/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-fpi/ss3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 20:07:42,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 20:07:42,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 20:07:42,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 20:07:42,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 20:07:42,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 20:07:42,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 20:07:42,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 20:07:42,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 20:07:42,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 20:07:42,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 20:07:42,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 20:07:42,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 20:07:42,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 20:07:42,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 20:07:42,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 20:07:42,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 20:07:42,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 20:07:42,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 20:07:42,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 20:07:42,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 20:07:42,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 20:07:42,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 20:07:42,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 20:07:42,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 20:07:42,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 20:07:42,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 20:07:42,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 20:07:42,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 20:07:42,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 20:07:42,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 20:07:42,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 20:07:42,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 20:07:42,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 20:07:42,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 20:07:42,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 20:07:42,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 20:07:42,230 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 20:07:42,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 20:07:42,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 20:07:42,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 20:07:42,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 20:07:42,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 20:07:42,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 20:07:42,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 20:07:42,232 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 20:07:42,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 20:07:42,232 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 20:07:42,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 20:07:42,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 20:07:42,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:07:42,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 20:07:42,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 20:07:42,235 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 20:07:42,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 20:07:42,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 20:07:42,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 20:07:42,431 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 20:07:42,432 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 20:07:42,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss3f.c [2023-04-01 20:07:43,497 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 20:07:43,627 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 20:07:43,628 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c [2023-04-01 20:07:43,633 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18ba5b436/05b112b2ae7a41b2b881919182fc6b8f/FLAG4818a4663 [2023-04-01 20:07:43,645 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18ba5b436/05b112b2ae7a41b2b881919182fc6b8f [2023-04-01 20:07:43,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 20:07:43,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 20:07:43,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 20:07:43,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 20:07:43,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 20:07:43,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccb31de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43, skipping insertion in model container [2023-04-01 20:07:43,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 20:07:43,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 20:07:43,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2023-04-01 20:07:43,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:07:43,849 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 20:07:43,862 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2023-04-01 20:07:43,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:07:43,890 INFO L208 MainTranslator]: Completed translation [2023-04-01 20:07:43,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43 WrapperNode [2023-04-01 20:07:43,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 20:07:43,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 20:07:43,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 20:07:43,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 20:07:43,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 20:07:43,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 20:07:43,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 20:07:43,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 20:07:43,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (1/1) ... [2023-04-01 20:07:43,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:07:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:07:43,990 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) [2023-04-01 20:07:44,003 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 [2023-04-01 20:07:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 20:07:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 20:07:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 20:07:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 20:07:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 20:07:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 20:07:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 20:07:44,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 20:07:44,097 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 20:07:44,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 20:07:44,285 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 20:07:44,289 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 20:07:44,289 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 20:07:44,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:07:44 BoogieIcfgContainer [2023-04-01 20:07:44,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 20:07:44,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 20:07:44,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 20:07:44,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 20:07:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:07:43" (1/3) ... [2023-04-01 20:07:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b4ac12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:07:44, skipping insertion in model container [2023-04-01 20:07:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:07:43" (2/3) ... [2023-04-01 20:07:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b4ac12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:07:44, skipping insertion in model container [2023-04-01 20:07:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:07:44" (3/3) ... [2023-04-01 20:07:44,298 INFO L112 eAbstractionObserver]: Analyzing ICFG ss3f.c [2023-04-01 20:07:44,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 20:07:44,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 20:07:44,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 20:07:44,344 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=PETRI_NET, 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;@aa44c85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 20:07:44,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 20:07:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 20:07:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-01 20:07:44,352 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:07:44,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:07:44,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:07:44,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:07:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1142530869, now seen corresponding path program 1 times [2023-04-01 20:07:44,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:07:44,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330524733] [2023-04-01 20:07:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:44,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:07:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:07:44,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:07:44,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330524733] [2023-04-01 20:07:44,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-04-01 20:07:44,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762159382] [2023-04-01 20:07:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:44,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:07:44,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:07:44,515 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) [2023-04-01 20:07:44,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 20:07:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:07:44,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-04-01 