./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifeqn5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/ifeqn5f.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d9c2b19f3a128133e19f35c8975782eb43c272b0098e2b2d8b7a4c4d9315a632 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 21:50:41,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 21:50:41,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 21:50:41,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 21:50:41,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 21:50:41,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 21:50:41,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 21:50:41,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 21:50:41,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 21:50:41,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 21:50:41,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 21:50:41,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 21:50:41,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 21:50:41,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 21:50:41,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 21:50:41,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 21:50:41,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 21:50:41,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 21:50:41,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 21:50:42,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 21:50:42,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 21:50:42,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 21:50:42,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 21:50:42,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 21:50:42,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 21:50:42,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 21:50:42,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 21:50:42,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 21:50:42,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 21:50:42,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 21:50:42,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 21:50:42,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 21:50:42,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 21:50:42,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 21:50:42,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 21:50:42,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 21:50:42,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 21:50:42,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 21:50:42,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 21:50:42,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 21:50:42,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 21:50:42,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 21:50:42,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 21:50:42,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 21:50:42,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 21:50:42,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 21:50:42,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 21:50:42,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 21:50:42,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 21:50:42,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 21:50:42,058 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 21:50:42,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 21:50:42,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 21:50:42,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 21:50:42,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 21:50:42,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 21:50:42,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 21:50:42,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 21:50:42,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 21:50:42,061 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 21:50:42,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 21:50:42,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 21:50:42,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 21:50:42,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 21:50:42,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 21:50:42,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 21:50:42,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:50:42,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 21:50:42,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 21:50:42,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 21:50:42,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 21:50:42,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 21:50:42,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 21:50:42,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 21:50:42,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 21:50:42,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 21:50:42,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9c2b19f3a128133e19f35c8975782eb43c272b0098e2b2d8b7a4c4d9315a632 [2021-12-15 21:50:42,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 21:50:42,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 21:50:42,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 21:50:42,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 21:50:42,340 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 21:50:42,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn5f.c [2021-12-15 21:50:42,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62edcb20/231ed4077aff4e10ada98c3d1c7e4a43/FLAGb45377856 [2021-12-15 21:50:42,834 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 21:50:42,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c [2021-12-15 21:50:42,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62edcb20/231ed4077aff4e10ada98c3d1c7e4a43/FLAGb45377856 [2021-12-15 21:50:42,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62edcb20/231ed4077aff4e10ada98c3d1c7e4a43 [2021-12-15 21:50:42,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 21:50:42,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 21:50:42,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 21:50:42,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 21:50:42,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 21:50:42,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:50:42" (1/1) ... [2021-12-15 21:50:42,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2edc4be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:42, skipping insertion in model container [2021-12-15 21:50:42,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:50:42" (1/1) ... [2021-12-15 21:50:42,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 21:50:42,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 21:50:43,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c[590,603] [2021-12-15 21:50:43,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:50:43,061 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 21:50:43,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c[590,603] [2021-12-15 21:50:43,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:50:43,102 INFO L208 MainTranslator]: Completed translation [2021-12-15 21:50:43,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43 WrapperNode [2021-12-15 21:50:43,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 21:50:43,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 21:50:43,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 21:50:43,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 21:50:43,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,139 INFO L137 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2021-12-15 21:50:43,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 21:50:43,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 21:50:43,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 21:50:43,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 21:50:43,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 21:50:43,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 21:50:43,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 21:50:43,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 21:50:43,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (1/1) ... [2021-12-15 21:50:43,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:50:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:50:43,201 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) [2021-12-15 21:50:43,202 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 [2021-12-15 21:50:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 21:50:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 21:50:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 21:50:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 21:50:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 21:50:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 21:50:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 21:50:43,276 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 21:50:43,277 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 21:50:43,453 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 21:50:43,461 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 21:50:43,461 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 21:50:43,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:50:43 BoogieIcfgContainer [2021-12-15 21:50:43,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 21:50:43,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 21:50:43,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 21:50:43,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 21:50:43,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:50:42" (1/3) ... [2021-12-15 21:50:43,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6554f477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:50:43, skipping insertion in model container [2021-12-15 21:50:43,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:50:43" (2/3) ... [2021-12-15 21:50:43,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6554f477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:50:43, skipping insertion in model container [2021-12-15 21:50:43,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:50:43" (3/3) ... [2021-12-15 21:50:43,484 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn5f.c [2021-12-15 