/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/verifythis/duplets.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:27:57,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:27:57,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:27:57,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:27:57,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:27:57,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:27:57,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:27:57,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:27:57,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:27:57,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:27:57,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:27:57,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:27:57,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:27:57,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:27:57,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:27:57,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:27:57,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:27:57,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:27:57,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:27:57,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:27:57,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:27:57,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:27:57,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:27:57,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:27:57,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:27:57,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:27:57,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:27:57,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:27:57,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:27:57,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:27:57,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:27:57,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:27:57,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:27:57,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:27:57,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:27:57,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:27:57,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:27:57,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:27:57,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:27:57,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:27:57,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:27:57,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:27:57,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:27:57,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:27:57,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:27:57,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:27:57,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:27:57,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:27:57,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:27:57,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:27:57,286 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:27:57,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:27:57,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:27:57,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:27:57,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:27:57,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:27:57,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:27:57,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:27:57,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:27:57,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:27:57,289 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:27:57,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:27:57,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:27:57,290 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:27:57,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:27:57,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:27:57,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:27:57,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:27:57,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:57,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:27:57,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:27:57,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:27:57,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:27:57,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:27:57,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:27:57,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:27:57,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:27:57,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:27:57,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:27:57,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:27:57,706 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:27:57,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/duplets.c [2022-10-16 17:27:57,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d522b26/4001bb2be4834d38917e6026c20333fb/FLAG783efe4e9 [2022-10-16 17:27:58,457 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:27:58,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/duplets.c [2022-10-16 17:27:58,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d522b26/4001bb2be4834d38917e6026c20333fb/FLAG783efe4e9 [2022-10-16 17:27:58,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d522b26/4001bb2be4834d38917e6026c20333fb [2022-10-16 17:27:58,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:27:58,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:27:58,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:58,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:27:58,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:27:58,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7660ace8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:58, skipping insertion in model container [2022-10-16 17:27:58,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:58" (1/1) ... [2022-10-16 17:27:58,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:27:58,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:27:59,103 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/verifythis/duplets.c[485,498] [2022-10-16 17:27:59,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:59,143 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:27:59,155 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/verifythis/duplets.c[485,498] [2022-10-16 17:27:59,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:59,185 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:27:59,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59 WrapperNode [2022-10-16 17:27:59,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:59,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:59,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:27:59,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:27:59,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,235 INFO L138 Inliner]: procedures = 21, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2022-10-16 17:27:59,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:59,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:27:59,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:27:59,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:27:59,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:27:59,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:27:59,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:27:59,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:27:59,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (1/1) ... [2022-10-16 17:27:59,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:59,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:59,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:27:59,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:27:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:27:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 17:27:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 17:27:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:27:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:27:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:27:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:27:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:27:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:27:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:27:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 17:27:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 17:27:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:27:59,543 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:27:59,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:27:59,890 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:27:59,897 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:27:59,898 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:27:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:59 BoogieIcfgContainer [2022-10-16 17:27:59,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:27:59,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:27:59,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:27:59,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:27:59,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:27:58" (1/3) ... [2022-10-16 17:27:59,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a374510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:59, skipping insertion in model container [2022-10-16 17:27:59,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:59" (2/3) ... [2022-10-16 17:27:59,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a374510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:59, skipping insertion in model container [2022-10-16 17:27:59,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:59" (3/3) ... [2022-10-16 17:27:59,909 INFO L112 eAbstractionObserver]: Analyzing ICFG duplets.c [2022-10-16 