/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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:52:23,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:52:23,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:52:23,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:52:23,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:52:23,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:52:23,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:52:23,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:52:23,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:52:23,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:52:23,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:52:23,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:52:23,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:52:23,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:52:23,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:52:23,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:52:23,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:52:23,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:52:23,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:52:23,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:52:23,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:52:23,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:52:23,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:52:23,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:52:23,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 21:52:23,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:52:23,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:52:23,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:52:23,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:52:23,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:52:23,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:52:23,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:52:23,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:52:23,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:52:23,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:52:23,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:52:23,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:52:23,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:52:23,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:52:23,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:52:23,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:52:23,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:52:23,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:52:23,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:52:23,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:52:23,455 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:52:23,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:52:23,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:52:23,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:52:23,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:52:23,458 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:52:23,459 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:52:23,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:52:23,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:52:23,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:52:23,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:52:23,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:52:23,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:52:23,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:52:23,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:52:23,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:52:23,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:52:23,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:52:23,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:52:23,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:52:23,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:52:23,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:52:23,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:52:23,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:52:23,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:52:23,963 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:52:23,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2022-10-15 21:52:24,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc644f88/d4acce26fe9b40f49ff23d3b3b380694/FLAGc09001935 [2022-10-15 21:52:24,691 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:52:24,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2022-10-15 21:52:24,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc644f88/d4acce26fe9b40f49ff23d3b3b380694/FLAGc09001935 [2022-10-15 21:52:25,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc644f88/d4acce26fe9b40f49ff23d3b3b380694 [2022-10-15 21:52:25,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:52:25,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:52:25,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:52:25,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:52:25,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:52:25,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f49813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25, skipping insertion in model container [2022-10-15 21:52:25,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:52:25,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:52:25,536 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2022-10-15 21:52:25,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:52:25,555 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:52:25,634 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2022-10-15 21:52:25,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:52:25,664 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:52:25,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25 WrapperNode [2022-10-15 21:52:25,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:52:25,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:52:25,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:52:25,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:52:25,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,756 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 423 [2022-10-15 21:52:25,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:52:25,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:52:25,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:52:25,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:52:25,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,801 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:52:25,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:52:25,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:52:25,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:52:25,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (1/1) ... [2022-10-15 21:52:25,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:52:25,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:25,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:52:25,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:52:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:52:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-10-15 21:52:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-10-15 21:52:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-15 21:52:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-15 21:52:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-10-15 21:52:25,969 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-10-15 21:52:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-10-15 21:52:25,970 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-10-15 21:52:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-10-15 21:52:25,970 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-10-15 21:52:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:52:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:52:25,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:52:26,097 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:52:26,100 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:52:26,964 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:52:26,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:52:26,990 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:52:26,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:52:26 BoogieIcfgContainer [2022-10-15 21:52:26,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:52:27,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:52:27,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:52:27,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:52:27,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:52:25" (1/3) ... [2022-10-15 21:52:27,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f262d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:52:27, skipping insertion in model container [2022-10-15 21:52:27,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:52:25" (2/3) ... [2022-10-15 21:52:27,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f262d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:52:27, skipping insertion in model container [2022-10-15 21:52:27,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:52:26" (3/3) ... [2022-10-15 21:52:27,008 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2022-10-15 21:52:27,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:52:27,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-15 21:52:27,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:52:27,116 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;@a4b006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:52:27,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-15 21:52:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 156 states have (on average 1.6282051282051282) internal successors, (254), 169 states have internal predecessors, (254), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-15 21:52:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:52:27,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:27,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:27,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1286261649, now seen corresponding path program 1 times [2022-10-15 21:52:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:27,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365874302] [2022-10-15 21:52:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:52:27,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:27,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365874302] [2022-10-15 21:52:27,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365874302] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:27,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:52:27,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:52:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634628507] [2022-10-15 21:52:27,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:27,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:27,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:52:27,482 INFO L87 Difference]: Start difference. First operand has 204 states, 156 states have (on average 1.6282051282051282) internal successors, (254), 169 states have internal predecessors, (254), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:52:27,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:27,650 INFO L93 Difference]: Finished difference Result 429 states and 698 transitions. [2022-10-15 21:52:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:27,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:52:27,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:27,669 INFO L225 Difference]: With dead ends: 429 [2022-10-15 21:52:27,669 INFO L226 Difference]: Without dead ends: 223 [2022-10-15 21:52:27,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:52:27,683 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 37 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:27,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 914 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-10-15 21:52:27,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2022-10-15 21:52:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 167 states have (on average 1.5568862275449102) internal successors, (260), 179 states have internal predecessors, (260), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-15 21:52:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 326 transitions. [2022-10-15 21:52:27,767 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 326 transitions. Word has length 11 [2022-10-15 21:52:27,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:27,768 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 326 transitions. [2022-10-15 21:52:27,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:52:27,768 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 326 transitions. [2022-10-15 21:52:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 21:52:27,771 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:27,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:27,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:52:27,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash 740188112, now seen corresponding path program 1 times [2022-10-15 21:52:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:27,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135261827] [2022-10-15 21:52:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:27,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:52:27,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:27,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135261827] [2022-10-15 21:52:27,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135261827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:27,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:52:27,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:52:27,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977638496] [2022-10-15 21:52:27,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:27,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:27,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:27,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:52:27,986 INFO L87 Difference]: Start difference. First operand 216 states and 326 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:52:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:28,042 INFO L93 Difference]: Finished difference Result 455 states and 697 transitions. [2022-10-15 21:52:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-15 21:52:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:28,047 INFO L225 Difference]: With dead ends: 455 [2022-10-15 21:52:28,048 INFO L226 Difference]: Without dead ends: 251 [2022-10-15 21:52:28,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:52:28,051 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 21 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:28,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 908 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:28,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-10-15 21:52:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 247. [2022-10-15 21:52:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 193 states have (on average 1.528497409326425) internal successors, (295), 205 states have internal predecessors, (295), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-15 21:52:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 371 transitions. [2022-10-15 21:52:28,088 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 371 transitions. Word has length 16 [2022-10-15 21:52:28,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:28,089 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 371 transitions. [2022-10-15 21:52:28,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:52:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 371 transitions. [2022-10-15 21:52:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:52:28,092 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:28,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:28,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:52:28,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1638620585, now seen corresponding path program 1 times [2022-10-15 21:52:28,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:28,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121724905] [2022-10-15 21:52:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:52:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:52:28,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:28,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121724905] [2022-10-15 