21:50:43,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 21:50:43,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 21:50:43,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 21:50:43,576 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 21:50:43,576 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 21:50:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 21:50:43,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:50:43,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:50:43,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:50:43,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:50:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2021-12-15 21:50:43,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:50:43,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245562807] [2021-12-15 21:50:43,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:50:43,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:50:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:50:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:50:43,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:50:43,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245562807] [2021-12-15 21:50:43,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245562807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:50:43,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:50:43,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 21:50:43,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852724614] [2021-12-15 21:50:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:50:43,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 21:50:43,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:50:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 21:50:43,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 21:50:43,806 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:43,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:50:43,821 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-12-15 21:50:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 21:50:43,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-15 21:50:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:50:43,831 INFO L225 Difference]: With dead ends: 42 [2021-12-15 21:50:43,831 INFO L226 Difference]: Without dead ends: 19 [2021-12-15 21:50:43,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 21:50:43,839 INFO L933 BasicCegarLoop]: 28 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, 28 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 [2021-12-15 21:50:43,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:50:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-15 21:50:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-15 21:50:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-15 21:50:43,869 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-12-15 21:50:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:50:43,870 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-15 21:50:43,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-12-15 21:50:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 21:50:43,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:50:43,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:50:43,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 21:50:43,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:50:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:50:43,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2021-12-15 21:50:43,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:50:43,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359798116] [2021-12-15 21:50:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:50:43,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:50:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:50:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:50:43,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:50:43,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359798116] [2021-12-15 21:50:43,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359798116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:50:43,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:50:43,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 21:50:43,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723927962] [2021-12-15 21:50:43,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:50:43,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 21:50:43,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:50:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 21:50:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:50:43,981 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:50:44,046 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-12-15 21:50:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 21:50:44,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-15 21:50:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:50:44,048 INFO L225 Difference]: With dead ends: 45 [2021-12-15 21:50:44,048 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 21:50:44,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:50:44,053 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 37 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:50:44,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 17 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:50:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 21:50:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-12-15 21:50:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-15 21:50:44,062 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-12-15 21:50:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:50:44,063 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-15 21:50:44,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 21:50:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-15 21:50:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 21:50:44,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:50:44,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:50:44,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 21:50:44,068 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:50:44,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:50:44,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2021-12-15 21:50:44,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:50:44,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105147969] [2021-12-15 21:50:44,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:50:44,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:50:44,118 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:50:44,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489745505] [2021-12-15 21:50:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:50:44,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:50:44,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:50:44,127 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) [2021-12-15 21:50:44,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 21:50:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 21:50:44,186 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 21:50:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 21:50:44,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 21:50:44,220 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 21:50:44,221 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 21:50:44,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 21:50:44,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:50:44,447 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-15 21:50:44,448 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 21:50:44,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:50:44 BoogieIcfgContainer [2021-12-15 21:50:44,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 21:50:44,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 21:50:44,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 21:50:44,473 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 21:50:44,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:50:43" (3/4) ... [2021-12-15 21:50:44,474 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-15 21:50:44,509 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 21:50:44,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 21:50:44,509 INFO L158 Benchmark]: Toolchain (without parser) took 1647.07ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 71.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2021-12-15 21:50:44,510 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 21:50:44,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.84ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 80.0MB in the end (delta: -6.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-15 21:50:44,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.12ms. Allocated memory is still 102.8MB. Free memory was 80.0MB in the beginning and 78.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 21:50:44,511 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 76.8MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 21:50:44,511 INFO L158 Benchmark]: RCFGBuilder took 290.78ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 66.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 21:50:44,511 INFO L158 Benchmark]: TraceAbstraction took 1007.49ms. Allocated memory is still 102.8MB. Free memory was 65.8MB in the beginning and 73.9MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 21:50:44,511 INFO L158 Benchmark]: Witness Printer took 36.68ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 21:50:44,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.84ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 80.0MB in the end (delta: -6.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.12ms. Allocated memory is still 102.8MB. Free memory was 80.0MB in the beginning and 78.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 76.8MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 290.78ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 66.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1007.49ms. Allocated memory is still 102.8MB. Free memory was 65.8MB in the beginning and 73.9MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.68ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [a={-2:0}, b={-1:0}, i=0, N=1] [L31] COND TRUE i