17:27:59,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:27:59,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:28:00,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:28:00,076 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;@74aa40c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:28:00,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:28:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 40 states have internal predecessors, (49), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-16 17:28:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:28:00,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:00,111 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:00,112 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1875689356, now seen corresponding path program 1 times [2022-10-16 17:28:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:00,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650597079] [2022-10-16 17:28:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:00,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:00,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650597079] [2022-10-16 17:28:00,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650597079] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:00,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:00,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:28:00,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574016465] [2022-10-16 17:28:00,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:00,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 17:28:00,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 17:28:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:28:00,581 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 40 states have internal predecessors, (49), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 17:28:00,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:00,626 INFO L93 Difference]: Finished difference Result 101 states and 139 transitions. [2022-10-16 17:28:00,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 17:28:00,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2022-10-16 17:28:00,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:00,639 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:28:00,639 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 17:28:00,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 17:28:00,654 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:00,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:00,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 17:28:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-16 17:28:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.35) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:00,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-10-16 17:28:00,705 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 28 [2022-10-16 17:28:00,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:00,706 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-16 17:28:00,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 17:28:00,707 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-10-16 17:28:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:28:00,709 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:00,709 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:00,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:28:00,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:00,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2108466548, now seen corresponding path program 1 times [2022-10-16 17:28:00,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:00,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082659359] [2022-10-16 17:28:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:01,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:01,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082659359] [2022-10-16 17:28:01,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082659359] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:01,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:01,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:28:01,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044256804] [2022-10-16 17:28:01,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:01,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:28:01,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:01,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:28:01,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:28:01,084 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:01,152 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-10-16 17:28:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:28:01,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2022-10-16 17:28:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:01,157 INFO L225 Difference]: With dead ends: 48 [2022-10-16 17:28:01,158 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 17:28:01,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:28:01,162 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:01,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 56 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 17:28:01,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2022-10-16 17:28:01,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:01,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-10-16 17:28:01,184 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 28 [2022-10-16 17:28:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:01,186 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-10-16 17:28:01,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-10-16 17:28:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 17:28:01,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:01,188 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:01,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:28:01,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:01,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:01,189 INFO L85 PathProgramCache]: Analyzing trace with hash 484748148, now seen corresponding path program 1 times [2022-10-16 17:28:01,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:01,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573793031] [2022-10-16 17:28:01,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:01,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573793031] [2022-10-16 17:28:01,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573793031] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:01,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:01,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920574933] [2022-10-16 17:28:01,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:01,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:28:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:28:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:28:01,382 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:01,443 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-10-16 17:28:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:01,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2022-10-16 17:28:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:01,448 INFO L225 Difference]: With dead ends: 46 [2022-10-16 17:28:01,450 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 17:28:01,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:28:01,453 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:01,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 79 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:01,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 17:28:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2022-10-16 17:28:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 36 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-10-16 17:28:01,474 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 32 [2022-10-16 17:28:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:01,475 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-10-16 17:28:01,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,476 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-10-16 17:28:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 17:28:01,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:01,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:28:01,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2142340433, now seen corresponding path program 1 times [2022-10-16 17:28:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:01,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491265473] [2022-10-16 17:28:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:01,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:01,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491265473] [2022-10-16 17:28:01,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491265473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:01,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:01,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:28:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093524298] [2022-10-16 17:28:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:01,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:28:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:01,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:28:01,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:01,684 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:01,767 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-10-16 17:28:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:28:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2022-10-16 17:28:01,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:01,769 INFO L225 Difference]: With dead ends: 59 [2022-10-16 17:28:01,769 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 17:28:01,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:28:01,771 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:01,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 129 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 