/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/modpf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:32:44,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:32:44,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:32:44,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:32:44,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:32:44,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:32:44,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:32:44,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:32:44,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:32:44,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:32:44,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:32:44,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:32:44,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:32:44,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:32:44,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:32:44,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:32:44,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:32:44,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:32:44,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:32:44,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:32:44,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:32:44,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:32:44,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:32:44,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:32:44,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:32:44,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:32:44,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:32:44,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:32:44,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:32:44,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:32:44,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:32:44,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:32:44,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:32:44,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:32:44,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:32:44,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:32:44,336 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 [2023-03-30 22:32:44,370 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:32:44,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:32:44,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:32:44,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:32:44,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:32:44,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:32:44,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:32:44,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:32:44,372 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:32:44,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:32:44,373 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:32:44,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:32:44,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:32:44,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:32:44,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:44,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:32:44,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:32:44,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:32:44,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:32:44,376 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:32:44,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:32:44,376 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:32:44,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:32:44,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:32:44,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:32:44,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:32:44,647 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:32:44,648 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:32:44,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modpf.c [2023-03-30 22:32:45,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:32:45,905 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:32:45,905 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modpf.c [2023-03-30 22:32:45,909 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596aca11d/b42fcc14ac5e4947b0960040bfb34e38/FLAGc291d19bc [2023-03-30 22:32:45,919 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596aca11d/b42fcc14ac5e4947b0960040bfb34e38 [2023-03-30 22:32:45,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:32:45,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:32:45,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:45,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:32:45,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:32:45,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:45" (1/1) ... [2023-03-30 22:32:45,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2bf3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:45, skipping insertion in model container [2023-03-30 22:32:45,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:45" (1/1) ... [2023-03-30 22:32:45,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:32:45,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:32:46,109 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/modpf.c[588,601] [2023-03-30 22:32:46,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:46,143 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:32:46,157 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/modpf.c[588,601] [2023-03-30 22:32:46,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:46,174 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:32:46,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46 WrapperNode [2023-03-30 22:32:46,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:46,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:32:46,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:32:46,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:32:46,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:32:46,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:32:46,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:32:46,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:32:46,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (1/1) ... [2023-03-30 22:32:46,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:46,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:46,242 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) [2023-03-30 22:32:46,252 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 [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:32:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:32:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-30 22:32:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:32:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:32:46,346 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:32:46,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:32:46,474 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:32:46,479 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:32:46,480 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-03-30 22:32:46,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:46 BoogieIcfgContainer [2023-03-30 22:32:46,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:32:46,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:32:46,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:32:46,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:32:46,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:32:45" (1/3) ... [2023-03-30 22:32:46,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4098305f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:46, skipping insertion in model container [2023-03-30 22:32:46,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:46" (2/3) ... [2023-03-30 22:32:46,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4098305f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:46, skipping insertion in model container [2023-03-30 22:32:46,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:46" (3/3) ... [2023-03-30 22:32:46,488 INFO L112 eAbstractionObserver]: Analyzing ICFG modpf.c [2023-03-30 22:32:46,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:32:46,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:32:46,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:32:46,620 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;@4d5c367f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:32:46,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:32:46,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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) [2023-03-30 22:32:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-03-30 22:32:46,634 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:46,635 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] [2023-03-30 22:32:46,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:46,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:46,641 INFO L85 PathProgramCache]: Analyzing trace with hash 199879945, now seen corresponding path program 1 times [2023-03-30 22:32:46,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:46,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56720651] [2023-03-30 22:32:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:46,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:46,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56720651] [2023-03-30 22:32:46,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-03-30 22:32:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319574352] [2023-03-30 22:32:46,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:46,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:46,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:46,845 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) [2023-03-30 