21:52:28,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121724905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:28,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:52:28,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:52:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642819995] [2022-10-15 21:52:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:28,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:28,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:28,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:28,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:52:28,280 INFO L87 Difference]: Start difference. First operand 247 states and 371 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:52:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:28,315 INFO L93 Difference]: Finished difference Result 251 states and 377 transitions. [2022-10-15 21:52:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-10-15 21:52:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:28,340 INFO L225 Difference]: With dead ends: 251 [2022-10-15 21:52:28,341 INFO L226 Difference]: Without dead ends: 250 [2022-10-15 21:52:28,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:52:28,343 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 23 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:28,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 865 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:28,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-15 21:52:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2022-10-15 21:52:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 193 states have (on average 1.5129533678756477) internal successors, (292), 204 states have internal predecessors, (292), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-15 21:52:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 368 transitions. [2022-10-15 21:52:28,372 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 368 transitions. Word has length 29 [2022-10-15 21:52:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:28,372 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 368 transitions. [2022-10-15 21:52:28,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:52:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 368 transitions. [2022-10-15 21:52:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:52:28,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:28,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:28,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:52:28,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash -742368822, now seen corresponding path program 1 times [2022-10-15 21:52:28,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:28,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87642316] [2022-10-15 21:52:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:52:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:52:28,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87642316] [2022-10-15 21:52:28,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87642316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399130661] [2022-10-15 21:52:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:28,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:52:28,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:52:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:28,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:52:28,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:52:28,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:28,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399130661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:28,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:28,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:52:28,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359603247] [2022-10-15 21:52:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:28,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:52:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:28,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:52:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:28,785 INFO L87 Difference]: Start difference. First operand 246 states and 368 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:52:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:28,854 INFO L93 Difference]: Finished difference Result 250 states and 374 transitions. [2022-10-15 21:52:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:52:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-10-15 21:52:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:28,858 INFO L225 Difference]: With dead ends: 250 [2022-10-15 21:52:28,858 INFO L226 Difference]: Without dead ends: 249 [2022-10-15 21:52:28,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:52:28,861 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 47 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:28,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1268 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-15 21:52:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 216. [2022-10-15 21:52:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 169 states have (on average 1.514792899408284) internal successors, (256), 179 states have internal predecessors, (256), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-15 21:52:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 322 transitions. [2022-10-15 21:52:28,882 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 322 transitions. Word has length 30 [2022-10-15 21:52:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:28,883 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 322 transitions. [2022-10-15 21:52:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:52:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 322 transitions. [2022-10-15 21:52:28,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-15 21:52:28,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:28,890 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:28,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:29,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:29,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash -9846762, now seen corresponding path program 1 times [2022-10-15 21:52:29,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:29,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007533111] [2022-10-15 21:52:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:29,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:52:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:52:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:52:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:52:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 21:52:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 21:52:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-15 21:52:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 21:52:29,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:29,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007533111] [2022-10-15 21:52:29,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007533111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:29,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:52:29,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:52:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188078284] [2022-10-15 21:52:29,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:29,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:52:29,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:29,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:52:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:52:29,394 INFO L87 Difference]: Start difference. First operand 216 states and 322 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:52:29,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:29,899 INFO L93 Difference]: Finished difference Result 500 states and 763 transitions. [2022-10-15 21:52:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:52:29,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 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 90 [2022-10-15 21:52:29,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:29,904 INFO L225 Difference]: With dead ends: 500 [2022-10-15 21:52:29,904 INFO L226 Difference]: Without dead ends: 341 [2022-10-15 21:52:29,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:52:29,912 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 216 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:29,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 875 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:52:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-15 21:52:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 216. [2022-10-15 21:52:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 169 states have (on average 1.4911242603550297) internal successors, (252), 179 states have internal predecessors, (252), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-15 21:52:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 318 transitions. [2022-10-15 21:52:29,954 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 318 transitions. Word has length 90 [2022-10-15 21:52:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:29,958 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 318 transitions. [2022-10-15 21:52:29,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:52:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 318 transitions. [2022-10-15 21:52:29,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-15 21:52:29,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:29,969 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:29,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:52:29,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1943976781, now seen corresponding path program 1 times [2022-10-15 21:52:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:29,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180869161] [2022-10-15 21:52:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:52:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:52:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:52:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:52:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:52:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-15 21:52:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 21:52:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-15 21:52:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-15 21:52:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 21:52:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-10-15 21:52:30,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:30,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180869161] [2022-10-15 21:52:30,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180869161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:30,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776465987] [2022-10-15 21:52:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:30,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:30,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:30,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:52:30,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:52:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:30,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:52:30,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:30,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776465987] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:30,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:30,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224606033] [2022-10-15 21:52:30,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:30,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:30,523 INFO L87 Difference]: Start difference. First operand 216 states and 318 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-15 21:52:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:30,602 INFO L93 Difference]: Finished difference Result 416 states and 618 transitions. [2022-10-15 21:52:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:30,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 138 [2022-10-15 21:52:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:30,605 INFO L225 Difference]: With dead ends: 416 [2022-10-15 21:52:30,605 INFO L226 Difference]: Without dead ends: 208 [2022-10-15 21:52:30,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:30,612 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 41 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:30,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 811 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-15 21:52:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-10-15 21:52:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 162 states have (on average 1.4938271604938271) internal successors, (242), 172 states have internal predecessors, (242), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-15 21:52:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 306 transitions. [2022-10-15 21:52:30,640 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 306 transitions. Word has length 138 [2022-10-15 21:52:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:30,644 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 306 transitions. [2022-10-15 21:52:30,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-15 21:52:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 306 transitions. [2022-10-15 21:52:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-15 21:52:30,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:30,658 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:30,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:30,873 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,SelfDestructingSolverStorable5 [2022-10-15 21:52:30,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1436998780, now seen corresponding path program 1 times [2022-10-15 21:52:30,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:30,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311848568] [2022-10-15 21:52:30,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:52:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:52:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:52:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 21:52:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 21:52:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 21:52:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-15 21:52:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:52:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 21:52:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-15 21:52:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-10-15 21:52:31,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:31,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311848568] [2022-10-15 21:52:31,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311848568] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:31,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799770112] [2022-10-15 21:52:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:31,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:31,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:31,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:52:31,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:52:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:31,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-15 21:52:31,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:31,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799770112] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:31,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:31,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336925824] [2022-10-15 21:52:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:31,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:31,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:31,354 INFO L87 Difference]: Start difference. First operand 208 states and 306 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-15 21:52:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:31,447 INFO L93 Difference]: Finished difference Result 409 states and 617 transitions. [2022-10-15 21:52:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-10-15 21:52:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:31,451 INFO L225 Difference]: With dead ends: 409 [2022-10-15 21:52:31,451 INFO L226 Difference]: Without dead ends: 220 [2022-10-15 21:52:31,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:31,454 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 54 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:31,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 803 