17:28:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2022-10-16 17:28:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 40 states have internal predecessors, (46), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-10-16 17:28:01,780 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 33 [2022-10-16 17:28:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:01,781 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-10-16 17:28:01,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:01,781 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-10-16 17:28:01,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:28:01,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:01,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:01,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:28:01,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1988044056, now seen corresponding path program 1 times [2022-10-16 17:28:01,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:01,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950664988] [2022-10-16 17:28:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:01,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:01,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950664988] [2022-10-16 17:28:01,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950664988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:01,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:01,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:28:01,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767750864] [2022-10-16 17:28:01,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:01,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:28:01,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:01,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:28:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:01,973 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:02,045 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-10-16 17:28:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:28:02,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2022-10-16 17:28:02,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:02,049 INFO L225 Difference]: With dead ends: 53 [2022-10-16 17:28:02,049 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 17:28:02,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:28:02,052 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:02,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 107 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 17:28:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2022-10-16 17:28:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 40 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-10-16 17:28:02,073 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 34 [2022-10-16 17:28:02,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:02,075 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-10-16 17:28:02,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-16 17:28:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:28:02,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:02,081 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:02,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:28:02,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1452107359, now seen corresponding path program 1 times [2022-10-16 17:28:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:02,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162595453] [2022-10-16 17:28:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:02,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:02,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162595453] [2022-10-16 17:28:02,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162595453] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563426578] [2022-10-16 17:28:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:02,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:02,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:02,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:28:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:28:02,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:02,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:02,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563426578] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:02,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:02,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 17:28:02,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213841071] [2022-10-16 17:28:02,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:28:02,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:02,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:28:02,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:28:02,561 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:02,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:02,652 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2022-10-16 17:28:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:28:02,653 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2022-10-16 17:28:02,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:02,654 INFO L225 Difference]: With dead ends: 65 [2022-10-16 17:28:02,655 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 17:28:02,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:28:02,656 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 84 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:02,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 90 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 17:28:02,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2022-10-16 17:28:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.3125) internal successors, (63), 53 states have internal predecessors, (63), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-10-16 17:28:02,665 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 35 [2022-10-16 17:28:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:02,666 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-10-16 17:28:02,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-10-16 17:28:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 17:28:02,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:02,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:02,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:02,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 17:28:02,883 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2065655223, now seen corresponding path program 1 times [2022-10-16 17:28:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:02,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024822922] [2022-10-16 17:28:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024822922] [2022-10-16 17:28:02,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024822922] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031742533] [2022-10-16 17:28:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:02,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:02,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:02,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:03,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:28:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:28:03,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:03,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:03,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031742533] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:03,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:03,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 17:28:03,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311150318] [2022-10-16 17:28:03,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:03,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:28:03,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:03,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:28:03,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:03,105 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:03,121 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2022-10-16 17:28:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:28:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-10-16 17:28:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:03,122 INFO L225 Difference]: With dead ends: 59 [2022-10-16 17:28:03,123 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 17:28:03,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:28:03,124 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:03,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 44 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 17:28:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 17:28:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 52 states have internal predecessors, (61), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:03,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-10-16 17:28:03,133 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 36 [2022-10-16 17:28:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:03,133 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-10-16 17:28:03,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-10-16 17:28:03,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:28:03,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:03,135 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:03,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:03,349 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,SelfDestructingSolverStorable6 [2022-10-16 17:28:03,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash 701762623, now seen corresponding path program 1 times [2022-10-16 17:28:03,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:03,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537990626] [2022-10-16 17:28:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:03,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:03,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537990626] [2022-10-16 