/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/indp4f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:32:30,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:32:30,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:32:30,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:32:30,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:32:30,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:32:30,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:32:30,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:32:30,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:32:30,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:32:30,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:32:30,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:32:30,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:32:30,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:32:30,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:32:30,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:32:30,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:32:30,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:32:30,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:32:30,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:32:30,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:32:30,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:32:30,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:32:30,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:32:30,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-30 22:32:30,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-30 22:32:30,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-30 22:32:30,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-30 22:32:30,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-30 22:32:30,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-30 22:32:30,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:32:30,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:32:30,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:32:30,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:32:30,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:32:30,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:32:30,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:32:30,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:32:30,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:32:30,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:32:30,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:32:30,588 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 22:32:30,604 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:32:30,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:32:30,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:32:30,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:32:30,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:32:30,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:32:30,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:32:30,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:32:30,607 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:32:30,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:32:30,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:32:30,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:30,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:32:30,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:32:30,610 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:32:30,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:32:30,610 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:32:30,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:32:30,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:32:30,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:32:30,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:32:30,833 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:32:30,833 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:32:30,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp4f.c [2023-03-30 22:32:31,758 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:32:31,988 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:32:31,988 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp4f.c [2023-03-30 22:32:31,992 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d811a5d/6662d20dee944d95a89b666c6a4e2df9/FLAG6da499434 [2023-03-30 22:32:32,008 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d811a5d/6662d20dee944d95a89b666c6a4e2df9 [2023-03-30 22:32:32,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:32:32,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:32:32,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:32,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:32:32,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:32:32,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c266c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32, skipping insertion in model container [2023-03-30 22:32:32,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:32:32,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:32:32,148 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/indp4f.c[589,602] [2023-03-30 22:32:32,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:32,171 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:32:32,179 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/indp4f.c[589,602] [2023-03-30 22:32:32,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:32,192 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:32:32,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32 WrapperNode [2023-03-30 22:32:32,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:32,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:32:32,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:32:32,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:32:32,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:32:32,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:32:32,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:32:32,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:32:32,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (1/1) ... [2023-03-30 22:32:32,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:32,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:32,263 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 22:32:32,268 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 22:32:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:32:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:32:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:32:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:32:32,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:32:32,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:32:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:32:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:32:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:32:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:32:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:32:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:32:32,368 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:32:32,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:32:32,528 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:32:32,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:32:32,532 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-30 22:32:32,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:32 BoogieIcfgContainer [2023-03-30 22:32:32,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:32:32,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:32:32,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:32:32,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:32:32,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:32:32" (1/3) ... [2023-03-30 22:32:32,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc21ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:32, skipping insertion in model container [2023-03-30 22:32:32,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:32" (2/3) ... [2023-03-30 22:32:32,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc21ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:32, skipping insertion in model container [2023-03-30 22:32:32,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:32" (3/3) ... [2023-03-30 22:32:32,555 INFO L112 eAbstractionObserver]: Analyzing ICFG indp4f.c [2023-03-30 22:32:32,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:32:32,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:32:32,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:32:32,620 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;@5f3c3ac3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:32:32,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:32:32,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 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 22:32:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-03-30 22:32:32,631 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:32,632 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] [2023-03-30 22:32:32,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:32,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash 730907677, now seen corresponding path program 1 times [2023-03-30 22:32:32,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:32,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332368754] [2023-03-30 22:32:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:32,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:32,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:32,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332368754] [2023-03-30 22:32:32,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-03-30 22:32:32,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213726971] [2023-03-30 22:32:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:32,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:32,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:32,751 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 22:32:32,752 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 22:32:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:32,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-30 