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-15 21:52:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-10-15 21:52:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 172 states have (on average 1.505813953488372) internal successors, (259), 182 states have internal predecessors, (259), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-15 21:52:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 325 transitions. [2022-10-15 21:52:31,474 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 325 transitions. Word has length 141 [2022-10-15 21:52:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:31,474 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 325 transitions. [2022-10-15 21:52:31,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-15 21:52:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 325 transitions. [2022-10-15 21:52:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-15 21:52:31,477 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:31,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:31,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:31,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:31,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1373940128, now seen corresponding path program 1 times [2022-10-15 21:52:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:31,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67233452] [2022-10-15 21:52:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:31,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:52:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:52:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:52:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:52:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-15 21:52:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:52:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:52:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-15 21:52:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-15 21:52:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-15 21:52:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-15 21:52:31,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:31,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67233452] [2022-10-15 21:52:31,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67233452] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:31,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319955109] [2022-10-15 21:52:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:31,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:31,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:31,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:52:31,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:52:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:32,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:52:32,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 21:52:32,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:52:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-15 21:52:32,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319955109] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:52:32,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:52:32,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-10-15 21:52:32,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522915142] [2022-10-15 21:52:32,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:52:32,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 21:52:32,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:32,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 21:52:32,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:52:32,271 INFO L87 Difference]: Start difference. First operand 220 states and 325 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-15 21:52:33,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:33,146 INFO L93 Difference]: Finished difference Result 493 states and 737 transitions. [2022-10-15 21:52:33,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 21:52:33,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 142 [2022-10-15 21:52:33,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:33,150 INFO L225 Difference]: With dead ends: 493 [2022-10-15 21:52:33,150 INFO L226 Difference]: Without dead ends: 278 [2022-10-15 21:52:33,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:52:33,152 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 204 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:33,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1837 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:52:33,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-10-15 21:52:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2022-10-15 21:52:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 214 states have (on average 1.4579439252336448) internal successors, (312), 224 states have internal predecessors, (312), 41 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-15 21:52:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 394 transitions. [2022-10-15 21:52:33,180 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 394 transitions. Word has length 142 [2022-10-15 21:52:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:33,181 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 394 transitions. [2022-10-15 21:52:33,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-15 21:52:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 394 transitions. [2022-10-15 21:52:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-15 21:52:33,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:33,185 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:33,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:33,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:33,400 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:33,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:33,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1174331586, now seen corresponding path program 1 times [2022-10-15 21:52:33,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:33,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147949125] [2022-10-15 21:52:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:33,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:52:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-15 21:52:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:52:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-15 21:52:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-15 21:52:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 21:52:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-15 21:52:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-15 21:52:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-10-15 21:52:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:33,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147949125] [2022-10-15 21:52:33,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147949125] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:33,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406474367] [2022-10-15 21:52:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:33,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:33,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:33,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:52:33,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:52:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:33,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:33,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-15 21:52:33,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:33,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406474367] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:33,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:33,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146667755] [2022-10-15 21:52:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:33,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:33,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:33,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:33,902 INFO L87 Difference]: Start difference. First operand 270 states and 394 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-15 21:52:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:33,991 INFO L93 Difference]: Finished difference Result 549 states and 814 transitions. [2022-10-15 21:52:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2022-10-15 21:52:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:33,999 INFO L225 Difference]: With dead ends: 549 [2022-10-15 21:52:34,000 INFO L226 Difference]: Without dead ends: 317 [2022-10-15 21:52:34,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:34,005 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 65 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:34,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 809 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:34,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-10-15 21:52:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2022-10-15 21:52:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 254 states have (on average 1.4488188976377954) internal successors, (368), 264 states have internal predecessors, (368), 47 states have call successors, (47), 8 states have call predecessors, (47), 8 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-15 21:52:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 462 transitions. [2022-10-15 21:52:34,052 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 462 transitions. Word has length 175 [2022-10-15 21:52:34,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:34,053 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 462 transitions. [2022-10-15 21:52:34,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-15 21:52:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 462 transitions. [2022-10-15 21:52:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 21:52:34,059 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:34,059 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:34,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:34,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:34,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:34,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:34,268 INFO L85 PathProgramCache]: Analyzing trace with hash -748379833, now seen corresponding path program 1 times [2022-10-15 21:52:34,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:34,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737723279] [2022-10-15 21:52:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:52:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:52:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 21:52:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-15 21:52:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-15 21:52:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-15 21:52:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-15 21:52:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-15 21:52:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:34,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737723279] [2022-10-15 21:52:34,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737723279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591365020] [2022-10-15 21:52:34,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:34,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:34,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:34,553 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) [2022-10-15 21:52:34,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:52:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:34,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:34,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-15 21:52:34,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:34,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591365020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:34,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:34,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:34,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804685099] [2022-10-15 21:52:34,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:34,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:34,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:34,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:34,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:34,784 INFO L87 Difference]: Start difference. First operand 317 states and 462 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-15 21:52:34,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:34,890 INFO L93 Difference]: Finished difference Result 663 states and 974 transitions. [2022-10-15 21:52:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:34,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 177 [2022-10-15 21:52:34,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:34,896 INFO L225 Difference]: With dead ends: 663 [2022-10-15 21:52:34,897 INFO L226 Difference]: Without dead ends: 346 [2022-10-15 21:52:34,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:34,900 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 45 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:34,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 828 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-10-15 21:52:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-10-15 21:52:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 282 states have (on average 1.4184397163120568) internal successors, (400), 292 states have internal predecessors, (400), 47 states have call successors, (47), 9 states have call predecessors, (47), 9 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-15 21:52:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 494 transitions. [2022-10-15 21:52:34,949 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 494 transitions. Word has length 177 [2022-10-15 21:52:34,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:34,952 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 494 transitions. [2022-10-15 21:52:34,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-15 21:52:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 494 transitions. [2022-10-15 21:52:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 21:52:34,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:34,956 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:34,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:35,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:35,172 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash 734309565, now seen corresponding path program 2 times [2022-10-15 21:52:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:35,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074558497] [2022-10-15 21:52:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:35,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:52:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:52:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 21:52:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-15 21:52:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-15 21:52:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-15 21:52:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-15 21:52:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-15 21:52:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:35,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074558497] [2022-10-15 21:52:35,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074558497] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:35,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397935159] [2022-10-15 21:52:35,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:52:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:35,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:35,414 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) [2022-10-15 21:52:35,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:52:35,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:52:35,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:52:35,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:35,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-15 21:52:35,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:35,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397935159] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:35,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:35,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:35,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3596314] [2022-10-15 