17:28:03,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537990626] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:03,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130166782] [2022-10-16 17:28:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:03,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:03,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:03,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:03,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:28:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:03,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:28:03,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:03,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:03,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130166782] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:03,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:03,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2022-10-16 17:28:03,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956140436] [2022-10-16 17:28:03,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:03,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:28:03,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:03,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:28:03,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:28:03,756 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:03,971 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-10-16 17:28:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 17:28:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2022-10-16 17:28:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:03,975 INFO L225 Difference]: With dead ends: 100 [2022-10-16 17:28:03,975 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 17:28:03,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2022-10-16 17:28:03,977 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 93 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:03,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 243 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 17:28:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 73. [2022-10-16 17:28:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.253968253968254) internal successors, (79), 67 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2022-10-16 17:28:03,988 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 38 [2022-10-16 17:28:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:03,989 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2022-10-16 17:28:03,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2022-10-16 17:28:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:28:03,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:03,990 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:04,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:04,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:04,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1830085982, now seen corresponding path program 1 times [2022-10-16 17:28:04,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:04,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80763498] [2022-10-16 17:28:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:04,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:04,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:04,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80763498] [2022-10-16 17:28:04,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80763498] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:04,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431422114] [2022-10-16 17:28:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:04,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:04,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:04,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:04,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:28:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:28:04,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:04,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:28:04,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431422114] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:04,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:28:04,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2022-10-16 17:28:04,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228531859] [2022-10-16 17:28:04,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:04,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:28:04,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:04,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:28:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:28:04,502 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:04,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:04,574 INFO L93 Difference]: Finished difference Result 127 states and 151 transitions. [2022-10-16 17:28:04,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:28:04,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2022-10-16 17:28:04,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:04,576 INFO L225 Difference]: With dead ends: 127 [2022-10-16 17:28:04,576 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 17:28:04,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:28:04,577 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:04,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 118 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 17:28:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2022-10-16 17:28:04,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 74 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2022-10-16 17:28:04,588 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 40 [2022-10-16 17:28:04,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:04,588 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2022-10-16 17:28:04,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2022-10-16 17:28:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 17:28:04,590 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:04,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 17:28:04,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:04,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:04,803 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash -377006416, now seen corresponding path program 1 times [2022-10-16 17:28:04,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:04,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620989517] [2022-10-16 17:28:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:04,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 17:28:04,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:04,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620989517] [2022-10-16 17:28:04,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620989517] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:04,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596805241] [2022-10-16 17:28:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:04,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:04,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:04,945 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:28:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:05,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:28:05,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:05,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:05,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596805241] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:05,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:05,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 14 [2022-10-16 17:28:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098487521] [2022-10-16 17:28:05,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:28:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:28:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:28:05,237 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:05,832 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2022-10-16 17:28:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 17:28:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2022-10-16 17:28:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:05,834 INFO L225 Difference]: With dead ends: 166 [2022-10-16 17:28:05,835 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 17:28:05,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 86 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 17:28:05,837 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 214 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 217 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:28:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 17:28:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2022-10-16 17:28:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 103 states have internal predecessors, (126), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-10-16 17:28:05,849 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 45 [2022-10-16 17:28:05,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:05,850 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-10-16 17:28:05,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-10-16 17:28:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 17:28:05,851 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:05,851 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 17:28:05,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:06,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 17:28:06,067 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:06,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:06,068 INFO L85 PathProgramCache]: Analyzing trace with hash -377056068, now seen corresponding path program 1 times [2022-10-16 17:28:06,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:06,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12654984] [2022-10-16 17:28:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 