 13:02:33,630 INFO L226 Difference]: Without dead ends: 634 [2022-10-16 13:02:33,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:02:33,641 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 766 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:33,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1293 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:02:33,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-10-16 13:02:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 607. [2022-10-16 13:02:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 438 states have (on average 1.504566210045662) internal successors, (659), 501 states have internal predecessors, (659), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:02:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 825 transitions. [2022-10-16 13:02:33,742 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 825 transitions. Word has length 49 [2022-10-16 13:02:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:33,742 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 825 transitions. [2022-10-16 13:02:33,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 13:02:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 825 transitions. [2022-10-16 13:02:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:02:33,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:33,751 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] [2022-10-16 13:02:33,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:02:33,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:33,753 INFO L85 PathProgramCache]: Analyzing trace with hash -514161793, now seen corresponding path program 1 times [2022-10-16 13:02:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309815968] [2022-10-16 13:02:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:33,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:34,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:34,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:34,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309815968] [2022-10-16 13:02:34,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309815968] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:34,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:34,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:02:34,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133876277] [2022-10-16 13:02:34,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:34,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:02:34,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:34,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:02:34,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:02:34,111 INFO L87 Difference]: Start difference. First operand 607 states and 825 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 13:02:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:34,692 INFO L93 Difference]: Finished difference Result 1230 states and 1686 transitions. [2022-10-16 13:02:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:02:34,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 49 [2022-10-16 13:02:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:34,699 INFO L225 Difference]: With dead ends: 1230 [2022-10-16 13:02:34,700 INFO L226 Difference]: Without dead ends: 626 [2022-10-16 13:02:34,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:02:34,704 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 748 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:34,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1917 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:02:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-10-16 13:02:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 599. [2022-10-16 13:02:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 434 states have (on average 1.4930875576036866) internal successors, (648), 493 states have internal predecessors, (648), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:02:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 814 transitions. [2022-10-16 13:02:34,769 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 814 transitions. Word has length 49 [2022-10-16 13:02:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:34,770 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 814 transitions. [2022-10-16 13:02:34,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 13:02:34,770 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 814 transitions. [2022-10-16 13:02:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 13:02:34,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:34,772 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] [2022-10-16 13:02:34,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:02:34,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash 206329743, now seen corresponding path program 1 times [2022-10-16 13:02:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:34,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361834890] [2022-10-16 13:02:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:35,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:35,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361834890] [2022-10-16 13:02:35,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361834890] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:35,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:35,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:02:35,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769170050] [2022-10-16 13:02:35,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:35,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:35,041 INFO L87 Difference]: Start difference. First operand 599 states and 814 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 13:02:35,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:35,669 INFO L93 Difference]: Finished difference Result 1371 states and 1890 transitions. [2022-10-16 13:02:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:35,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 51 [2022-10-16 13:02:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:35,677 INFO L225 Difference]: With dead ends: 1371 [2022-10-16 13:02:35,678 INFO L226 Difference]: Without dead ends: 775 [2022-10-16 13:02:35,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:35,683 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 207 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:35,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 2056 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:02:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-10-16 13:02:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 653. [2022-10-16 13:02:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 484 states have (on average 1.506198347107438) internal successors, (729), 543 states have internal predecessors, (729), 87 states have call successors, (87), 26 states have call predecessors, (87), 26 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-10-16 13:02:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 903 transitions. [2022-10-16 13:02:35,758 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 903 transitions. Word has length 51 [2022-10-16 13:02:35,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:35,758 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 903 transitions. [2022-10-16 13:02:35,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 13:02:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 903 transitions. [2022-10-16 13:02:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 13:02:35,761 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:35,761 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] [2022-10-16 13:02:35,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:02:35,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:35,762 INFO L85 PathProgramCache]: Analyzing trace with hash 714398481, now seen corresponding path program 1 times [2022-10-16 13:02:35,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:35,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042858874] [2022-10-16 13:02:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:35,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:35,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:35,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042858874] [2022-10-16 13:02:35,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042858874] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:35,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:35,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:02:35,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133193313] [2022-10-16 13:02:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:35,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:35,980 INFO L87 Difference]: Start difference. First operand 653 states and 903 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 13:02:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:36,506 INFO L93 Difference]: Finished difference Result 1282 states and 1770 transitions. [2022-10-16 13:02:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 53 [2022-10-16 13:02:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:36,513 INFO L225 Difference]: With dead ends: 1282 [2022-10-16 13:02:36,514 INFO L226 Difference]: Without dead ends: 632 [2022-10-16 13:02:36,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:36,519 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 74 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:36,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1900 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:02:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-10-16 13:02:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 604. [2022-10-16 13:02:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 439 states have (on average 1.4874715261958997) internal successors, (653), 498 states have internal predecessors, (653), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:02:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 819 transitions. [2022-10-16 13:02:36,591 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 819 transitions. Word has length 53 [2022-10-16 13:02:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:36,592 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 819 transitions. [2022-10-16 13:02:36,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 13:02:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 819 transitions. [2022-10-16 13:02:36,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 13:02:36,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:36,594 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] [2022-10-16 13:02:36,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:02:36,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:36,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash 671516781, now seen corresponding path program 1 times [2022-10-16 13:02:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:36,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711384046] [2022-10-16 13:02:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:36,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:36,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711384046] [2022-10-16 13:02:36,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711384046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:36,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:36,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:02:36,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175015137] [2022-10-16 13:02:36,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:36,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:36,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:36,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:36,794 INFO L87 Difference]: Start difference. First operand 604 states and 819 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:02:37,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:37,401 INFO L93 Difference]: Finished difference Result 714 states and 987 transitions. [2022-10-16 13:02:37,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:37,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 54 [2022-10-16 13:02:37,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:37,409 INFO L225 Difference]: With dead ends: 714 [2022-10-16 13:02:37,409 INFO L226 Difference]: Without dead ends: 712 [2022-10-16 13:02:37,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:37,411 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 546 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:37,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1586 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:02:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-10-16 13:02:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 602. [2022-10-16 13:02:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 439 states have (on average 1.4829157175398633) internal successors, (651), 496 states have internal predecessors, (651), 83 states have call successors, (83), 26 states have call predecessors, (83), 26 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-16 13:02:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 817 transitions. [2022-10-16 13:02:37,490 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 817 transitions. Word has length 54 [2022-10-16 13:02:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:37,491 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 817 transitions. [2022-10-16 13:02:37,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:02:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 817 transitions. [2022-10-16 13:02:37,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 13:02:37,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:37,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:37,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:02:37,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:37,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash -800890857, now seen corresponding path program 1 times [2022-10-16 13:02:37,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:37,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729729769] [2022-10-16 13:02:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:37,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:37,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:37,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729729769] [2022-10-16 13:02:37,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729729769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:37,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574324513] [2022-10-16 13:02:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:37,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:37,874 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 13:02:37,895 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 13:02:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:38,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:02:38,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:38,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:02:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:38,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574324513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:02:38,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:02:38,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:02:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891224937] [2022-10-16 13:02:38,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:02:38,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:02:38,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:02:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:02:38,382 INFO L87 Difference]: Start difference. First operand 602 states and 817 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:40,772 INFO L93 Difference]: Finished difference Result 2436 states and 3605 transitions. [2022-10-16 13:02:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:02:40,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-10-16 13:02:40,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:40,795 INFO L225 Difference]: With dead ends: 2436 [2022-10-16 13:02:40,795 INFO L226 Difference]: Without dead ends: 2429 [2022-10-16 13:02:40,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:02:40,799 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 1958 mSDsluCounter, 5437 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 7137 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:40,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 7137 Invalid, 2008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 13:02:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-10-16 13:02:40,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 902. [2022-10-16 13:02:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 693 states have (on average 1.5281385281385282) internal successors, (1059), 753 states have internal predecessors, (1059), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:02:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1317 transitions. [2022-10-16 13:02:40,929 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1317 transitions. Word has length 57 [2022-10-16 13:02:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:40,930 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1317 transitions. [2022-10-16 13:02:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1317 transitions. [2022-10-16 13:02:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 13:02:40,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:40,933 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:40,978 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 13:02:41,146 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 13:02:41,146 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:41,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:41,147 INFO L85 PathProgramCache]: Analyzing trace with hash 942187555, now seen corresponding path program 1 times [2022-10-16 13:02:41,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:41,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804809853] [2022-10-16 