21:52:35,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:35,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:35,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:35,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:35,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:35,702 INFO L87 Difference]: Start difference. First operand 346 states and 494 transitions. Second operand has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:35,771 INFO L93 Difference]: Finished difference Result 469 states and 686 transitions. [2022-10-15 21:52:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:35,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 177 [2022-10-15 21:52:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:35,776 INFO L225 Difference]: With dead ends: 469 [2022-10-15 21:52:35,777 INFO L226 Difference]: Without dead ends: 468 [2022-10-15 21:52:35,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:35,778 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 121 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:35,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 908 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:35,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-10-15 21:52:35,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 460. [2022-10-15 21:52:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 375 states have (on average 1.4586666666666666) internal successors, (547), 387 states have internal predecessors, (547), 68 states have call successors, (68), 9 states have call predecessors, (68), 9 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-10-15 21:52:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 683 transitions. [2022-10-15 21:52:35,824 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 683 transitions. Word has length 177 [2022-10-15 21:52:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:35,825 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 683 transitions. [2022-10-15 21:52:35,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 683 transitions. [2022-10-15 21:52:35,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 21:52:35,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:35,830 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:35,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:36,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:36,043 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1288760563, now seen corresponding path program 1 times [2022-10-15 21:52:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:36,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307596609] [2022-10-15 21:52:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:36,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:52:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:52:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 21:52:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-15 21:52:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-15 21:52:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-15 21:52:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-15 21:52:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-15 21:52:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:36,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:36,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307596609] [2022-10-15 21:52:36,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307596609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:36,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293209711] [2022-10-15 21:52:36,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:36,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:36,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:36,302 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) [2022-10-15 21:52:36,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:52:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:36,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-10-15 21:52:36,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:36,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293209711] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:36,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:36,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562989492] [2022-10-15 21:52:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:36,493 INFO L87 Difference]: Start difference. First operand 460 states and 683 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:36,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:36,588 INFO L93 Difference]: Finished difference Result 888 states and 1347 transitions. [2022-10-15 21:52:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:36,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 178 [2022-10-15 21:52:36,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:36,593 INFO L225 Difference]: With dead ends: 888 [2022-10-15 21:52:36,593 INFO L226 Difference]: Without dead ends: 470 [2022-10-15 21:52:36,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:36,597 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 48 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:36,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 796 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-10-15 21:52:36,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-10-15 21:52:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 383 states have (on average 1.4621409921671018) internal successors, (560), 395 states have internal predecessors, (560), 69 states have call successors, (69), 10 states have call predecessors, (69), 10 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-10-15 21:52:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 698 transitions. [2022-10-15 21:52:36,639 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 698 transitions. Word has length 178 [2022-10-15 21:52:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:36,639 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 698 transitions. [2022-10-15 21:52:36,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 698 transitions. [2022-10-15 21:52:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-15 21:52:36,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:36,644 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:36,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:36,858 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,SelfDestructingSolverStorable11 [2022-10-15 21:52:36,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:36,860 INFO L85 PathProgramCache]: Analyzing trace with hash 566713947, now seen corresponding path program 1 times [2022-10-15 21:52:36,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:36,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474941291] [2022-10-15 21:52:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:36,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-15 21:52:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-15 21:52:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-15 21:52:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-15 21:52:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-15 21:52:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-15 21:52:37,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:37,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474941291] [2022-10-15 21:52:37,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474941291] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:37,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133798758] [2022-10-15 21:52:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:37,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:37,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:37,105 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) [2022-10-15 21:52:37,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:52:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:37,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-15 21:52:37,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:37,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133798758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:37,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:37,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:37,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991287844] [2022-10-15 21:52:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:37,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:37,294 INFO L87 Difference]: Start difference. First operand 470 states and 698 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:37,368 INFO L93 Difference]: Finished difference Result 756 states and 1154 transitions. [2022-10-15 21:52:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2022-10-15 21:52:37,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:37,373 INFO L225 Difference]: With dead ends: 756 [2022-10-15 21:52:37,374 INFO L226 Difference]: Without dead ends: 477 [2022-10-15 21:52:37,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:37,377 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 20 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:37,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 847 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:37,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-10-15 21:52:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2022-10-15 21:52:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 388 states have (on average 1.4639175257731958) internal successors, (568), 401 states have internal predecessors, (568), 70 states have call successors, (70), 11 states have call predecessors, (70), 11 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-10-15 21:52:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 708 transitions. [2022-10-15 21:52:37,421 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 708 transitions. Word has length 179 [2022-10-15 21:52:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:37,421 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 708 transitions. [2022-10-15 21:52:37,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 708 transitions. [2022-10-15 21:52:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-10-15 21:52:37,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:37,426 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:37,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:37,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 21:52:37,640 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:37,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash 361978791, now seen corresponding path program 1 times [2022-10-15 21:52:37,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:37,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625677978] [2022-10-15 21:52:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:37,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-15 21:52:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-15 21:52:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 21:52:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 21:52:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:37,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:37,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625677978] [2022-10-15 21:52:37,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625677978] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:37,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833270531] [2022-10-15 21:52:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:37,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:37,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:37,859 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) [2022-10-15 21:52:37,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:52:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-10-15 21:52:38,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:38,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833270531] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:38,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:38,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:38,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081180290] [2022-10-15 21:52:38,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:38,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:38,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:38,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:38,048 INFO L87 Difference]: Start difference. First operand 477 states and 708 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:38,140 INFO L93 Difference]: Finished difference Result 759 states and 1155 transitions. [2022-10-15 21:52:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:38,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 181 [2022-10-15 21:52:38,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:38,147 INFO L225 Difference]: With dead ends: 759 [2022-10-15 21:52:38,148 INFO L226 Difference]: Without dead ends: 484 [2022-10-15 21:52:38,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:38,152 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 18 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 847 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-10-15 21:52:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2022-10-15 21:52:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 393 states have (on average 1.465648854961832) internal successors, (576), 407 states have internal predecessors, (576), 71 states have call successors, (71), 12 states have call predecessors, (71), 12 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-10-15 21:52:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 718 transitions. [2022-10-15 21:52:38,218 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 718 transitions. Word has length 181 [2022-10-15 21:52:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:38,220 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 718 transitions. [2022-10-15 21:52:38,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 718 transitions. [2022-10-15 21:52:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-15 21:52:38,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:38,230 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:38,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:52:38,445 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1925292617, now seen corresponding path program 1 times [2022-10-15 21:52:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:38,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265541183] [2022-10-15 21:52:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-15 21:52:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-15 21:52:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-15 21:52:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:38,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:38,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265541183] [2022-10-15 21:52:38,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265541183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:38,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075161133] [2022-10-15 21:52:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:38,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:38,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:38,721 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) [2022-10-15 21:52:38,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 21:52:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:38,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:38,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-10-15 21:52:38,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:38,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075161133] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:38,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:38,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:38,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551857377] [2022-10-15 21:52:38,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:38,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:38,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:38,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:38,919 INFO L87 Difference]: Start difference. First operand 484 states and 718 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:39,027 INFO L93 Difference]: Finished difference Result 772 states and 1181 transitions. [2022-10-15 21:52:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 182 [2022-10-15 21:52:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:39,037 INFO L225 Difference]: With dead ends: 772 [2022-10-15 21:52:39,037 INFO L226 Difference]: Without dead ends: 520 [2022-10-15 21:52:39,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:39,042 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 57 