17:28:06,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:06,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12654984] [2022-10-16 17:28:06,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12654984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:06,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:06,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:06,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773320566] [2022-10-16 17:28:06,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:06,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:28:06,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:06,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:28:06,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:28:06,146 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:06,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:06,171 INFO L93 Difference]: Finished difference Result 109 states and 134 transitions. [2022-10-16 17:28:06,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:06,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2022-10-16 17:28:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:06,172 INFO L225 Difference]: With dead ends: 109 [2022-10-16 17:28:06,173 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 17:28:06,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:28:06,174 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:06,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 63 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:06,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 17:28:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-10-16 17:28:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 92 states have internal predecessors, (109), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2022-10-16 17:28:06,185 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 45 [2022-10-16 17:28:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:06,185 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2022-10-16 17:28:06,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2022-10-16 17:28:06,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 17:28:06,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:06,187 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 17:28:06,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:28:06,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:06,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:06,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1204016277, now seen corresponding path program 1 times [2022-10-16 17:28:06,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:06,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020857043] [2022-10-16 17:28:06,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 17:28:06,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:06,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020857043] [2022-10-16 17:28:06,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020857043] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:06,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725255118] [2022-10-16 17:28:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:06,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:06,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:06,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:28:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:06,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:28:06,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 17:28:06,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 17:28:06,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725255118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:06,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:06,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-10-16 17:28:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693293065] [2022-10-16 17:28:06,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:06,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:28:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:28:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:28:06,564 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:06,749 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2022-10-16 17:28:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:28:06,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2022-10-16 17:28:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:06,751 INFO L225 Difference]: With dead ends: 99 [2022-10-16 17:28:06,751 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 17:28:06,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:28:06,752 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:06,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 156 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 17:28:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2022-10-16 17:28:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 91 states have internal predecessors, (105), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2022-10-16 17:28:06,762 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 51 [2022-10-16 17:28:06,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:06,763 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2022-10-16 17:28:06,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2022-10-16 17:28:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 17:28:06,764 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:06,764 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:06,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:06,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:06,979 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:06,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1805967057, now seen corresponding path program 2 times [2022-10-16 17:28:06,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:06,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385934994] [2022-10-16 17:28:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:07,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 17:28:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:07,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385934994] [2022-10-16 17:28:07,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385934994] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:07,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918385153] [2022-10-16 17:28:07,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:28:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:07,246 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:07,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:28:07,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:28:07,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:28:07,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:28:07,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 17:28:07,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 17:28:07,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918385153] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:07,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:07,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2022-10-16 17:28:07,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512212644] [2022-10-16 17:28:07,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:07,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:28:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:07,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:28:07,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:28:07,471 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 17:28:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:07,831 INFO L93 Difference]: Finished difference Result 122 states and 141 transitions. [2022-10-16 17:28:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:28:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2022-10-16 17:28:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:07,833 INFO L225 Difference]: With dead ends: 122 [2022-10-16 17:28:07,833 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 17:28:07,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=346, Invalid=844, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 17:28:07,835 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 169 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:07,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 161 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 17:28:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 83. [2022-10-16 17:28:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 76 states have (on average 1.131578947368421) internal successors, (86), 77 states have internal predecessors, (86), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2022-10-16 17:28:07,845 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 53 [2022-10-16 17:28:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:07,845 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2022-10-16 17:28:07,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 17:28:07,846 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2022-10-16 17:28:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 17:28:07,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:07,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 17:28:07,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:08,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:08,063 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1078144200, now seen corresponding path program 1 times [2022-10-16 17:28:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500019287] [2022-10-16 17:28:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 17:28:08,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:08,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500019287] [2022-10-16 17:28:08,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500019287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:28:08,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:28:08,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:28:08,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289135761] [2022-10-16 