13:02:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:41,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:41,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:41,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804809853] [2022-10-16 13:02:41,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804809853] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:41,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898400732] [2022-10-16 13:02:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:41,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:41,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:41,457 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 13:02:41,477 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 13:02:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:41,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:02:41,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:41,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:02:41,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898400732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:41,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:02:41,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 13:02:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533214983] [2022-10-16 13:02:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:41,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:02:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:02:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:41,772 INFO L87 Difference]: Start difference. First operand 902 states and 1317 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:41,923 INFO L93 Difference]: Finished difference Result 985 states and 1438 transitions. [2022-10-16 13:02:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:02:41,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-10-16 13:02:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:41,931 INFO L225 Difference]: With dead ends: 985 [2022-10-16 13:02:41,931 INFO L226 Difference]: Without dead ends: 984 [2022-10-16 13:02:41,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 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 13:02:41,933 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 470 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:41,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1042 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:02:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-10-16 13:02:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 901. [2022-10-16 13:02:42,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 693 states have (on average 1.5238095238095237) internal successors, (1056), 752 states have internal predecessors, (1056), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:02:42,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1314 transitions. [2022-10-16 13:02:42,026 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1314 transitions. Word has length 58 [2022-10-16 13:02:42,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:42,027 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1314 transitions. [2022-10-16 13:02:42,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:42,027 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1314 transitions. [2022-10-16 13:02:42,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:02:42,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:42,029 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:42,070 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 13:02:42,242 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 13:02:42,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:42,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash -856956519, now seen corresponding path program 1 times [2022-10-16 13:02:42,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:42,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596443240] [2022-10-16 13:02:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:42,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596443240] [2022-10-16 13:02:42,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596443240] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:42,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:42,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:02:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216800123] [2022-10-16 13:02:42,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:42,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:42,417 INFO L87 Difference]: Start difference. First operand 901 states and 1314 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:42,869 INFO L93 Difference]: Finished difference Result 928 states and 1371 transitions. [2022-10-16 13:02:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-10-16 13:02:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:42,876 INFO L225 Difference]: With dead ends: 928 [2022-10-16 13:02:42,877 INFO L226 Difference]: Without dead ends: 927 [2022-10-16 13:02:42,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:42,878 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 74 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:42,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1890 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:02:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-10-16 13:02:42,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 900. [2022-10-16 13:02:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 693 states have (on average 1.5194805194805194) internal successors, (1053), 751 states have internal predecessors, (1053), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:02:42,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1311 transitions. [2022-10-16 13:02:42,970 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1311 transitions. Word has length 59 [2022-10-16 13:02:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:42,970 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1311 transitions. [2022-10-16 13:02:42,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1311 transitions. [2022-10-16 13:02:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:02:42,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:42,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:42,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:02:42,973 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash -854356641, now seen corresponding path program 1 times [2022-10-16 13:02:42,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:42,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638399546] [2022-10-16 13:02:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:42,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:43,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:43,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638399546] [2022-10-16 13:02:43,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638399546] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:43,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137007626] [2022-10-16 13:02:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:43,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:43,143 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 13:02:43,145 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 13:02:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:43,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:02:43,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:43,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:02:43,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137007626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:43,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:02:43,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 13:02:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912882993] [2022-10-16 13:02:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:43,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:02:43,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:02:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:43,487 INFO L87 Difference]: Start difference. First operand 900 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:43,611 INFO L93 Difference]: Finished difference Result 1811 states and 2639 transitions. [2022-10-16 13:02:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:02:43,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-10-16 13:02:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:43,618 INFO L225 Difference]: With dead ends: 1811 [2022-10-16 13:02:43,618 INFO L226 Difference]: Without dead ends: 914 [2022-10-16 13:02:43,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:43,622 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 13 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:43,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1447 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:02:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-10-16 13:02:43,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 910. [2022-10-16 13:02:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 703 states have (on average 1.5177809388335703) internal successors, (1067), 761 states have internal predecessors, (1067), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:02:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1325 transitions. [2022-10-16 13:02:43,759 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1325 transitions. Word has length 59 [2022-10-16 13:02:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:43,760 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1325 transitions. [2022-10-16 13:02:43,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1325 transitions. [2022-10-16 13:02:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 13:02:43,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:43,762 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:43,812 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 13:02:43,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:43,978 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:43,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:43,979 INFO L85 PathProgramCache]: Analyzing trace with hash -854359193, now seen corresponding path program 1 times [2022-10-16 13:02:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:43,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47723397] [2022-10-16 13:02:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:44,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:44,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47723397] [2022-10-16 13:02:44,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47723397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:44,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931549161] [2022-10-16 13:02:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:44,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:44,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:44,228 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 13:02:44,251 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 13:02:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:44,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:02:44,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:44,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:02:44,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931549161] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:44,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:02:44,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:02:44,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117195062] [2022-10-16 13:02:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:44,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:02:44,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:02:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:44,546 INFO L87 Difference]: Start difference. First operand 910 states and 1325 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:44,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:44,689 INFO L93 Difference]: Finished difference Result 994 states and 1446 transitions. [2022-10-16 13:02:44,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:02:44,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-10-16 13:02:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:44,697 INFO L225 Difference]: With dead ends: 994 [2022-10-16 13:02:44,698 INFO L226 Difference]: Without dead ends: 993 [2022-10-16 13:02:44,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:44,699 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 67 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:44,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1512 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:02:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-10-16 13:02:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 910. [2022-10-16 13:02:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 703 states have (on average 1.5149359886201992) internal successors, (1065), 761 states have internal predecessors, (1065), 129 states have call successors, (129), 26 states have call predecessors, (129), 26 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2022-10-16 13:02:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1323 transitions. [2022-10-16 13:02:44,812 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1323 transitions. Word has length 59 [2022-10-16 13:02:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:44,813 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1323 transitions. [2022-10-16 13:02:44,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1323 transitions. [2022-10-16 13:02:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:02:44,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:44,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:44,866 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 13:02:45,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:45,034 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash -715330835, now seen corresponding path program 1 times [2022-10-16 13:02:45,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:45,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264254682] [2022-10-16 13:02:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:45,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:45,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264254682] [2022-10-16 13:02:45,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264254682] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:45,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580261713] [2022-10-16 13:02:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:45,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:45,210 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 13:02:45,215 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 13:02:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:45,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:02:45,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:45,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:45,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:02:45,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580261713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:45,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:02:45,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:02:45,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997406857] [2022-10-16 13:02:45,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:45,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:02:45,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:45,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:02:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:45,504 INFO L87 Difference]: Start difference. First operand 910 states and 1323 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:45,692 INFO L93 Difference]: Finished difference Result 1474 states and 2200 transitions. [2022-10-16 13:02:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:02:45,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2022-10-16 13:02:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:45,702 INFO L225 Difference]: With dead ends: 1474 [2022-10-16 13:02:45,703 INFO L226 Difference]: Without dead ends: 1471 [2022-10-16 13:02:45,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:45,705 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 459 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:45,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1441 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:02:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2022-10-16 13:02:45,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1347. [2022-10-16 13:02:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1059 states have (on average 1.534466477809254) internal successors, (1625), 1120 states have internal predecessors, (1625), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:02:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2047 transitions. [2022-10-16 13:02:45,837 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2047 transitions. Word has length 60 [2022-10-16 13:02:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:45,838 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 2047 transitions. [2022-10-16 13:02:45,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:45,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2047 transitions. [2022-10-16 13:02:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 13:02:45,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:45,839 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 13:02:45,877 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 13:02:46,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 13:02:46,056 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:46,057 INFO L85 PathProgramCache]: Analyzing trace with hash 467201447, now seen corresponding path program 1 times [2022-10-16 13:02:46,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:46,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423952121] [2022-10-16 13:02:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:46,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:46,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423952121] [2022-10-16 