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:39,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 792 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:39,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-10-15 21:52:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2022-10-15 21:52:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 423 states have (on average 1.4822695035460993) internal successors, (627), 437 states have internal predecessors, (627), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-10-15 21:52:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 775 transitions. [2022-10-15 21:52:39,088 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 775 transitions. Word has length 182 [2022-10-15 21:52:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:39,088 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 775 transitions. [2022-10-15 21:52:39,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 775 transitions. [2022-10-15 21:52:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-15 21:52:39,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:39,094 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:39,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:39,307 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,SelfDestructingSolverStorable14 [2022-10-15 21:52:39,307 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1949322248, now seen corresponding path program 1 times [2022-10-15 21:52:39,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:39,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120328316] [2022-10-15 21:52:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-15 21:52:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-15 21:52:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:39,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:39,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120328316] [2022-10-15 21:52:39,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120328316] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:39,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086171785] [2022-10-15 21:52:39,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:39,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:39,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:39,553 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) [2022-10-15 21:52:39,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 21:52:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:39,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:39,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-10-15 21:52:39,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:39,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086171785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:39,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:39,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-15 21:52:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837922813] [2022-10-15 21:52:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:39,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:39,728 INFO L87 Difference]: Start difference. First operand 520 states and 775 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:39,814 INFO L93 Difference]: Finished difference Result 757 states and 1133 transitions. [2022-10-15 21:52:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:39,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2022-10-15 21:52:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:39,820 INFO L225 Difference]: With dead ends: 757 [2022-10-15 21:52:39,820 INFO L226 Difference]: Without dead ends: 528 [2022-10-15 21:52:39,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:39,823 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 21 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:39,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 815 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-10-15 21:52:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-10-15 21:52:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 429 states have (on average 1.4825174825174825) internal successors, (636), 443 states have internal predecessors, (636), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-10-15 21:52:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 786 transitions. [2022-10-15 21:52:39,870 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 786 transitions. Word has length 183 [2022-10-15 21:52:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:39,871 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 786 transitions. [2022-10-15 21:52:39,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 786 transitions. [2022-10-15 21:52:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-15 21:52:39,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:39,876 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:39,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:40,090 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,SelfDestructingSolverStorable15 [2022-10-15 21:52:40,090 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:40,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:40,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1284150325, now seen corresponding path program 1 times [2022-10-15 21:52:40,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:40,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218750869] [2022-10-15 21:52:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-15 21:52:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-15 21:52:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-15 21:52:40,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:40,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218750869] [2022-10-15 21:52:40,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218750869] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:40,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264655610] [2022-10-15 21:52:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:40,344 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) [2022-10-15 21:52:40,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 21:52:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:40,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:40,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-15 21:52:40,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:40,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264655610] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:40,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:40,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:40,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077846101] [2022-10-15 21:52:40,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:40,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:40,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:40,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:40,588 INFO L87 Difference]: Start difference. First operand 528 states and 786 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:40,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:40,642 INFO L93 Difference]: Finished difference Result 528 states and 786 transitions. [2022-10-15 21:52:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:40,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 184 [2022-10-15 21:52:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:40,649 INFO L225 Difference]: With dead ends: 528 [2022-10-15 21:52:40,649 INFO L226 Difference]: Without dead ends: 527 [2022-10-15 21:52:40,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:40,652 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 120 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:40,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 697 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-10-15 21:52:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2022-10-15 21:52:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 429 states have (on average 1.4801864801864801) internal successors, (635), 442 states have internal predecessors, (635), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-10-15 21:52:40,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 785 transitions. [2022-10-15 21:52:40,696 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 785 transitions. Word has length 184 [2022-10-15 21:52:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:40,717 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 785 transitions. [2022-10-15 21:52:40,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 785 transitions. [2022-10-15 21:52:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-15 21:52:40,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:40,722 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:40,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:40,936 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,SelfDestructingSolverStorable16 [2022-10-15 21:52:40,936 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -493047952, now seen corresponding path program 1 times [2022-10-15 21:52:40,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:40,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570060550] [2022-10-15 21:52:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-10-15 21:52:41,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:41,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570060550] [2022-10-15 21:52:41,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570060550] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:41,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499553705] [2022-10-15 21:52:41,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:41,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:41,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:41,180 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) [2022-10-15 21:52:41,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 21:52:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:41,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-10-15 21:52:41,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:41,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499553705] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:41,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:41,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:41,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131224674] [2022-10-15 21:52:41,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:41,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:41,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:41,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:41,389 INFO L87 Difference]: Start difference. First operand 527 states and 785 transitions. Second operand has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:41,468 INFO L93 Difference]: Finished difference Result 856 states and 1289 transitions. [2022-10-15 21:52:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 187 [2022-10-15 21:52:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:41,475 INFO L225 Difference]: With dead ends: 856 [2022-10-15 21:52:41,475 INFO L226 Difference]: Without dead ends: 619 [2022-10-15 21:52:41,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:41,478 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 99 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:41,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1056 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-10-15 21:52:41,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 548. [2022-10-15 21:52:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 447 states have (on average 1.4787472035794182) internal successors, (661), 459 states have internal predecessors, (661), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-15 21:52:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2022-10-15 21:52:41,522 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 187 [2022-10-15 21:52:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:41,523 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2022-10-15 21:52:41,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2022-10-15 21:52:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-15 21:52:41,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:41,528 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:41,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:41,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:41,743 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:41,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1895383056, now seen corresponding path program 1 times [2022-10-15 21:52:41,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:41,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147482027] [2022-10-15 21:52:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:41,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-10-15 21:52:41,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:41,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147482027] [2022-10-15 21:52:41,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147482027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:41,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724200578] [2022-10-15 21:52:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:41,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:41,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:41,964 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) [2022-10-15 21:52:41,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 21:52:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:42,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-10-15 21:52:42,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:42,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724200578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:42,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:42,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:42,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996545509] [2022-10-15 21:52:42,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:42,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:42,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:42,196 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:42,272 INFO L93 Difference]: Finished difference Result 685 states and 1040 transitions. [2022-10-15 21:52:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 188 [2022-10-15 21:52:42,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:42,278 INFO L225 Difference]: With dead ends: 685 [2022-10-15 21:52:42,279 INFO L226 Difference]: Without dead ends: 684 [2022-10-15 21:52:42,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:42,281 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 126 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:42,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1115 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-10-15 21:52:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 547. [2022-10-15 21:52:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 447 states have (on average 1.4742729306487696) internal successors, (659), 458 states have internal predecessors, (659), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-15 21:52:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 817 transitions. [2022-10-15 21:52:42,331 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 817 transitions. Word has length 188 [2022-10-15 21:52:42,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:42,332 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 817 transitions. [2022-10-15 21:52:42,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:52:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 817 transitions. [2022-10-15 21:52:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-10-15 21:52:42,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:42,338 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:42,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:42,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:42,552 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:42,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1559391134, now seen corresponding path program 1 times [2022-10-15 21:52:42,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:42,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469038310] [2022-10-15 21:52:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-15 21:52:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:42,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469038310] [2022-10-15 21:52:42,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469038310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:42,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001364566] [2022-10-15 