22:32:32,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:32:32,849 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 22:32:32,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:32:32,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213726971] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:32,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:32,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-30 22:32:32,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806900590] [2023-03-30 22:32:32,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:32,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-30 22:32:32,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-30 22:32:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:32:32,875 INFO L87 Difference]: Start difference. First operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 22:32:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:32,889 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2023-03-30 22:32:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-30 22:32:32,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 24 [2023-03-30 22:32:32,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:32,895 INFO L225 Difference]: With dead ends: 64 [2023-03-30 22:32:32,895 INFO L226 Difference]: Without dead ends: 32 [2023-03-30 22:32:32,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 22:32:32,899 INFO L413 NwaCegarLoop]: 41 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, 41 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 22:32:32,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:32:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-03-30 22:32:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-03-30 22:32:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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 22:32:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-03-30 22:32:32,922 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2023-03-30 22:32:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:32,922 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-03-30 22:32:32,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 22:32:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-03-30 22:32:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-03-30 22:32:32,923 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:32,923 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] [2023-03-30 22:32:32,933 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 22:32:33,129 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 22:32:33,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:33,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash -548956001, now seen corresponding path program 1 times [2023-03-30 22:32:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786224859] [2023-03-30 22:32:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:33,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:32:33,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524524790] [2023-03-30 22:32:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:33,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:33,187 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 22:32:33,191 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 22:32:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:33,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-30 22:32:33,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:32:33,341 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 22:32:33,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:32:33,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786224859] [2023-03-30 22:32:33,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:32:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524524790] [2023-03-30 22:32:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524524790] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:33,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:33,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-30 22:32:33,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334291898] [2023-03-30 22:32:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:33,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-30 22:32:33,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:33,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-30 22:32:33,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:32:33,352 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 22:32:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:33,422 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2023-03-30 22:32:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-30 22:32:33,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 24 [2023-03-30 22:32:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:33,426 INFO L225 Difference]: With dead ends: 59 [2023-03-30 22:32:33,426 INFO L226 Difference]: Without dead ends: 42 [2023-03-30 22:32:33,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 22:32:33,427 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 37 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:32:33,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 35 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:32:33,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-03-30 22:32:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2023-03-30 22:32:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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 22:32:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-03-30 22:32:33,444 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2023-03-30 22:32:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:33,445 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-03-30 22:32:33,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 22:32:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-03-30 22:32:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-03-30 22:32:33,447 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:33,447 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] [2023-03-30 22:32:33,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-30 22:32:33,651 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 22:32:33,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:33,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1885615975, now seen corresponding path program 1 times [2023-03-30 22:32:33,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:33,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383781487] [2023-03-30 22:32:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:33,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:33,681 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:32:33,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690781824] [2023-03-30 22:32:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:33,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:32:33,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:33,692 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 22:32:33,694 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 22:32:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:33,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-30 22:32:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:33,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-30 22:32:33,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-30 22:32:33,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-30 22:32:33,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-03-30 22:32:33,993 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 22:32:33,995 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-03-30 22:32:33,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-30 22:32:34,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.03 10:32:34 BoogieIcfgContainer [2023-03-30 22:32:34,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-30 22:32:34,016 INFO L158 Benchmark]: Toolchain (without parser) took 2005.22ms. Allocated memory was 166.7MB in the beginning and 256.9MB in the end (delta: 90.2MB). Free memory was 131.1MB in the beginning and 207.7MB in the end (delta: -76.6MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2023-03-30 22:32:34,016 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 166.7MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:34,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.45ms. Allocated memory is still 166.7MB. Free memory was 130.4MB in the beginning and 119.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-30 22:32:34,016 INFO L158 Benchmark]: Boogie Preprocessor took 22.62ms. Allocated memory is still 166.7MB. Free memory was 119.9MB in the beginning and 118.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-30 22:32:34,017 INFO L158 Benchmark]: RCFGBuilder took 324.92ms. Allocated memory is still 166.7MB. Free memory was 118.1MB in the beginning and 106.3MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-30 22:32:34,017 INFO L158 Benchmark]: TraceAbstraction took 1464.49ms. Allocated memory was 166.7MB in the beginning and 256.9MB in the end (delta: 90.2MB). Free memory was 105.6MB in the beginning and 207.7MB in the end (delta: -102.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:34,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 166.7MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.45ms. Allocated memory is still 166.7MB. Free memory was 130.4MB in the beginning and 119.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.62ms. Allocated memory is still 166.7MB. Free memory was 119.9MB in the beginning and 118.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 324.92ms. Allocated memory is still 166.7MB. Free memory was 118.1MB in the beginning and 106.3MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1464.49ms. Allocated memory was 166.7MB in the beginning and 256.9MB in the end (delta: 90.2MB). Free memory was 105.6MB in the beginning and 207.7MB in the end (delta: -102.1MB). 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)=10] [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 *a = malloc(sizeof(long long)*N); [L30] i=0 VAL [N=1, \old(N)=0, a={4:0}, i=0] [L30] COND TRUE i