13:02:46,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423952121] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:46,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502219206] [2022-10-16 13:02:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:46,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:46,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:46,258 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 13:02:46,275 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 13:02:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:46,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:02:46,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:46,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:02:46,589 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:02:46,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502219206] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:02:46,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:02:46,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-10-16 13:02:46,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132941191] [2022-10-16 13:02:46,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:02:46,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:02:46,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:46,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:02:46,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:02:46,593 INFO L87 Difference]: Start difference. First operand 1347 states and 2047 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:47,356 INFO L93 Difference]: Finished difference Result 2210 states and 3304 transitions. [2022-10-16 13:02:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:02:47,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2022-10-16 13:02:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:47,365 INFO L225 Difference]: With dead ends: 2210 [2022-10-16 13:02:47,365 INFO L226 Difference]: Without dead ends: 866 [2022-10-16 13:02:47,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:02:47,372 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 93 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:47,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 3777 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:02:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-10-16 13:02:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 839. [2022-10-16 13:02:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 638 states have (on average 1.493730407523511) internal successors, (953), 694 states have internal predecessors, (953), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:02:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1201 transitions. [2022-10-16 13:02:47,458 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1201 transitions. Word has length 65 [2022-10-16 13:02:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:47,459 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1201 transitions. [2022-10-16 13:02:47,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1201 transitions. [2022-10-16 13:02:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 13:02:47,461 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:47,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:47,504 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 13:02:47,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:47,676 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:47,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1252515857, now seen corresponding path program 1 times [2022-10-16 13:02:47,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:47,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686623600] [2022-10-16 13:02:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 13:02:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 13:02:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:02:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:02:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:02:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:02:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:02:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:02:47,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:47,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686623600] [2022-10-16 13:02:47,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686623600] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:47,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:47,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:02:47,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937732542] [2022-10-16 13:02:47,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:47,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:02:47,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:02:47,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:02:47,825 INFO L87 Difference]: Start difference. First operand 839 states and 1201 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:02:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:48,239 INFO L93 Difference]: Finished difference Result 1679 states and 2404 transitions. [2022-10-16 13:02:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:02:48,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2022-10-16 13:02:48,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:48,246 INFO L225 Difference]: With dead ends: 1679 [2022-10-16 13:02:48,246 INFO L226 Difference]: Without dead ends: 843 [2022-10-16 13:02:48,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:02:48,250 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 700 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:48,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1208 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:02:48,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-10-16 13:02:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 839. [2022-10-16 13:02:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 638 states have (on average 1.4921630094043887) internal successors, (952), 694 states have internal predecessors, (952), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:02:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1200 transitions. [2022-10-16 13:02:48,329 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1200 transitions. Word has length 66 [2022-10-16 13:02:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:48,330 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1200 transitions. [2022-10-16 13:02:48,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 13:02:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1200 transitions. [2022-10-16 13:02:48,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 13:02:48,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:48,332 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 13:02:48,332 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash 204690863, now seen corresponding path program 2 times [2022-10-16 13:02:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:48,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100003349] [2022-10-16 13:02:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:48,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:02:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 13:02:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 13:02:48,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:48,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100003349] [2022-10-16 13:02:48,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100003349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:48,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965132481] [2022-10-16 13:02:48,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:02:48,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:48,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:48,677 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 13:02:48,701 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 13:02:48,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:02:48,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:02:48,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:02:48,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 13:02:48,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:02:48,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965132481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:48,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:02:48,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 13:02:48,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349036739] [2022-10-16 13:02:48,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:48,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:02:48,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:02:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:02:48,957 INFO L87 Difference]: Start difference. First operand 839 states and 1200 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:49,045 INFO L93 Difference]: Finished difference Result 1677 states and 2400 transitions. [2022-10-16 13:02:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:02:49,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2022-10-16 13:02:49,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:49,051 INFO L225 Difference]: With dead ends: 1677 [2022-10-16 13:02:49,051 INFO L226 Difference]: Without dead ends: 841 [2022-10-16 13:02:49,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:02:49,055 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 0 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:49,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1464 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:02:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-10-16 13:02:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2022-10-16 13:02:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 640 states have (on average 1.490625) internal successors, (954), 696 states have internal predecessors, (954), 124 states have call successors, (124), 26 states have call predecessors, (124), 26 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2022-10-16 13:02:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1202 transitions. [2022-10-16 13:02:49,141 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1202 transitions. Word has length 75 [2022-10-16 13:02:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:49,142 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1202 transitions. [2022-10-16 13:02:49,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1202 transitions. [2022-10-16 13:02:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 13:02:49,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:49,144 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:49,188 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 13:02:49,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:49,358 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1047846346, now seen corresponding path program 1 times [2022-10-16 13:02:49,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:49,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401101386] [2022-10-16 13:02:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:49,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:02:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:02:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:02:49,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:49,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401101386] [2022-10-16 13:02:49,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401101386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:02:49,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053929867] [2022-10-16 13:02:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:49,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:02:49,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:02:49,710 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 13:02:49,729 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 13:02:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:50,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:02:50,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:02:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:02:50,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:02:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:02:50,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053929867] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:02:50,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:02:50,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 13:02:50,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030125820] [2022-10-16 13:02:50,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:02:50,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:02:50,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:50,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:02:50,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:02:50,169 INFO L87 Difference]: Start difference. First operand 841 states and 1202 transitions. Second operand has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:55,915 INFO L93 Difference]: Finished difference Result 7440 states and 11669 transitions. [2022-10-16 13:02:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 13:02:55,918 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 77 [2022-10-16 13:02:55,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:55,997 INFO L225 Difference]: With dead ends: 7440 [2022-10-16 13:02:55,998 INFO L226 Difference]: Without dead ends: 7433 [2022-10-16 13:02:56,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 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 13:02:56,004 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 6108 mSDsluCounter, 13754 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6849 SdHoareTripleChecker+Valid, 17102 SdHoareTripleChecker+Invalid, 5703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 4710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:56,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6849 Valid, 17102 Invalid, 5703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [993 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-16 13:02:56,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7433 states. [2022-10-16 13:02:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7433 to 1385. [2022-10-16 13:02:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1097 states have (on average 1.5177757520510484) internal successors, (1665), 1158 states have internal predecessors, (1665), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:02:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 2087 transitions. [2022-10-16 13:02:56,342 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 2087 transitions. Word has length 77 [2022-10-16 13:02:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 2087 transitions. [2022-10-16 13:02:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:02:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 2087 transitions. [2022-10-16 13:02:56,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:02:56,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:56,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:56,392 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 13:02:56,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 13:02:56,561 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:56,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2110617865, now seen corresponding path program 1 times [2022-10-16 13:02:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:56,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841063703] [2022-10-16 13:02:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:02:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:02:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:02:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:02:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:02:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:02:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:02:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 13:02:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:02:56,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:56,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841063703] [2022-10-16 13:02:56,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841063703] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:56,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:56,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:02:56,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131040432] [2022-10-16 13:02:56,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:56,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:02:56,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:02:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:56,808 INFO L87 Difference]: Start difference. First operand 1385 states and 2087 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:02:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:57,815 INFO L93 Difference]: Finished difference Result 2801 states and 4257 transitions. [2022-10-16 13:02:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:02:57,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2022-10-16 13:02:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:57,828 INFO L225 Difference]: With dead ends: 2801 [2022-10-16 13:02:57,829 INFO L226 Difference]: Without dead ends: 1416 [2022-10-16 13:02:57,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:02:57,835 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 155 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:57,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2835 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:02:57,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-10-16 13:02:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1385. [2022-10-16 13:02:58,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1097 states have (on average 1.5168641750227894) internal successors, (1664), 1158 states have internal predecessors, (1664), 211 states have call successors, (211), 26 states have call predecessors, (211), 26 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2022-10-16 