21:52:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:42,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:42,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:42,758 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) [2022-10-15 21:52:42,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-15 21:52:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:42,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:42,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-15 21:52:42,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:42,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001364566] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:42,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:42,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631645677] [2022-10-15 21:52:42,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:42,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:42,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:42,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:42,956 INFO L87 Difference]: Start difference. First operand 547 states and 817 transitions. Second operand has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:43,020 INFO L93 Difference]: Finished difference Result 618 states and 924 transitions. [2022-10-15 21:52:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-10-15 21:52:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:43,027 INFO L225 Difference]: With dead ends: 618 [2022-10-15 21:52:43,027 INFO L226 Difference]: Without dead ends: 617 [2022-10-15 21:52:43,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:43,029 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 95 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:43,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1023 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-10-15 21:52:43,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 549. [2022-10-15 21:52:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 449 states have (on average 1.4721603563474388) internal successors, (661), 460 states have internal predecessors, (661), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-15 21:52:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 819 transitions. [2022-10-15 21:52:43,073 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 819 transitions. Word has length 195 [2022-10-15 21:52:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:43,074 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 819 transitions. [2022-10-15 21:52:43,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:43,074 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 819 transitions. [2022-10-15 21:52:43,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-15 21:52:43,078 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:43,079 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:43,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:43,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:43,293 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:43,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1096485294, now seen corresponding path program 1 times [2022-10-15 21:52:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:43,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927083137] [2022-10-15 21:52:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-15 21:52:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927083137] [2022-10-15 21:52:43,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927083137] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:43,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993075320] [2022-10-15 21:52:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:43,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:43,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:43,525 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) [2022-10-15 21:52:43,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-15 21:52:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:43,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:43,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-15 21:52:43,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:43,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993075320] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:43,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:43,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:43,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490120199] [2022-10-15 21:52:43,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:43,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:43,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:43,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:43,707 INFO L87 Difference]: Start difference. First operand 549 states and 819 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:43,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:43,779 INFO L93 Difference]: Finished difference Result 689 states and 1044 transitions. [2022-10-15 21:52:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:43,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-10-15 21:52:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:43,786 INFO L225 Difference]: With dead ends: 689 [2022-10-15 21:52:43,786 INFO L226 Difference]: Without dead ends: 688 [2022-10-15 21:52:43,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:43,788 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 122 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:43,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-10-15 21:52:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 551. [2022-10-15 21:52:43,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 451 states have (on average 1.4700665188470066) internal successors, (663), 462 states have internal predecessors, (663), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-15 21:52:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 821 transitions. [2022-10-15 21:52:43,832 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 821 transitions. Word has length 196 [2022-10-15 21:52:43,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:43,833 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 821 transitions. [2022-10-15 21:52:43,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 821 transitions. [2022-10-15 21:52:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-15 21:52:43,838 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:43,838 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:43,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:44,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:44,053 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash -319882526, now seen corresponding path program 1 times [2022-10-15 21:52:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:44,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989976438] [2022-10-15 21:52:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-15 21:52:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-15 21:52:44,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989976438] [2022-10-15 21:52:44,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989976438] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:44,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975018767] [2022-10-15 21:52:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:44,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:44,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:44,255 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) [2022-10-15 21:52:44,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-15 21:52:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:44,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:52:44,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-15 21:52:44,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:44,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975018767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:44,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:44,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-15 21:52:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487185226] [2022-10-15 21:52:44,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:44,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:52:44,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:44,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:52:44,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:52:44,505 INFO L87 Difference]: Start difference. First operand 551 states and 821 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-15 21:52:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:44,665 INFO L93 Difference]: Finished difference Result 1000 states and 1516 transitions. [2022-10-15 21:52:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:52:44,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 197 [2022-10-15 21:52:44,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:44,673 INFO L225 Difference]: With dead ends: 1000 [2022-10-15 21:52:44,673 INFO L226 Difference]: Without dead ends: 752 [2022-10-15 21:52:44,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:52:44,677 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 280 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:44,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1750 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-10-15 21:52:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 562. [2022-10-15 21:52:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 461 states have (on average 1.472885032537961) internal successors, (679), 471 states have internal predecessors, (679), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 841 transitions. [2022-10-15 21:52:44,736 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 841 transitions. Word has length 197 [2022-10-15 21:52:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:44,737 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 841 transitions. [2022-10-15 21:52:44,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-15 21:52:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 841 transitions. [2022-10-15 21:52:44,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-10-15 21:52:44,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:44,742 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:44,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:44,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:44,957 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1326423318, now seen corresponding path program 1 times [2022-10-15 21:52:44,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:44,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78989038] [2022-10-15 21:52:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-15 21:52:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-15 21:52:45,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:45,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78989038] [2022-10-15 21:52:45,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78989038] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:45,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059715313] [2022-10-15 21:52:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:45,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:45,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:45,154 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) [2022-10-15 21:52:45,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-15 21:52:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:52:45,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-15 21:52:45,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:45,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059715313] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:45,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:45,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:45,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494267375] [2022-10-15 21:52:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:45,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:45,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:45,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:45,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:45,360 INFO L87 Difference]: Start difference. First operand 562 states and 841 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:45,456 INFO L93 Difference]: Finished difference Result 677 states and 1024 transitions. [2022-10-15 21:52:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:45,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 198 [2022-10-15 21:52:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:45,463 INFO L225 Difference]: With dead ends: 677 [2022-10-15 21:52:45,464 INFO L226 Difference]: Without dead ends: 676 [2022-10-15 21:52:45,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:45,466 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 124 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:45,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1097 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-10-15 21:52:45,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 557. [2022-10-15 21:52:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 457 states have (on average 1.4726477024070022) internal successors, (673), 466 states have internal predecessors, (673), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 835 transitions. [2022-10-15 21:52:45,514 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 835 transitions. Word has length 198 [2022-10-15 21:52:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:45,515 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 835 transitions. [2022-10-15 21:52:45,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:52:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 835 transitions. [2022-10-15 21:52:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-10-15 21:52:45,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:45,519 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:45,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:45,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:45,732 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:45,733 INFO L85 PathProgramCache]: Analyzing trace with hash -848504052, now seen corresponding path program 1 times [2022-10-15 21:52:45,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:45,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614475631] [2022-10-15 21:52:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:45,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-15 21:52:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:45,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:45,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614475631] [2022-10-15 21:52:45,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614475631] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:45,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29930342] [2022-10-15 21:52:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:45,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:45,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:45,995 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) [2022-10-15 21:52:46,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-15 21:52:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:46,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:46,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:46,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29930342] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:46,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:46,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:46,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294054857] [2022-10-15 21:52:46,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:46,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:46,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:46,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:46,217 INFO L87 Difference]: Start difference. First operand 557 states and 835 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:46,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:46,290 INFO L93 Difference]: Finished difference Result 628 states and 940 transitions. [2022-10-15 21:52:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:46,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 203 [2022-10-15 21:52:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:46,297 INFO L225 Difference]: With dead ends: 628 [2022-10-15 21:52:46,297 INFO L226 Difference]: Without dead ends: 627 [2022-10-15 21:52:46,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:46,299 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 91 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:46,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1017 