22:32:46,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:32:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:46,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-30 22:32:46,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:32:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:32:46,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:32:46,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319574352] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:46,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:46,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-30 22:32:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789525421] [2023-03-30 22:32:47,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:47,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-30 22:32:47,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-30 22:32:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:32:47,035 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-03-30 22:32:47,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:47,052 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2023-03-30 22:32:47,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-30 22:32:47,053 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 22 [2023-03-30 22:32:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:47,059 INFO L225 Difference]: With dead ends: 58 [2023-03-30 22:32:47,059 INFO L226 Difference]: Without dead ends: 29 [2023-03-30 22:32:47,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:32:47,069 INFO L413 NwaCegarLoop]: 37 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, 37 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 [2023-03-30 22:32:47,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:32:47,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-03-30 22:32:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-03-30 22:32:47,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-30 22:32:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-03-30 22:32:47,109 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2023-03-30 22:32:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:47,110 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-03-30 22:32:47,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2023-03-30 22:32:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-03-30 22:32:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-03-30 22:32:47,112 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:47,113 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] [2023-03-30 22:32:47,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-30 22:32:47,320 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 [2023-03-30 22:32:47,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:47,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:47,321 INFO L85 PathProgramCache]: Analyzing trace with hash -386926069, now seen corresponding path program 1 times [2023-03-30 22:32:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:47,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66889195] [2023-03-30 22:32:47,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:47,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:47,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:32:47,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173406371] [2023-03-30 22:32:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:47,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:47,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:47,389 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) [2023-03-30 22:32:47,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-30 22:32:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:47,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-30 22:32:47,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:32:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:32:47,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:32:47,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66889195] [2023-03-30 22:32:47,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:32:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173406371] [2023-03-30 22:32:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173406371] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:47,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-30 22:32:47,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823555055] [2023-03-30 22:32:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:47,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-30 22:32:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-30 22:32:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:32:47,540 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-03-30 22:32:47,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:47,584 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2023-03-30 22:32:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-30 22:32:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 22 [2023-03-30 22:32:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:47,587 INFO L225 Difference]: With dead ends: 51 [2023-03-30 22:32:47,587 INFO L226 Difference]: Without dead ends: 37 [2023-03-30 22:32:47,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:32:47,589 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:32:47,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:32:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-03-30 22:32:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2023-03-30 22:32:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-30 22:32:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-03-30 22:32:47,597 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 22 [2023-03-30 22:32:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:47,597 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-03-30 22:32:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-03-30 22:32:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-03-30 22:32:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-03-30 22:32:47,598 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:47,598 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] [2023-03-30 22:32:47,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-30 22:32:47,811 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 [2023-03-30 22:32:47,812 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:47,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash -292108345, now seen corresponding path program 1 times [2023-03-30 22:32:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:47,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989170909] [2023-03-30 22:32:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:47,858 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:32:47,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970392461] [2023-03-30 22:32:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:47,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:47,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:47,862 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) [2023-03-30 22:32:47,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-30 22:32:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:47,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-30 22:32:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:47,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-30 22:32:47,979 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-30 22:32:47,980 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-30 22:32:47,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-30 22:32:48,187 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 [2023-03-30 22:32:48,190 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-03-30 22:32:48,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-30 22:32:48,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.03 10:32:48 BoogieIcfgContainer [2023-03-30 22:32:48,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-30 22:32:48,215 INFO L158 Benchmark]: Toolchain (without parser) took 2291.93ms. Allocated memory is still 373.3MB. Free memory was 329.3MB in the beginning and 321.2MB in the end (delta: 8.0MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2023-03-30 22:32:48,215 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 225.4MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:48,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.75ms. Allocated memory is still 373.3MB. Free memory was 328.8MB in the beginning and 318.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-30 22:32:48,216 INFO L158 Benchmark]: Boogie Preprocessor took 30.11ms. Allocated memory is still 373.3MB. Free memory was 318.3MB in the beginning and 316.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-30 22:32:48,216 INFO L158 Benchmark]: RCFGBuilder took 275.42ms. Allocated memory is still 373.3MB. Free memory was 316.7MB in the beginning and 304.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-30 22:32:48,217 INFO L158 Benchmark]: TraceAbstraction took 1731.42ms. Allocated memory is still 373.3MB. Free memory was 303.2MB in the beginning and 321.2MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:48,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 225.4MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.75ms. Allocated memory is still 373.3MB. Free memory was 328.8MB in the beginning and 318.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.11ms. Allocated memory is still 373.3MB. Free memory was 318.3MB in the beginning and 316.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 275.42ms. Allocated memory is still 373.3MB. Free memory was 316.7MB in the beginning and 304.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1731.42ms. Allocated memory is still 373.3MB. Free memory was 303.2MB in the beginning and 321.2MB in the end (delta: -18.0MB). There was no memory consumed. 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] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1, \old(N)=0, a={-1:0}, i=0, sum={4:0}] [L32] COND TRUE i