13:02:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 2086 transitions. [2022-10-16 13:02:58,032 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 2086 transitions. Word has length 82 [2022-10-16 13:02:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:58,032 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 2086 transitions. [2022-10-16 13:02:58,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 13:02:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 2086 transitions. [2022-10-16 13:02:58,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:02:58,034 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:58,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 13:02:58,035 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:02:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -171455819, now seen corresponding path program 1 times [2022-10-16 13:02:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:58,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420797847] [2022-10-16 13:02:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:02:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:02:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:02:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:02:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:02:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:02:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:02:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 13:02:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:02:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:58,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420797847] [2022-10-16 13:02:58,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420797847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:58,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:58,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:02:58,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475627327] [2022-10-16 13:02:58,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:58,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:02:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:02:58,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:02:58,223 INFO L87 Difference]: Start difference. First operand 1385 states and 2086 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 13:02:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:59,641 INFO L93 Difference]: Finished difference Result 4124 states and 6307 transitions. [2022-10-16 13:02:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:02:59,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2022-10-16 13:02:59,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:59,663 INFO L225 Difference]: With dead ends: 4124 [2022-10-16 13:02:59,663 INFO L226 Difference]: Without dead ends: 2719 [2022-10-16 13:02:59,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:02:59,671 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 909 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:59,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 2327 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 13:02:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-10-16 13:03:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2612. [2022-10-16 13:03:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2114 states have (on average 1.5165562913907285) internal successors, (3206), 2186 states have internal predecessors, (3206), 403 states have call successors, (403), 44 states have call predecessors, (403), 44 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2022-10-16 13:03:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 4012 transitions. [2022-10-16 13:03:00,029 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 4012 transitions. Word has length 82 [2022-10-16 13:03:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:00,029 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 4012 transitions. [2022-10-16 13:03:00,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 13:03:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 4012 transitions. [2022-10-16 13:03:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 13:03:00,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:00,031 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:00,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 13:03:00,031 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash -552138662, now seen corresponding path program 1 times [2022-10-16 13:03:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:00,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630361349] [2022-10-16 13:03:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-16 13:03:00,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:00,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630361349] [2022-10-16 13:03:00,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630361349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:00,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559182813] [2022-10-16 13:03:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:00,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:00,235 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 13:03:00,255 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 13:03:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:00,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:03:00,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:03:00,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 13:03:00,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559182813] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:00,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:00,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2022-10-16 13:03:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976801467] [2022-10-16 13:03:00,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:00,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 13:03:00,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:00,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 13:03:00,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:03:00,704 INFO L87 Difference]: Start difference. First operand 2612 states and 4012 transitions. Second operand has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 14 states have internal predecessors, (112), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:03:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:01,413 INFO L93 Difference]: Finished difference Result 4136 states and 6306 transitions. [2022-10-16 13:03:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 13:03:01,414 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 14 states have internal predecessors, (112), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2022-10-16 13:03:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:01,423 INFO L225 Difference]: With dead ends: 4136 [2022-10-16 13:03:01,424 INFO L226 Difference]: Without dead ends: 1665 [2022-10-16 13:03:01,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:03:01,432 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 160 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:01,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3145 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:03:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-10-16 13:03:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1608. [2022-10-16 13:03:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1284 states have (on average 1.4618380062305296) internal successors, (1877), 1346 states have internal predecessors, (1877), 229 states have call successors, (229), 44 states have call predecessors, (229), 44 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2022-10-16 13:03:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2335 transitions. [2022-10-16 13:03:01,607 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2335 transitions. Word has length 85 [2022-10-16 13:03:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:01,608 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2335 transitions. [2022-10-16 13:03:01,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 14 states have internal predecessors, (112), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 13:03:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2335 transitions. [2022-10-16 13:03:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 13:03:01,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:01,633 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:01,683 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 13:03:01,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:01,843 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1855326854, now seen corresponding path program 2 times [2022-10-16 13:03:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:01,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192134567] [2022-10-16 13:03:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:01,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:02,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:02,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:02,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192134567] [2022-10-16 13:03:02,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192134567] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:02,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657094290] [2022-10-16 13:03:02,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:03:02,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:02,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:02,461 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 13:03:02,469 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 13:03:02,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:03:02,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:03:02,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 13:03:02,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-10-16 13:03:02,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:03:02,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657094290] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:03:02,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:03:02,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2022-10-16 13:03:02,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599867483] [2022-10-16 13:03:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:03:02,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:03:02,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:03:02,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:03:02,849 INFO L87 Difference]: Start difference. First operand 1608 states and 2335 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:03,130 INFO L93 Difference]: Finished difference Result 3256 states and 4741 transitions. [2022-10-16 13:03:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:03:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 113 [2022-10-16 13:03:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:03,138 INFO L225 Difference]: With dead ends: 3256 [2022-10-16 13:03:03,138 INFO L226 Difference]: Without dead ends: 1709 [2022-10-16 13:03:03,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:03:03,144 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 62 mSDsluCounter, 5576 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 6386 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:03,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 6386 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:03:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-10-16 13:03:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1624. [2022-10-16 13:03:03,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1296 states have (on average 1.4575617283950617) internal successors, (1889), 1359 states have internal predecessors, (1889), 229 states have call successors, (229), 44 states have call predecessors, (229), 48 states have return successors, (242), 232 states have call predecessors, (242), 229 states have call successors, (242) [2022-10-16 13:03:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2360 transitions. [2022-10-16 13:03:03,334 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2360 transitions. Word has length 113 [2022-10-16 13:03:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:03,335 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2360 transitions. [2022-10-16 13:03:03,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2360 transitions. [2022-10-16 13:03:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 13:03:03,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:03,338 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:03,377 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 13:03:03,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:03,551 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:03,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash -122546638, now seen corresponding path program 1 times [2022-10-16 13:03:03,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:03,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808404907] [2022-10-16 13:03:03,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:03,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:04,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808404907] [2022-10-16 13:03:04,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808404907] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167297235] [2022-10-16 13:03:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:04,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:04,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:04,133 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 13:03:04,152 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 13:03:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:04,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 13:03:04,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:04,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:04,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167297235] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:04,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:04,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 13:03:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643633996] [2022-10-16 13:03:04,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:04,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 13:03:04,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:04,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 13:03:04,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-16 13:03:04,845 INFO L87 Difference]: Start difference. First operand 1624 states and 2360 transitions. Second operand has 26 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:14,945 INFO L93 Difference]: Finished difference Result 27516 states and 44686 transitions. [2022-10-16 13:03:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 13:03:14,946 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 119 [2022-10-16 13:03:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:15,070 INFO L225 Difference]: With dead ends: 27516 [2022-10-16 13:03:15,071 INFO L226 Difference]: Without dead ends: 27509 [2022-10-16 13:03:15,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 234 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 13:03:15,083 INFO L413 NwaCegarLoop]: 6800 mSDtfsCounter, 12422 mSDsluCounter, 25515 mSDsCounter, 0 mSdLazyCounter, 7821 mSolverCounterSat, 2499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14031 SdHoareTripleChecker+Valid, 32315 SdHoareTripleChecker+Invalid, 10320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2499 IncrementalHoareTripleChecker+Valid, 7821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:15,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14031 Valid, 32315 Invalid, 10320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2499 Valid, 7821 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-10-16 13:03:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27509 states. [2022-10-16 13:03:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27509 to 2796. [2022-10-16 13:03:16,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2294 states have (on average 1.4829991281604185) internal successors, (3402), 2367 states have internal predecessors, (3402), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:03:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 4225 transitions. [2022-10-16 13:03:16,352 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 4225 transitions. Word has length 119 [2022-10-16 13:03:16,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:16,353 INFO L495 AbstractCegarLoop]: Abstraction has 2796 states and 4225 transitions. [2022-10-16 13:03:16,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 4225 transitions. [2022-10-16 13:03:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 13:03:16,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:16,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:16,398 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 13:03:16,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 13:03:16,568 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:16,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1080643274, now seen corresponding path program 1 times [2022-10-16 13:03:16,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:16,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728198216] [2022-10-16 13:03:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-10-16 13:03:16,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:16,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728198216] [2022-10-16 13:03:16,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728198216] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:16,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557429160] [2022-10-16 13:03:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:16,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:16,836 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 13:03:16,840 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 