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-10-15 21:52:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 559. [2022-10-15 21:52:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 459 states have (on average 1.4705882352941178) internal successors, (675), 468 states have internal predecessors, (675), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 837 transitions. [2022-10-15 21:52:46,346 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 837 transitions. Word has length 203 [2022-10-15 21:52:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:46,347 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 837 transitions. [2022-10-15 21:52:46,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:46,347 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 837 transitions. [2022-10-15 21:52:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-15 21:52:46,351 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:46,351 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:46,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:46,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-15 21:52:46,567 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:46,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:46,567 INFO L85 PathProgramCache]: Analyzing trace with hash -533821428, now seen corresponding path program 1 times [2022-10-15 21:52:46,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:46,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599147574] [2022-10-15 21:52:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:46,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-15 21:52:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:46,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:46,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599147574] [2022-10-15 21:52:46,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599147574] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:46,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258401731] [2022-10-15 21:52:46,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:46,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:46,760 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) [2022-10-15 21:52:46,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-15 21:52:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:46,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:52:46,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:46,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:46,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258401731] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:46,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:46,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:46,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963248909] [2022-10-15 21:52:46,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:46,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:46,969 INFO L87 Difference]: Start difference. First operand 559 states and 837 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:47,048 INFO L93 Difference]: Finished difference Result 693 states and 1050 transitions. [2022-10-15 21:52:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:52:47,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 204 [2022-10-15 21:52:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:47,054 INFO L225 Difference]: With dead ends: 693 [2022-10-15 21:52:47,054 INFO L226 Difference]: Without dead ends: 692 [2022-10-15 21:52:47,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:47,056 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 116 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:47,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 1142 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:47,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-10-15 21:52:47,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 561. [2022-10-15 21:52:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 461 states have (on average 1.4685466377440346) internal successors, (677), 470 states have internal predecessors, (677), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 839 transitions. [2022-10-15 21:52:47,134 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 839 transitions. Word has length 204 [2022-10-15 21:52:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:47,135 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 839 transitions. [2022-10-15 21:52:47,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 839 transitions. [2022-10-15 21:52:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-15 21:52:47,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:47,139 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:47,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-10-15 21:52:47,352 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,SelfDestructingSolverStorable24 [2022-10-15 21:52:47,352 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:47,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1856169904, now seen corresponding path program 1 times [2022-10-15 21:52:47,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:47,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058372171] [2022-10-15 21:52:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:47,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-15 21:52:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:47,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058372171] [2022-10-15 21:52:47,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058372171] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123407279] [2022-10-15 21:52:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:47,545 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) [2022-10-15 21:52:47,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-15 21:52:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:47,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:52:47,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:47,794 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:47,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:47,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123407279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:47,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:47,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-15 21:52:47,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238765214] [2022-10-15 21:52:47,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:47,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:52:47,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:47,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:52:47,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:52:47,798 INFO L87 Difference]: Start difference. First operand 561 states and 839 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 21:52:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:47,953 INFO L93 Difference]: Finished difference Result 1014 states and 1541 transitions. [2022-10-15 21:52:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:52:47,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2022-10-15 21:52:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:47,961 INFO L225 Difference]: With dead ends: 1014 [2022-10-15 21:52:47,961 INFO L226 Difference]: Without dead ends: 762 [2022-10-15 21:52:47,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:52:47,965 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 296 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:47,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1658 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-10-15 21:52:48,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 573. [2022-10-15 21:52:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 471 states have (on average 1.4628450106157111) internal successors, (689), 480 states have internal predecessors, (689), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-10-15 21:52:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 855 transitions. [2022-10-15 21:52:48,018 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 855 transitions. Word has length 205 [2022-10-15 21:52:48,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:48,018 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 855 transitions. [2022-10-15 21:52:48,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 21:52:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 855 transitions. [2022-10-15 21:52:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-15 21:52:48,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:48,023 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:48,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:48,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-15 21:52:48,237 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:48,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1033365072, now seen corresponding path program 1 times [2022-10-15 21:52:48,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:48,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247801360] [2022-10-15 21:52:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:48,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-15 21:52:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-15 21:52:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247801360] [2022-10-15 21:52:48,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247801360] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289471706] [2022-10-15 21:52:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:48,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:48,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:48,430 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) [2022-10-15 21:52:48,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-15 21:52:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:48,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:52:48,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:48,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:48,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289471706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:48,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:48,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-15 21:52:48,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953291715] [2022-10-15 21:52:48,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:48,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:52:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:48,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:52:48,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:52:48,670 INFO L87 Difference]: Start difference. First operand 573 states and 855 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 21:52:48,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:48,830 INFO L93 Difference]: Finished difference Result 765 states and 1157 transitions. [2022-10-15 21:52:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:52:48,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2022-10-15 21:52:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:48,837 INFO L225 Difference]: With dead ends: 765 [2022-10-15 21:52:48,837 INFO L226 Difference]: Without dead ends: 764 [2022-10-15 21:52:48,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:52:48,840 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 206 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:48,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 2249 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-10-15 21:52:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 567. [2022-10-15 21:52:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 467 states have (on average 1.462526766595289) internal successors, (683), 476 states have internal predecessors, (683), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 845 transitions. [2022-10-15 21:52:48,890 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 845 transitions. Word has length 205 [2022-10-15 21:52:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:48,891 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 845 transitions. [2022-10-15 21:52:48,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 21:52:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 845 transitions. [2022-10-15 21:52:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-15 21:52:48,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:48,895 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:48,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:49,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:49,109 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1706691768, now seen corresponding path program 1 times [2022-10-15 21:52:49,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:49,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524596767] [2022-10-15 21:52:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:49,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 21:52:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-15 21:52:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:49,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:49,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524596767] [2022-10-15 21:52:49,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524596767] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:49,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449552448] [2022-10-15 21:52:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:49,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:49,305 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) [2022-10-15 21:52:49,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-15 21:52:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:52:49,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:49,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:49,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449552448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:49,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:49,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-15 21:52:49,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112467648] [2022-10-15 21:52:49,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:49,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:52:49,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:52:49,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:52:49,499 INFO L87 Difference]: Start difference. First operand 567 states and 845 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:49,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:49,575 INFO L93 Difference]: Finished difference Result 682 states and 1028 transitions. [2022-10-15 21:52:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:52:49,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 206 [2022-10-15 21:52:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:49,582 INFO L225 Difference]: With dead ends: 682 [2022-10-15 21:52:49,582 INFO L226 Difference]: Without dead ends: 681 [2022-10-15 21:52:49,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:52:49,584 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 124 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:49,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1093 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:52:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-10-15 21:52:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 562. [2022-10-15 21:52:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 463 states have (on average 1.4622030237580994) internal successors, (677), 471 states have internal predecessors, (677), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 839 transitions. [2022-10-15 21:52:49,636 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 839 transitions. Word has length 206 [2022-10-15 21:52:49,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:49,637 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 839 transitions. [2022-10-15 21:52:49,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:52:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 839 transitions. [2022-10-15 21:52:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-15 21:52:49,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:49,642 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:49,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-10-15 21:52:49,855 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,SelfDestructingSolverStorable27 [2022-10-15 21:52:49,855 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1561173356, now seen corresponding path program 1 times [2022-10-15 21:52:49,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:49,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809170386] [2022-10-15 