17:28:08,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:28:08,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:28:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:28:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:28:08,158 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:08,184 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2022-10-16 17:28:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:28:08,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-10-16 17:28:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:08,185 INFO L225 Difference]: With dead ends: 83 [2022-10-16 17:28:08,185 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 17:28:08,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:28:08,187 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 9 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:08,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 61 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:28:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 17:28:08,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 17:28:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 67 states have (on average 1.0746268656716418) internal successors, (72), 67 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-10-16 17:28:08,195 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 61 [2022-10-16 17:28:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:08,196 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-10-16 17:28:08,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:08,196 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-10-16 17:28:08,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 17:28:08,197 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:08,197 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:08,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 17:28:08,197 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:08,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1515376083, now seen corresponding path program 1 times [2022-10-16 17:28:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:08,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856486522] [2022-10-16 17:28:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 56 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 17:28:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856486522] [2022-10-16 17:28:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856486522] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780096938] [2022-10-16 17:28:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:08,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:08,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:08,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:28:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:08,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:28:08,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 59 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 17:28:08,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 59 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 17:28:08,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780096938] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:08,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:08,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 21 [2022-10-16 17:28:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924662697] [2022-10-16 17:28:08,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:08,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 17:28:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:08,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 17:28:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2022-10-16 17:28:08,901 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:09,286 INFO L93 Difference]: Finished difference Result 163 states and 177 transitions. [2022-10-16 17:28:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:28:09,287 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2022-10-16 17:28:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:09,288 INFO L225 Difference]: With dead ends: 163 [2022-10-16 17:28:09,288 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 17:28:09,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 140 SyntacticMatches, 11 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 17:28:09,290 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 116 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:09,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 219 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:28:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 17:28:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2022-10-16 17:28:09,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.0808080808080809) internal successors, (107), 99 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 17:28:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2022-10-16 17:28:09,302 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 74 [2022-10-16 17:28:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:09,303 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2022-10-16 17:28:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 17:28:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2022-10-16 17:28:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 17:28:09,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:28:09,304 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:09,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:09,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:28:09,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:28:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:28:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash 598789887, now seen corresponding path program 2 times [2022-10-16 17:28:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:28:09,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8479192] [2022-10-16 17:28:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:28:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:28:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 17:28:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 17:28:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 17:28:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:28:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:28:09,698 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-10-16 17:28:09,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:28:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8479192] [2022-10-16 17:28:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8479192] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:28:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256631825] [2022-10-16 17:28:09,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:28:09,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:28:09,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:28:09,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:28:09,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:28:09,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:28:09,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:28:09,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:28:09,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:28:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-10-16 17:28:09,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:28:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-10-16 17:28:09,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256631825] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:28:09,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:28:09,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-10-16 17:28:09,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520200933] [2022-10-16 17:28:09,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:28:09,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:28:09,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:28:09,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:28:09,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:28:09,955 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 17:28:10,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:28:10,111 INFO L93 Difference]: Finished difference Result 177 states and 195 transitions. [2022-10-16 17:28:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:28:10,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2022-10-16 17:28:10,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:28:10,112 INFO L225 Difference]: With dead ends: 177 [2022-10-16 17:28:10,112 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:28:10,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 160 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2022-10-16 17:28:10,114 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 148 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:28:10,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 133 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:28:10,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:28:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:28:10,115 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) [2022-10-16 17:28:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:28:10,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2022-10-16 17:28:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:28:10,115 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:28:10,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 17:28:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:28:10,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:28:10,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 17:28:10,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 17:28:10,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 17:28:10,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 17:28:10,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 