13:03:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:17,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:03:17,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:03:17,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:03:17,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557429160] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:17,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:17,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 13] total 27 [2022-10-16 13:03:17,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501308828] [2022-10-16 13:03:17,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:17,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 13:03:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:17,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 13:03:17,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=419, Unknown=0, NotChecked=0, Total=702 [2022-10-16 13:03:17,665 INFO L87 Difference]: Start difference. First operand 2796 states and 4225 transitions. Second operand has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:19,008 INFO L93 Difference]: Finished difference Result 3967 states and 5866 transitions. [2022-10-16 13:03:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 13:03:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 127 [2022-10-16 13:03:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:19,017 INFO L225 Difference]: With dead ends: 3967 [2022-10-16 13:03:19,017 INFO L226 Difference]: Without dead ends: 1891 [2022-10-16 13:03:19,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=855, Invalid=1497, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 13:03:19,023 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 363 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 4724 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:19,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 4724 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 13:03:19,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2022-10-16 13:03:19,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1768. [2022-10-16 13:03:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1440 states have (on average 1.4104166666666667) internal successors, (2031), 1503 states have internal predecessors, (2031), 229 states have call successors, (229), 44 states have call predecessors, (229), 48 states have return successors, (242), 232 states have call predecessors, (242), 229 states have call successors, (242) [2022-10-16 13:03:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2502 transitions. [2022-10-16 13:03:19,196 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2502 transitions. Word has length 127 [2022-10-16 13:03:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:19,196 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2502 transitions. [2022-10-16 13:03:19,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.037037037037037) internal successors, (190), 26 states have internal predecessors, (190), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2502 transitions. [2022-10-16 13:03:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-10-16 13:03:19,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:19,199 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:19,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 13:03:19,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 13:03:19,413 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash 568067474, now seen corresponding path program 2 times [2022-10-16 13:03:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:19,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41717476] [2022-10-16 13:03:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:20,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:20,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41717476] [2022-10-16 13:03:20,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41717476] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:20,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33006945] [2022-10-16 13:03:20,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:03:20,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:20,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:20,979 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 13:03:20,999 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 13:03:21,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:03:21,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:03:21,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 13:03:21,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:21,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 13:03:22,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33006945] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:22,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:22,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 49 [2022-10-16 13:03:22,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171357275] [2022-10-16 13:03:22,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:22,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 13:03:22,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 13:03:22,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:03:22,483 INFO L87 Difference]: Start difference. First operand 1768 states and 2502 transitions. Second operand has 50 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:51,435 INFO L93 Difference]: Finished difference Result 55716 states and 90668 transitions. [2022-10-16 13:03:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 13:03:51,436 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2022-10-16 13:03:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:51,679 INFO L225 Difference]: With dead ends: 55716 [2022-10-16 13:03:51,679 INFO L226 Difference]: Without dead ends: 55709 [2022-10-16 13:03:51,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:03:51,703 INFO L413 NwaCegarLoop]: 13516 mSDtfsCounter, 31625 mSDsluCounter, 67031 mSDsCounter, 0 mSdLazyCounter, 20590 mSolverCounterSat, 9719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34952 SdHoareTripleChecker+Valid, 80547 SdHoareTripleChecker+Invalid, 30309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9719 IncrementalHoareTripleChecker+Valid, 20590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:51,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34952 Valid, 80547 Invalid, 30309 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9719 Valid, 20590 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2022-10-16 13:03:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55709 states. [2022-10-16 13:03:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55709 to 3084. [2022-10-16 13:03:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2582 states have (on average 1.436870642912471) internal successors, (3710), 2655 states have internal predecessors, (3710), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:03:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 4533 transitions. [2022-10-16 13:03:53,793 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 4533 transitions. Word has length 191 [2022-10-16 13:03:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:53,794 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 4533 transitions. [2022-10-16 13:03:53,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.489795918367347) internal successors, (318), 49 states have internal predecessors, (318), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 4533 transitions. [2022-10-16 13:03:53,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 13:03:53,797 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:53,797 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:53,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 13:03:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 13:03:54,011 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -111744470, now seen corresponding path program 1 times [2022-10-16 13:03:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:54,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378696671] [2022-10-16 13:03:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2022-10-16 13:03:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:54,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378696671] [2022-10-16 13:03:54,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378696671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:54,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006578074] [2022-10-16 13:03:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:54,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:54,353 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 13:03:54,376 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 13:03:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:54,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 13:03:54,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 13:03:55,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 13:03:55,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006578074] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:55,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:55,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 25, 25] total 38 [2022-10-16 13:03:55,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636312385] [2022-10-16 13:03:55,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:55,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 13:03:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 13:03:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:03:55,921 INFO L87 Difference]: Start difference. First operand 3084 states and 4533 transitions. Second operand has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 37 states have internal predecessors, (261), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:57,133 INFO L93 Difference]: Finished difference Result 5869 states and 8811 transitions. [2022-10-16 13:03:57,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 13:03:57,138 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 37 states have internal predecessors, (261), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 205 [2022-10-16 13:03:57,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:57,149 INFO L225 Difference]: With dead ends: 5869 [2022-10-16 13:03:57,149 INFO L226 Difference]: Without dead ends: 3153 [2022-10-16 13:03:57,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 373 SyntacticMatches, 14 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:03:57,159 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 413 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 4481 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:57,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 4481 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:03:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2022-10-16 13:03:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3108. [2022-10-16 13:03:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2606 states have (on average 1.4267075978511128) internal successors, (3718), 2679 states have internal predecessors, (3718), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:03:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4541 transitions. [2022-10-16 13:03:57,960 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4541 transitions. Word has length 205 [2022-10-16 13:03:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:57,960 INFO L495 AbstractCegarLoop]: Abstraction has 3108 states and 4541 transitions. [2022-10-16 13:03:57,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 37 states have internal predecessors, (261), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:03:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4541 transitions. [2022-10-16 13:03:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-10-16 13:03:57,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:57,965 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:03:58,011 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 13:03:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:58,180 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:03:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1620827394, now seen corresponding path program 2 times [2022-10-16 13:03:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:58,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860236279] [2022-10-16 13:03:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:58,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:03:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:03:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:03:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:03:58,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:58,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860236279] [2022-10-16 13:03:58,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860236279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:03:58,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913833334] [2022-10-16 13:03:58,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:03:58,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:03:58,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:03:58,687 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 13:03:58,713 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 13:03:59,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:03:59,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:03:59,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:03:59,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:03:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:03:59,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:03:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:03:59,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913833334] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:03:59,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:03:59,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-10-16 13:03:59,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913927966] [2022-10-16 13:03:59,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:03:59,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 13:03:59,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:59,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 13:03:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:03:59,712 INFO L87 Difference]: Start difference. First operand 3108 states and 4541 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:02,700 INFO L93 Difference]: Finished difference Result 8834 states and 14058 transitions. [2022-10-16 13:04:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:04:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 265 [2022-10-16 13:04:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:02,737 INFO L225 Difference]: With dead ends: 8834 [2022-10-16 13:04:02,737 INFO L226 Difference]: Without dead ends: 8831 [2022-10-16 13:04:02,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:04:02,743 INFO L413 NwaCegarLoop]: 1160 mSDtfsCounter, 1961 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 5430 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:02,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 5430 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 13:04:02,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2022-10-16 13:04:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 5156. [2022-10-16 13:04:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 4306 states have (on average 1.4872271249419415) internal successors, (6404), 4399 states have internal predecessors, (6404), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:04:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 7931 transitions. [2022-10-16 13:04:03,988 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 7931 transitions. Word has length 265 [2022-10-16 13:04:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:03,989 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 7931 transitions. [2022-10-16 13:04:03,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 7931 transitions. [2022-10-16 13:04:03,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-10-16 13:04:03,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:03,992 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:04,032 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 13:04:04,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:04,205 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:04,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash -77568254, now seen corresponding path program 2 times [2022-10-16 13:04:04,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:04,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102628840] [2022-10-16 13:04:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:04,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:04:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:04:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:04:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:04,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102628840] [2022-10-16 13:04:04,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102628840] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:04,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466453715] [2022-10-16 13:04:04,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:04:04,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:04,821 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 13:04:04,829 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 13:04:05,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:04:05,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:04:05,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:04:05,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2022-10-16 13:04:05,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:04:05,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466453715] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:05,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:04:05,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 13:04:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006411096] [2022-10-16 13:04:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:05,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:04:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:05,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:04:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:04:05,302 