21:52:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-15 21:52:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-15 21:52:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-15 21:52:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-15 21:52:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-15 21:52:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:50,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809170386] [2022-10-15 21:52:50,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809170386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:50,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389993344] [2022-10-15 21:52:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:50,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:50,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:50,095 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) [2022-10-15 21:52:50,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-15 21:52:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:50,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 21:52:50,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-15 21:52:50,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:52:50,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389993344] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:52:50,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:52:50,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-10-15 21:52:50,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140839810] [2022-10-15 21:52:50,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:52:50,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:52:50,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:50,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:52:50,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:52:50,365 INFO L87 Difference]: Start difference. First operand 562 states and 839 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-15 21:52:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:52:50,594 INFO L93 Difference]: Finished difference Result 887 states and 1354 transitions. [2022-10-15 21:52:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:52:50,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 207 [2022-10-15 21:52:50,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:52:50,603 INFO L225 Difference]: With dead ends: 887 [2022-10-15 21:52:50,604 INFO L226 Difference]: Without dead ends: 886 [2022-10-15 21:52:50,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-10-15 21:52:50,606 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 403 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:52:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 2698 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:52:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-10-15 21:52:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 559. [2022-10-15 21:52:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 461 states have (on average 1.4598698481561823) internal successors, (673), 468 states have internal predecessors, (673), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-15 21:52:50,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 835 transitions. [2022-10-15 21:52:50,663 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 835 transitions. Word has length 207 [2022-10-15 21:52:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:52:50,664 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 835 transitions. [2022-10-15 21:52:50,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-15 21:52:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 835 transitions. [2022-10-15 21:52:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-10-15 21:52:50,668 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:52:50,669 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:52:50,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-15 21:52:50,882 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,SelfDestructingSolverStorable28 [2022-10-15 21:52:50,883 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:52:50,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:52:50,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1830637866, now seen corresponding path program 1 times [2022-10-15 21:52:50,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:52:50,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201031049] [2022-10-15 21:52:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:52:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:52:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:52:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:52:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:52:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:52:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:52:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:52:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:52:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:52:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:52:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:52:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:52:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-15 21:52:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-15 21:52:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:52:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-15 21:52:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-15 21:52:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-15 21:52:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-15 21:52:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-15 21:52:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-15 21:52:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-10-15 21:52:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 21:52:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-15 21:52:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-10-15 21:52:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:52:51,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201031049] [2022-10-15 21:52:51,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201031049] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:52:51,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208237752] [2022-10-15 21:52:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:52:51,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:52:51,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:52:51,147 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) [2022-10-15 21:52:51,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-15 21:52:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:52:51,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 21:52:51,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:52:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 32 proven. 149 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-15 21:52:51,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:52:52,058 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-10-15 21:52:52,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208237752] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:52:52,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:52:52,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 12] total 17 [2022-10-15 21:52:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655666166] [2022-10-15 21:52:52,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:52:52,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-15 21:52:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:52:52,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-15 21:52:52,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-10-15 21:52:52,061 INFO L87 Difference]: Start difference. First operand 559 states and 835 transitions. Second operand has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) [2022-10-15 21:53:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:53:02,831 INFO L93 Difference]: Finished difference Result 3619 states and 5649 transitions. [2022-10-15 21:53:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-10-15 21:53:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) Word has length 258 [2022-10-15 21:53:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:53:02,866 INFO L225 Difference]: With dead ends: 3619 [2022-10-15 21:53:02,867 INFO L226 Difference]: Without dead ends: 3064 [2022-10-15 21:53:02,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 564 SyntacticMatches, 9 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5090 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1714, Invalid=12806, Unknown=0, NotChecked=0, Total=14520 [2022-10-15 21:53:02,882 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 3141 mSDsluCounter, 9711 mSDsCounter, 0 mSdLazyCounter, 10354 mSolverCounterSat, 1916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 10726 SdHoareTripleChecker+Invalid, 12270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1916 IncrementalHoareTripleChecker+Valid, 10354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:53:02,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 10726 Invalid, 12270 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1916 Valid, 10354 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-10-15 21:53:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2022-10-15 21:53:03,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 1737. [2022-10-15 21:53:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1397 states have (on average 1.4717251252684325) internal successors, (2056), 1428 states have internal predecessors, (2056), 264 states have call successors, (264), 73 states have call predecessors, (264), 75 states have return successors, (266), 262 states have call predecessors, (266), 264 states have call successors, (266) [2022-10-15 21:53:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2586 transitions. [2022-10-15 21:53:03,208 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2586 transitions. Word has length 258 [2022-10-15 21:53:03,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:53:03,208 INFO L495 AbstractCegarLoop]: Abstraction has 1737 states and 2586 transitions. [2022-10-15 21:53:03,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) [2022-10-15 21:53:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2586 transitions. [2022-10-15 21:53:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-10-15 21:53:03,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:53:03,217 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-15 21:53:03,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-15 21:53:03,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:53:03,433 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:53:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:53:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1152855697, now seen corresponding path program 1 times [2022-10-15 21:53:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:53:03,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147830739] [2022-10-15 21:53:03,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:53:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:53:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:53:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:53:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:53:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:53:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:53:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 21:53:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-15 21:53:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:53:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:53:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 21:53:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 21:53:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-15 21:53:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-15 21:53:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-15 21:53:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-15 21:53:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-15 21:53:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-15 21:53:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-15 21:53:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-15 21:53:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-15 21:53:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-15 21:53:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-15 21:53:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-15 21:53:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 55 proven. 40 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-10-15 21:53:03,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:53:03,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147830739] [2022-10-15 21:53:03,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147830739] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:53:03,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447913177] [2022-10-15 21:53:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:53:03,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:53:03,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:53:03,689 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:53:03,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-15 21:53:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:53:03,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:53:03,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:53:04,033 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-10-15 21:53:04,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:53:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-10-15 21:53:04,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447913177] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:53:04,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:53:04,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-15 21:53:04,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553047633] [2022-10-15 21:53:04,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:53:04,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 21:53:04,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:53:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 21:53:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:53:04,273 INFO L87 Difference]: Start difference. First operand 1737 states and 2586 transitions. Second operand has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-15 21:53:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:53:05,529 INFO L93 Difference]: Finished difference Result 4114 states and 6185 transitions. [2022-10-15 21:53:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 21:53:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) Word has length 272 [2022-10-15 21:53:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:53:05,534 INFO L225 Difference]: With dead ends: 4114 [2022-10-15 21:53:05,534 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 21:53:05,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:53:05,548 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 788 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:53:05,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1772 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 21:53:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 21:53:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 21:53:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:53:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 21:53:05,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2022-10-15 21:53:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:53:05,552 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 21:53:05,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-15 21:53:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 21:53:05,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 21:53:05,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-15 21:53:05,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-15 21:53:05,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-15 21:53:05,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-15 21:53:05,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-15 21:53:05,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-15 21:53:05,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-15 21:53:05,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-15 21:53:05,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-15 21:53:05,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-15 21:53:05,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-15 21:53:05,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:53:05,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.