20:07:44,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:07:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:07:44,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:07:44,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762159382] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:07:44,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:07:44,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 20:07:44,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866011488] [2023-04-01 20:07:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:07:44,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 20:07:44,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:07:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 20:07:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 20:07:44,692 INFO L87 Difference]: Start difference. First operand has 40 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 20:07:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:07:44,715 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2023-04-01 20:07:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 20:07:44,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-04-01 20:07:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:07:44,722 INFO L225 Difference]: With dead ends: 70 [2023-04-01 20:07:44,723 INFO L226 Difference]: Without dead ends: 33 [2023-04-01 20:07:44,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 20:07:44,727 INFO L413 NwaCegarLoop]: 45 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, 45 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 [2023-04-01 20:07:44,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 20:07:44,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-04-01 20:07:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-04-01 20:07:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:07:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-04-01 20:07:44,754 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 27 [2023-04-01 20:07:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:07:44,754 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-04-01 20:07:44,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 20:07:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-04-01 20:07:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-01 20:07:44,755 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:07:44,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:07:44,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 20:07:44,961 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,SelfDestructingSolverStorable0 [2023-04-01 20:07:44,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:07:44,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:07:44,962 INFO L85 PathProgramCache]: Analyzing trace with hash 986516815, now seen corresponding path program 1 times [2023-04-01 20:07:44,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:07:44,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071517419] [2023-04-01 20:07:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:07:44,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 20:07:44,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937056097] [2023-04-01 20:07:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:44,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:07:44,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:07:45,008 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) [2023-04-01 20:07:45,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 20:07:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:07:45,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 20:07:45,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:07:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:07:45,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:07:45,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:07:45,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071517419] [2023-04-01 20:07:45,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 20:07:45,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937056097] [2023-04-01 20:07:45,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937056097] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:07:45,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:07:45,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 20:07:45,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179265813] [2023-04-01 20:07:45,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:07:45,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 20:07:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:07:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 20:07:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-01 20:07:45,158 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:07:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:07:45,215 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2023-04-01 20:07:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 20:07:45,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-04-01 20:07:45,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:07:45,216 INFO L225 Difference]: With dead ends: 61 [2023-04-01 20:07:45,216 INFO L226 Difference]: Without dead ends: 43 [2023-04-01 20:07:45,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-01 20:07:45,217 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 39 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 20:07:45,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 32 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 20:07:45,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-04-01 20:07:45,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2023-04-01 20:07:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:07:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-04-01 20:07:45,228 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2023-04-01 20:07:45,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:07:45,229 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-04-01 20:07:45,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:07:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-04-01 20:07:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-04-01 20:07:45,230 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:07:45,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:07:45,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 20:07:45,436 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,SelfDestructingSolverStorable1 [2023-04-01 20:07:45,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:07:45,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:07:45,437 INFO L85 PathProgramCache]: Analyzing trace with hash -382625319, now seen corresponding path program 1 times [2023-04-01 20:07:45,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:07:45,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042354132] [2023-04-01 20:07:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:07:45,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 20:07:45,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171908944] [2023-04-01 20:07:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:07:45,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:07:45,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:07:45,483 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) [2023-04-01 20:07:45,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 20:07:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 20:07:45,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 20:07:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 20:07:45,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-01 20:07:45,627 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 20:07:45,628 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 20:07:45,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 20:07:45,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:07:45,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-01 20:07:45,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 20:07:45,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 08:07:45 BoogieIcfgContainer [2023-04-01 20:07:45,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 20:07:45,855 INFO L158 Benchmark]: Toolchain (without parser) took 2206.07ms. Allocated memory is still 342.9MB. Free memory was 292.6MB in the beginning and 265.9MB in the end (delta: 26.7MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. [2023-04-01 20:07:45,856 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 20:07:45,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.54ms. Allocated memory is still 342.9MB. Free memory was 292.6MB in the beginning and 281.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 20:07:45,856 INFO L158 Benchmark]: Boogie Preprocessor took 31.22ms. Allocated memory is still 342.9MB. Free memory was 281.8MB in the beginning and 280.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 20:07:45,858 INFO L158 Benchmark]: RCFGBuilder took 368.12ms. Allocated memory is still 342.9MB. Free memory was 280.0MB in the beginning and 266.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 20:07:45,858 INFO L158 Benchmark]: TraceAbstraction took 1561.15ms. Allocated memory is still 342.9MB. Free memory was 265.7MB in the beginning and 265.9MB in the end (delta: -187.3kB). Peak memory consumption was 711.7kB. Max. memory is 8.0GB. [2023-04-01 20:07:45,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 238.54ms. Allocated memory is still 342.9MB. Free memory was 292.6MB in the beginning and 281.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.22ms. Allocated memory is still 342.9MB. Free memory was 281.8MB in the beginning and 280.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 368.12ms. Allocated memory is still 342.9MB. Free memory was 280.0MB in the beginning and 266.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1561.15ms. Allocated memory is still 342.9MB. Free memory was 265.7MB in the beginning and 265.9MB in the end (delta: -187.3kB). Peak memory consumption was 711.7kB. 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0, \old(N)=11] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [N=1, \old(N)=0] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0, \old(cond)=1] [L13] COND FALSE !(!cond) VAL [N=1, \old(N)=0, \old(cond)=1, cond=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1, \old(N)=0, a={4:0}, i=0, sum={6:0}] [L32] COND TRUE i