INFO L87 Difference]: Start difference. First operand 5156 states and 7931 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:07,080 INFO L93 Difference]: Finished difference Result 9202 states and 14622 transitions. [2022-10-16 13:04:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:04:07,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 271 [2022-10-16 13:04:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:07,110 INFO L225 Difference]: With dead ends: 9202 [2022-10-16 13:04:07,110 INFO L226 Difference]: Without dead ends: 9200 [2022-10-16 13:04:07,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:04:07,116 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 386 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:07,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1501 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:04:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9200 states. [2022-10-16 13:04:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9200 to 5180. [2022-10-16 13:04:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5180 states, 4330 states have (on average 1.4863741339491916) internal successors, (6436), 4423 states have internal predecessors, (6436), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:04:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 7963 transitions. [2022-10-16 13:04:08,422 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 7963 transitions. Word has length 271 [2022-10-16 13:04:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:08,423 INFO L495 AbstractCegarLoop]: Abstraction has 5180 states and 7963 transitions. [2022-10-16 13:04:08,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 7963 transitions. [2022-10-16 13:04:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-10-16 13:04:08,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:08,427 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 3, 3, 3, 3, 3, 3, 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 13:04:08,467 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 13:04:08,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 13:04:08,641 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:08,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1890351928, now seen corresponding path program 1 times [2022-10-16 13:04:08,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:08,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569039485] [2022-10-16 13:04:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:08,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:04:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:04:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:04:09,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:09,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569039485] [2022-10-16 13:04:09,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569039485] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:09,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796160163] [2022-10-16 13:04:09,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:09,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:09,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:09,059 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 13:04:09,077 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 13:04:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:09,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:04:09,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:04:09,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:04:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:04:09,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796160163] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:04:09,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:04:09,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2022-10-16 13:04:09,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625199489] [2022-10-16 13:04:09,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:04:09,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 13:04:09,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 13:04:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:04:09,652 INFO L87 Difference]: Start difference. First operand 5180 states and 7963 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:10,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:10,707 INFO L93 Difference]: Finished difference Result 8014 states and 12300 transitions. [2022-10-16 13:04:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 13:04:10,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 272 [2022-10-16 13:04:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:10,718 INFO L225 Difference]: With dead ends: 8014 [2022-10-16 13:04:10,719 INFO L226 Difference]: Without dead ends: 3264 [2022-10-16 13:04:10,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:04:10,733 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 137 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:10,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2493 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:04:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2022-10-16 13:04:11,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3223. [2022-10-16 13:04:11,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2722 states have (on average 1.4085231447465099) internal successors, (3834), 2794 states have internal predecessors, (3834), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:04:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4657 transitions. [2022-10-16 13:04:11,564 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4657 transitions. Word has length 272 [2022-10-16 13:04:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:11,565 INFO L495 AbstractCegarLoop]: Abstraction has 3223 states and 4657 transitions. [2022-10-16 13:04:11,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4657 transitions. [2022-10-16 13:04:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-10-16 13:04:11,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:11,568 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 7, 7, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:11,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 13:04:11,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 13:04:11,782 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1410005282, now seen corresponding path program 3 times [2022-10-16 13:04:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:11,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646717325] [2022-10-16 13:04:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:11,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:04:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 13:04:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 3021 trivial. 0 not checked. [2022-10-16 13:04:12,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:12,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646717325] [2022-10-16 13:04:12,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646717325] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:12,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450362691] [2022-10-16 13:04:12,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:04:12,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:12,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:12,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:12,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 13:04:12,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:04:12,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:04:12,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:04:12,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-10-16 13:04:13,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:04:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-10-16 13:04:13,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450362691] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:04:13,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:04:13,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-16 13:04:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302122013] [2022-10-16 13:04:13,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:04:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:04:13,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:04:13,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:04:13,082 INFO L87 Difference]: Start difference. First operand 3223 states and 4657 transitions. Second operand has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:04:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:14,471 INFO L93 Difference]: Finished difference Result 6534 states and 9511 transitions. [2022-10-16 13:04:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 13:04:14,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 289 [2022-10-16 13:04:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:14,478 INFO L225 Difference]: With dead ends: 6534 [2022-10-16 13:04:14,478 INFO L226 Difference]: Without dead ends: 3358 [2022-10-16 13:04:14,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:04:14,487 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 225 mSDsluCounter, 5188 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 6013 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:14,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 6013 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:04:14,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-10-16 13:04:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3235. [2022-10-16 13:04:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 2734 states have (on average 1.405267008046818) internal successors, (3842), 2806 states have internal predecessors, (3842), 403 states have call successors, (403), 44 states have call predecessors, (403), 48 states have return successors, (420), 406 states have call predecessors, (420), 403 states have call successors, (420) [2022-10-16 13:04:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4665 transitions. [2022-10-16 13:04:15,299 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4665 transitions. Word has length 289 [2022-10-16 13:04:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:15,300 INFO L495 AbstractCegarLoop]: Abstraction has 3235 states and 4665 transitions. [2022-10-16 13:04:15,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:04:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4665 transitions. [2022-10-16 13:04:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-10-16 13:04:15,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:15,302 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 8, 8, 7, 7, 7, 7, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:15,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-10-16 13:04:15,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 13:04:15,503 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1265659323, now seen corresponding path program 4 times [2022-10-16 13:04:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:15,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949858087] [2022-10-16 13:04:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:15,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 3039 trivial. 0 not checked. [2022-10-16 13:04:16,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:16,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949858087] [2022-10-16 13:04:16,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949858087] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:16,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011556904] [2022-10-16 13:04:16,357 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 13:04:16,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:16,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:16,359 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:16,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 13:04:16,906 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 13:04:16,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:04:16,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 13:04:16,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 3039 trivial. 0 not checked. [2022-10-16 13:04:17,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:04:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 3039 trivial. 0 not checked. [2022-10-16 13:04:17,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011556904] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:04:17,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:04:17,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2022-10-16 13:04:17,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034396905] [2022-10-16 13:04:17,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:04:17,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 13:04:17,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:17,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 13:04:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:04:17,627 INFO L87 Difference]: Start difference. First operand 3235 states and 4665 transitions. Second operand has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 19 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:24,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:24,167 INFO L93 Difference]: Finished difference Result 19891 states and 32297 transitions. [2022-10-16 13:04:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:04:24,167 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 19 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 301 [2022-10-16 13:04:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:24,218 INFO L225 Difference]: With dead ends: 19891 [2022-10-16 13:04:24,218 INFO L226 Difference]: Without dead ends: 19888 [2022-10-16 13:04:24,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:04:24,226 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 8419 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 2884 mSolverCounterSat, 1629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8991 SdHoareTripleChecker+Valid, 8289 SdHoareTripleChecker+Invalid, 4513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1629 IncrementalHoareTripleChecker+Valid, 2884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:24,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8991 Valid, 8289 Invalid, 4513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1629 Valid, 2884 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 13:04:24,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19888 states. [2022-10-16 13:04:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19888 to 5431. [2022-10-16 13:04:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 4582 states have (on average 1.4613705805325186) internal successors, (6696), 4674 states have internal predecessors, (6696), 751 states have call successors, (751), 44 states have call predecessors, (751), 48 states have return successors, (776), 754 states have call predecessors, (776), 751 states have call successors, (776) [2022-10-16 13:04:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 8223 transitions. [2022-10-16 13:04:25,535 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 8223 transitions. Word has length 301 [2022-10-16 13:04:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:25,536 INFO L495 AbstractCegarLoop]: Abstraction has 5431 states and 8223 transitions. [2022-10-16 13:04:25,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.526315789473685) internal successors, (162), 19 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:25,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 8223 transitions. [2022-10-16 13:04:25,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-10-16 13:04:25,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:25,538 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 8, 8, 8, 8, 8, 8, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:25,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 13:04:25,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 13:04:25,739 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash 709843039, now seen corresponding path program 2 times [2022-10-16 13:04:25,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826603087] [2022-10-16 13:04:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:25,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 3039 trivial. 0 not checked. [2022-10-16 13:04:26,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:26,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826603087] [2022-10-16 13:04:26,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826603087] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:26,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049496785] [2022-10-16 13:04:26,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:04:26,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:26,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:26,482 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:26,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 13:04:26,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:04:26,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:04:26,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:04:26,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3215 trivial. 