17:28:10,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 17:28:10,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:28:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 17:28:10,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:28:10,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,844 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2022-10-16 17:28:10,844 INFO L902 garLoopResultBuilder]: At program point L60-2(line 60) the Hoare annotation is: true [2022-10-16 17:28:10,844 INFO L899 garLoopResultBuilder]: For program point L60-3(line 60) no Hoare annotation was computed. [2022-10-16 17:28:10,844 INFO L895 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-10-16 17:28:10,845 INFO L895 garLoopResultBuilder]: At program point L23-1(line 23) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-10-16 17:28:10,845 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 31) no Hoare annotation was computed. [2022-10-16 17:28:10,845 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 44) no Hoare annotation was computed. [2022-10-16 17:28:10,845 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-10-16 17:28:10,845 INFO L902 garLoopResultBuilder]: At program point L65(lines 48 66) the Hoare annotation is: true [2022-10-16 17:28:10,845 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-10-16 17:28:10,846 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:28:10,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,846 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 44) the Hoare annotation is: (let ((.cse2 (<= 0 (+ |ULTIMATE.start_finddup_~i~1#1| 2147483648))) (.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_finddup_~n#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_finddup_~n#1| |ULTIMATE.start_finddup_~j~1#1|))) (or (and .cse0 (= |ULTIMATE.start_finddup_~i~1#1| 0) .cse1) (and (<= |ULTIMATE.start_finddup_~i~1#1| 1) .cse2 .cse3 (<= |ULTIMATE.start_finddup_~j~1#1| (+ |ULTIMATE.start_finddup_~i~1#1| 1))) (and .cse2 (<= |ULTIMATE.start_finddup_~n#1| |ULTIMATE.start_finddup_~i~1#1|)) (and .cse0 .cse1 .cse3 (<= 1 |ULTIMATE.start_finddup_~i~1#1|)))) [2022-10-16 17:28:10,846 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-10-16 17:28:10,846 INFO L899 garLoopResultBuilder]: For program point L36-6(lines 36 44) no Hoare annotation was computed. [2022-10-16 17:28:10,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:28:10,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-10-16 17:28:10,847 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-10-16 17:28:10,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:28:10,847 INFO L902 garLoopResultBuilder]: At program point L61-2(line 61) the Hoare annotation is: true [2022-10-16 17:28:10,847 INFO L899 garLoopResultBuilder]: For program point L61-3(line 61) no Hoare annotation was computed. [2022-10-16 17:28:10,848 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-10-16 17:28:10,848 INFO L902 garLoopResultBuilder]: At program point L45(lines 33 46) the Hoare annotation is: true [2022-10-16 17:28:10,848 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,848 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,848 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 43) no Hoare annotation was computed. [2022-10-16 17:28:10,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:28:10,849 INFO L899 garLoopResultBuilder]: For program point L37-5(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,849 INFO L899 garLoopResultBuilder]: For program point L37-6(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,849 INFO L895 garLoopResultBuilder]: At program point L37-7(lines 37 43) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_finddup_~i~1#1| 1)) (.cse1 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_finddup_~n#1| 2147483647))) (or (and (<= |ULTIMATE.start_finddup_~i~1#1| 1) (<= 0 (+ |ULTIMATE.start_finddup_~i~1#1| 2147483648)) (<= |ULTIMATE.start_finddup_~n#1| |ULTIMATE.start_finddup_~j~1#1|) (<= |ULTIMATE.start_finddup_~j~1#1| .cse0)) (and .cse1 (<= .cse0 |ULTIMATE.start_finddup_~j~1#1|) (= |ULTIMATE.start_finddup_~i~1#1| 0) .cse2) (and .cse1 (<= 2 |ULTIMATE.start_finddup_~j~1#1|) (<= |ULTIMATE.start_finddup_~i~1#1| 2147483646) .cse2 (<= 1 |ULTIMATE.start_finddup_~i~1#1|)))) [2022-10-16 17:28:10,849 INFO L902 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: true [2022-10-16 17:28:10,849 INFO L899 garLoopResultBuilder]: For program point L62-1(line 62) no Hoare annotation was computed. [2022-10-16 17:28:10,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-10-16 17:28:10,850 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-10-16 17:28:10,850 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2022-10-16 17:28:10,850 INFO L902 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: true [2022-10-16 17:28:10,850 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 17:28:10,850 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2022-10-16 17:28:10,850 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2022-10-16 17:28:10,851 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-10-16 17:28:10,851 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-10-16 17:28:10,851 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-10-16 17:28:10,851 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-10-16 17:28:10,851 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 17) no Hoare annotation was computed. [2022-10-16 17:28:10,851 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 15 17) the Hoare annotation is: true [2022-10-16 17:28:10,851 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 15 17) no Hoare annotation was computed. [2022-10-16 17:28:10,851 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 11) the Hoare annotation is: true [2022-10-16 17:28:10,852 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-10-16 17:28:10,852 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 11) no Hoare annotation was computed. [2022-10-16 17:28:10,852 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 11) no Hoare annotation was computed. [2022-10-16 17:28:10,856 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:28:10,859 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:28:10,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:28:10 BoogieIcfgContainer [2022-10-16 17:28:10,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:28:10,880 INFO L158 Benchmark]: Toolchain (without parser) took 12052.75ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 125.7MB in the beginning and 76.5MB in the end (delta: 49.1MB). Peak memory consumption was 80.5MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,880 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:28:10,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 115.1MB in the end (delta: 10.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 151.0MB. Free memory was 115.1MB in the beginning and 113.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,881 INFO L158 Benchmark]: Boogie Preprocessor took 39.72ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 111.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,882 INFO L158 Benchmark]: RCFGBuilder took 623.35ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 95.8MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,883 INFO L158 Benchmark]: TraceAbstraction took 10976.79ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 95.2MB in the beginning and 76.5MB in the end (delta: 18.7MB). Peak memory consumption was 50.0MB. Max. memory is 8.0GB. [2022-10-16 17:28:10,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 115.1MB in the end (delta: 10.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 151.0MB. Free memory was 115.1MB in the beginning and 113.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.72ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 111.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 623.35ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 95.8MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 10976.79ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 95.2MB in the beginning and 76.5MB in the end (delta: 18.7MB). Peak memory consumption was 50.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 52 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 995 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 995 mSDsluCounter, 1939 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1510 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1253 IncrementalHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 429 mSDtfsCounter, 1253 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1133 GetRequests, 899 SyntacticMatches, 23 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1425 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=10, InterpolantAutomatonStates: 170, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 154 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 30 PreInvPairs, 86 NumberOfFragments, 120 HoareAnnotationTreeSize, 30 FomulaSimplifications, 590 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 15 FomulaSimplificationsInter, 1658 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1163 NumberOfCodeBlocks, 1058 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1506 ConstructedInterpolants, 0 QuantifiedInterpolants, 3172 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1681 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 32 InterpolantComputations, 9 PerfectInterpolantSequences, 1408/1716 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((i <= 1 && 0 <= i + 2147483648) && n <= j) && j <= i + 1) || (((n <= 2147483647 && i + 1 <= j) && i == 0) && n <= 2147483647)) || ((((n <= 2147483647 && 2 <= j) && i <= 2147483646) && n <= 2147483647) && 1 <= i) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((n <= 2147483647 && i == 0) && n <= 2147483647) || (((i <= 1 && 0 <= i + 2147483648) && n <= j) && j <= i + 1)) || (0 <= i + 2147483648 && n <= i)) || (((n <= 2147483647 && n <= 2147483647) && n <= j) && 1 <= i) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 17:28:10,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...