0 not checked. [2022-10-16 13:04:26,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:04:26,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049496785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:26,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:04:26,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-10-16 13:04:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859673996] [2022-10-16 13:04:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:26,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:04:26,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:26,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:04:26,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:04:26,962 INFO L87 Difference]: Start difference. First operand 5431 states and 8223 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:28,651 INFO L93 Difference]: Finished difference Result 8188 states and 12700 transitions. [2022-10-16 13:04:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:04:28,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 308 [2022-10-16 13:04:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:28,669 INFO L225 Difference]: With dead ends: 8188 [2022-10-16 13:04:28,669 INFO L226 Difference]: Without dead ends: 8186 [2022-10-16 13:04:28,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:04:28,673 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 361 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:28,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1302 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:04:28,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8186 states. [2022-10-16 13:04:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8186 to 5639. [2022-10-16 13:04:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5639 states, 4766 states have (on average 1.4687368862778012) internal successors, (7000), 4858 states have internal predecessors, (7000), 775 states have call successors, (775), 44 states have call predecessors, (775), 48 states have return successors, (800), 778 states have call predecessors, (800), 775 states have call successors, (800) [2022-10-16 13:04:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5639 states to 5639 states and 8575 transitions. [2022-10-16 13:04:29,852 INFO L78 Accepts]: Start accepts. Automaton has 5639 states and 8575 transitions. Word has length 308 [2022-10-16 13:04:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:29,853 INFO L495 AbstractCegarLoop]: Abstraction has 5639 states and 8575 transitions. [2022-10-16 13:04:29,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5639 states and 8575 transitions. [2022-10-16 13:04:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-10-16 13:04:29,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:29,856 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 8, 8, 8, 8, 8, 8, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:29,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 13:04:30,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:30,066 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:30,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:30,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1225570179, now seen corresponding path program 1 times [2022-10-16 13:04:30,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:30,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957155364] [2022-10-16 13:04:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3215 trivial. 0 not checked. [2022-10-16 13:04:30,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:30,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957155364] [2022-10-16 13:04:30,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957155364] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:30,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:04:30,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:04:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133122413] [2022-10-16 13:04:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:30,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:04:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:04:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:04:30,477 INFO L87 Difference]: Start difference. First operand 5639 states and 8575 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:32,143 INFO L93 Difference]: Finished difference Result 6195 states and 9632 transitions. [2022-10-16 13:04:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:04:32,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 312 [2022-10-16 13:04:32,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:32,155 INFO L225 Difference]: With dead ends: 6195 [2022-10-16 13:04:32,155 INFO L226 Difference]: Without dead ends: 6190 [2022-10-16 13:04:32,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 13:04:32,158 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 205 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:32,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1943 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:04:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2022-10-16 13:04:33,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5863. [2022-10-16 13:04:33,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 4982 states have (on average 1.470092332396628) internal successors, (7324), 5074 states have internal predecessors, (7324), 783 states have call successors, (783), 44 states have call predecessors, (783), 48 states have return successors, (808), 786 states have call predecessors, (808), 783 states have call successors, (808) [2022-10-16 13:04:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 8915 transitions. [2022-10-16 13:04:33,407 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 8915 transitions. Word has length 312 [2022-10-16 13:04:33,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:33,407 INFO L495 AbstractCegarLoop]: Abstraction has 5863 states and 8915 transitions. [2022-10-16 13:04:33,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 8915 transitions. [2022-10-16 13:04:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-10-16 13:04:33,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:33,410 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 8, 8, 8, 8, 8, 8, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:33,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 13:04:33,411 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:33,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash -662029726, now seen corresponding path program 1 times [2022-10-16 13:04:33,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:33,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995852532] [2022-10-16 13:04:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:33,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3215 trivial. 0 not checked. [2022-10-16 13:04:33,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:33,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995852532] [2022-10-16 13:04:33,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995852532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:33,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:04:33,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:04:33,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279967438] [2022-10-16 13:04:33,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:33,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:04:33,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:33,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:04:33,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:04:33,763 INFO L87 Difference]: Start difference. First operand 5863 states and 8915 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:35,253 INFO L93 Difference]: Finished difference Result 5986 states and 9233 transitions. [2022-10-16 13:04:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:04:35,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 313 [2022-10-16 13:04:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:35,265 INFO L225 Difference]: With dead ends: 5986 [2022-10-16 13:04:35,265 INFO L226 Difference]: Without dead ends: 5981 [2022-10-16 13:04:35,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 13:04:35,268 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 499 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:35,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1521 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:04:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2022-10-16 13:04:36,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 5858. [2022-10-16 13:04:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 4982 states have (on average 1.4556403050983542) internal successors, (7252), 5069 states have internal predecessors, (7252), 783 states have call successors, (783), 44 states have call predecessors, (783), 48 states have return successors, (808), 786 states have call predecessors, (808), 783 states have call successors, (808) [2022-10-16 13:04:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 8843 transitions. [2022-10-16 13:04:36,464 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 8843 transitions. Word has length 313 [2022-10-16 13:04:36,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:36,464 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 8843 transitions. [2022-10-16 13:04:36,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:36,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 8843 transitions. [2022-10-16 13:04:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-10-16 13:04:36,467 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:36,468 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 8, 8, 8, 8, 8, 8, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:36,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-16 13:04:36,468 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1959213258, now seen corresponding path program 1 times [2022-10-16 13:04:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:36,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665451495] [2022-10-16 13:04:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 3041 trivial. 0 not checked. [2022-10-16 13:04:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:37,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665451495] [2022-10-16 13:04:37,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665451495] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:37,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511325136] [2022-10-16 13:04:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:37,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:37,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:37,343 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:37,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 13:04:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:37,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 13:04:37,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 3041 trivial. 0 not checked. [2022-10-16 13:04:37,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:04:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 3041 trivial. 0 not checked. [2022-10-16 13:04:38,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511325136] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:04:38,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:04:38,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 21 [2022-10-16 13:04:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171845780] [2022-10-16 13:04:38,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:04:38,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 13:04:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:38,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 13:04:38,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:04:38,201 INFO L87 Difference]: Start difference. First operand 5858 states and 8843 transitions. Second operand has 21 states, 21 states have (on average 7.714285714285714) internal successors, (162), 20 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:39,423 INFO L93 Difference]: Finished difference Result 9029 states and 13616 transitions. [2022-10-16 13:04:39,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 13:04:39,424 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.714285714285714) internal successors, (162), 20 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 321 [2022-10-16 13:04:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:39,431 INFO L225 Difference]: With dead ends: 9029 [2022-10-16 13:04:39,432 INFO L226 Difference]: Without dead ends: 3727 [2022-10-16 13:04:39,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:04:39,442 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 194 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:39,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3083 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:04:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-10-16 13:04:40,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3686. [2022-10-16 13:04:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3174 states have (on average 1.3749212350346567) internal successors, (4364), 3241 states have internal predecessors, (4364), 419 states have call successors, (419), 44 states have call predecessors, (419), 48 states have return successors, (436), 422 states have call predecessors, (436), 419 states have call successors, (436) [2022-10-16 13:04:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5219 transitions. [2022-10-16 13:04:40,116 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5219 transitions. Word has length 321 [2022-10-16 13:04:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:40,117 INFO L495 AbstractCegarLoop]: Abstraction has 3686 states and 5219 transitions. [2022-10-16 13:04:40,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.714285714285714) internal successors, (162), 20 states have internal predecessors, (162), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5219 transitions. [2022-10-16 13:04:40,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-10-16 13:04:40,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:40,120 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:40,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 13:04:40,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 13:04:40,333 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 113880035, now seen corresponding path program 3 times [2022-10-16 13:04:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:40,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652223916] [2022-10-16 13:04:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:40,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:04:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 13:04:44,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:44,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652223916] [2022-10-16 13:04:44,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652223916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:44,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779326797] [2022-10-16 13:04:44,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:04:44,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:44,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:44,264 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:44,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 13:04:44,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:04:44,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:04:44,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 13:04:44,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6368 trivial. 0 not checked. [2022-10-16 13:04:45,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:04:45,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779326797] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:45,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:04:45,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [49] total 57 [2022-10-16 13:04:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634612171] [2022-10-16 13:04:45,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:45,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:04:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:04:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=2000, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 13:04:45,052 INFO L87 Difference]: Start difference. First operand 3686 states and 5219 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:04:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:45,902 INFO L93 Difference]: Finished difference Result 7400 states and 10486 transitions. [2022-10-16 13:04:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:04:45,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 341 [2022-10-16 13:04:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:45,910 INFO L225 Difference]: With dead ends: 7400 [2022-10-16 13:04:45,910 INFO L226 Difference]: Without dead ends: 3766 [2022-10-16 13:04:45,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1202, Invalid=2220, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 13:04:45,918 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 61 mSDsluCounter, 5513 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:45,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 6314 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:04:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-10-16 13:04:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3683. [2022-10-16 13:04:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3172 states have (on average 1.37515762925599) internal successors, (4362), 3238 states have internal predecessors, (4362), 419 states have call successors, (419), 44 states have call predecessors, (419), 47 states have return successors, (434), 422 states have call predecessors, (434), 419 states have call successors, (434) [2022-10-16 13:04:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 5215 transitions. [2022-10-16 13:04:46,596 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 5215 transitions. Word has length 341 [2022-10-16 13:04:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 3683 states and 5215 transitions. [2022-10-16 13:04:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 13:04:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 5215 transitions. [2022-10-16 13:04:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-10-16 13:04:46,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:46,599 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:46,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-10-16 13:04:46,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:46,800 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1844614757, now seen corresponding path program 1 times [2022-10-16 13:04:46,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:46,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701956623] [2022-10-16 13:04:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:46,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:04:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6385 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-16 13:04:49,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:49,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701956623] [2022-10-16 13:04:49,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701956623] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:49,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235212982] [2022-10-16 13:04:49,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:49,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:49,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:49,981 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:49,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 13:04:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:50,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 2129 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 13:04:50,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6385 backedges. 5774 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-10-16 13:04:52,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:04:52,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235212982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:04:52,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:04:52,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [49] total 83 [2022-10-16 13:04:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335683522] [2022-10-16 13:04:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:04:52,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 13:04:52,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 13:04:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1772, Invalid=5034, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 13:04:52,376 INFO L87 Difference]: Start difference. First operand 3683 states and 5215 transitions. Second operand has 35 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:04:53,457 INFO L93 Difference]: Finished difference Result 5679 states and 8000 transitions. [2022-10-16 13:04:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 13:04:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 347 [2022-10-16 13:04:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:04:53,463 INFO L225 Difference]: With dead ends: 5679 [2022-10-16 13:04:53,463 INFO L226 Difference]: Without dead ends: 2261 [2022-10-16 13:04:53,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1772, Invalid=5034, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 13:04:53,472 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1828 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:04:53,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 2278 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:04:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-10-16 13:04:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2178. [2022-10-16 13:04:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 1856 states have (on average 1.3270474137931034) internal successors, (2463), 1905 states have internal predecessors, (2463), 237 states have call successors, (237), 44 states have call predecessors, (237), 47 states have return successors, (248), 240 states have call predecessors, (248), 237 states have call successors, (248) [2022-10-16 13:04:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 2948 transitions. [2022-10-16 13:04:54,055 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 2948 transitions. Word has length 347 [2022-10-16 13:04:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:04:54,056 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 2948 transitions. [2022-10-16 13:04:54,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:04:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 2948 transitions. [2022-10-16 13:04:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-10-16 13:04:54,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:04:54,058 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 17, 17, 16, 16, 16, 16, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:04:54,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 13:04:54,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:54,259 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:04:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:04:54,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1008431877, now seen corresponding path program 1 times [2022-10-16 13:04:54,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:04:54,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348018364] [2022-10-16 13:04:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:54,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:04:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:04:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:04:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:04:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:04:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3813 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:04:55,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:04:55,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348018364] [2022-10-16 13:04:55,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348018364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:04:55,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136234634] [2022-10-16 13:04:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:04:55,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:04:55,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:04:55,333 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:04:55,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 13:04:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:04:56,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 13:04:56,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:04:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3813 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:04:56,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:04:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3813 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:04:57,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136234634] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:04:57,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:04:57,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 37 [2022-10-16 13:04:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25388154] [2022-10-16 13:04:57,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:04:57,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 13:04:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:04:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 13:04:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:04:57,414 INFO L87 Difference]: Start difference. First operand 2178 states and 2948 transitions. Second operand has 38 states, 37 states have (on average 7.27027027027027) internal successors, (269), 37 states have internal predecessors, (269), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:12,067 INFO L93 Difference]: Finished difference Result 22645 states and 35902 transitions. [2022-10-16 13:05:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 13:05:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 7.27027027027027) internal successors, (269), 37 states have internal predecessors, (269), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 361 [2022-10-16 13:05:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:12,132 INFO L225 Difference]: With dead ends: 22645 [2022-10-16 13:05:12,132 INFO L226 Difference]: Without dead ends: 22642 [2022-10-16 13:05:12,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:05:12,142 INFO L413 NwaCegarLoop]: 2491 mSDtfsCounter, 12371 mSDsluCounter, 16128 mSDsCounter, 0 mSdLazyCounter, 7442 mSolverCounterSat, 1919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13569 SdHoareTripleChecker+Valid, 18619 SdHoareTripleChecker+Invalid, 9361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1919 IncrementalHoareTripleChecker+Valid, 7442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:12,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13569 Valid, 18619 Invalid, 9361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1919 Valid, 7442 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-10-16 13:05:12,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22642 states. [2022-10-16 13:05:13,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22642 to 3480. [2022-10-16 13:05:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 2976 states have (on average 1.3870967741935485) internal successors, (4128), 3035 states have internal predecessors, (4128), 419 states have call successors, (419), 44 states have call predecessors, (419), 47 states have return successors, (434), 422 states have call predecessors, (434), 419 states have call successors, (434) [2022-10-16 13:05:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 4981 transitions. [2022-10-16 13:05:13,496 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 4981 transitions. Word has length 361 [2022-10-16 13:05:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:13,497 INFO L495 AbstractCegarLoop]: Abstraction has 3480 states and 4981 transitions. [2022-10-16 13:05:13,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 7.27027027027027) internal successors, (269), 37 states have internal predecessors, (269), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 4981 transitions. [2022-10-16 13:05:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-10-16 13:05:13,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:13,501 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 18, 18, 18, 18, 18, 18, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:13,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-10-16 13:05:13,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-10-16 13:05:13,715 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:05:13,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:13,716 INFO L85 PathProgramCache]: Analyzing trace with hash 187868498, now seen corresponding path program 1 times [2022-10-16 13:05:13,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:13,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023260439] [2022-10-16 13:05:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:05:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:05:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:05:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:05:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 0 proven. 936 refuted. 0 times theorem prover too weak. 3047 trivial. 0 not checked. [2022-10-16 13:05:14,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:14,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023260439] [2022-10-16 13:05:14,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023260439] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:14,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715726861] [2022-10-16 13:05:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:14,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:14,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:14,947 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:14,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 13:05:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:15,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 13:05:15,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 0 proven. 936 refuted. 0 times theorem prover too weak. 3047 trivial. 0 not checked. [2022-10-16 13:05:15,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:16,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 0 proven. 936 refuted. 0 times theorem prover too weak. 3047 trivial. 0 not checked. [2022-10-16 13:05:16,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715726861] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:16,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:16,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 41 [2022-10-16 13:05:16,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675624349] [2022-10-16 13:05:16,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:16,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 13:05:16,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 13:05:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 13:05:16,614 INFO L87 Difference]: Start difference. First operand 3480 states and 4981 transitions. Second operand has 41 states, 41 states have (on average 6.853658536585366) internal successors, (281), 40 states have internal predecessors, (281), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:05:18,032 INFO L93 Difference]: Finished difference Result 5468 states and 7793 transitions. [2022-10-16 13:05:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 13:05:18,033 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 6.853658536585366) internal successors, (281), 40 states have internal predecessors, (281), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 387 [2022-10-16 13:05:18,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:05:18,040 INFO L225 Difference]: With dead ends: 5468 [2022-10-16 13:05:18,040 INFO L226 Difference]: Without dead ends: 2461 [2022-10-16 13:05:18,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 13:05:18,046 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 302 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 4411 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:05:18,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 4411 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:05:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2022-10-16 13:05:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2418. [2022-10-16 13:05:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2096 states have (on average 1.2915076335877862) internal successors, (2707), 2145 states have internal predecessors, (2707), 237 states have call successors, (237), 44 states have call predecessors, (237), 47 states have return successors, (248), 240 states have call predecessors, (248), 237 states have call successors, (248) [2022-10-16 13:05:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3192 transitions. [2022-10-16 13:05:18,681 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3192 transitions. Word has length 387 [2022-10-16 13:05:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:05:18,681 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3192 transitions. [2022-10-16 13:05:18,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 6.853658536585366) internal successors, (281), 40 states have internal predecessors, (281), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:05:18,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3192 transitions. [2022-10-16 13:05:18,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-10-16 13:05:18,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:05:18,686 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 32, 32, 32, 32, 32, 32, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:05:18,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-10-16 13:05:18,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 13:05:18,900 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-10-16 13:05:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:05:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash 819674635, now seen corresponding path program 2 times [2022-10-16 13:05:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:05:18,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227352848] [2022-10-16 13:05:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:05:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:05:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:05:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:05:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:05:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:05:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:05:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:05:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6513 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:05:21,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:05:21,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227352848] [2022-10-16 13:05:21,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227352848] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:05:21,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813353880] [2022-10-16 13:05:21,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:05:21,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:05:21,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:05:21,938 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:05:21,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 13:05:22,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:05:22,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:05:22,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 13:05:22,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:05:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6513 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:05:23,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:05:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6513 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2022-10-16 13:05:25,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813353880] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:05:25,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:05:25,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36, 36] total 73 [2022-10-16 13:05:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834597467] [2022-10-16 13:05:25,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:05:25,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-10-16 13:05:25,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:05:25,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-10-16 13:05:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2630, Invalid=2772, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 13:05:25,779 INFO L87 Difference]: Start difference. First operand 2418 states and 3192 transitions. Second operand has 74 states, 73 states have (on average 6.6438356164383565) internal successors, (485), 73 states have internal predecessors, (485), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)