./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifeqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/ifeqn1f.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 2625b986cac66fb3a009b48427217d3081ac93ac 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Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 16:46:29,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 16:46:29,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 16:46:30,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 16:46:30,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 16:46:30,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 16:46:30,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 16:46:30,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 16:46:30,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 16:46:30,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 16:46:30,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 16:46:30,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 16:46:30,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 16:46:30,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 16:46:30,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 16:46:30,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 16:46:30,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 16:46:30,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 16:46:30,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 16:46:30,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 16:46:30,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 16:46:30,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 16:46:30,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 16:46:30,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 16:46:30,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 16:46:30,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 16:46:30,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 16:46:30,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 16:46:30,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 16:46:30,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 16:46:30,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 16:46:30,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 16:46:30,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 16:46:30,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 16:46:30,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 16:46:30,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 16:46:30,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 16:46:30,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 16:46:30,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 16:46:30,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 16:46:30,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 16:46:30,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 16:46:30,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 16:46:30,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 16:46:30,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 16:46:30,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 16:46:30,128 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 16:46:30,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 16:46:30,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 16:46:30,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 16:46:30,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 16:46:30,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 16:46:30,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 16:46:30,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 16:46:30,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 16:46:30,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 16:46:30,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 16:46:30,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 16:46:30,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 16:46:30,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 16:46:30,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 16:46:30,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 16:46:30,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 16:46:30,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 16:46:30,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 16:46:30,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 16:46:30,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 16:46:30,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 16:46:30,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 16:46:30,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 16:46:30,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2625b986cac66fb3a009b48427217d3081ac93ac [2021-07-04 16:46:30,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 16:46:30,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 16:46:30,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 16:46:30,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 16:46:30,407 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 16:46:30,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn1f.c [2021-07-04 16:46:30,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ac080a1/2372051d6c4e474d95427904541d3aa5/FLAG71e7c7cf4 [2021-07-04 16:46:30,817 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 16:46:30,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn1f.c [2021-07-04 16:46:30,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ac080a1/2372051d6c4e474d95427904541d3aa5/FLAG71e7c7cf4 [2021-07-04 16:46:30,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ac080a1/2372051d6c4e474d95427904541d3aa5 [2021-07-04 16:46:30,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 16:46:30,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 16:46:30,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 16:46:30,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 16:46:30,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 16:46:30,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:30,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2454fa51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30, skipping insertion in model container [2021-07-04 16:46:30,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:30,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 16:46:30,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 16:46:30,927 WARN L224 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/ifeqn1f.c[590,603] [2021-07-04 16:46:30,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 16:46:30,945 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 16:46:30,954 WARN L224 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/ifeqn1f.c[590,603] [2021-07-04 16:46:30,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 16:46:30,982 INFO L208 MainTranslator]: Completed translation [2021-07-04 16:46:30,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30 WrapperNode [2021-07-04 16:46:30,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 16:46:30,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 16:46:30,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 16:46:30,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 16:46:30,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 16:46:31,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 16:46:31,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 16:46:31,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 16:46:31,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 16:46:31,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 16:46:31,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 16:46:31,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 16:46:31,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (1/1) ... [2021-07-04 16:46:31,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 16:46:31,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 16:46:31,099 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) [2021-07-04 16:46:31,145 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 [2021-07-04 16:46:31,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 16:46:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 16:46:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-04 16:46:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-04 16:46:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 16:46:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 16:46:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-04 16:46:31,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 16:46:31,390 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-07-04 16:46:31,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:46:31 BoogieIcfgContainer [2021-07-04 16:46:31,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 16:46:31,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 16:46:31,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 16:46:31,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 16:46:31,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 04:46:30" (1/3) ... [2021-07-04 16:46:31,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a0ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 04:46:31, skipping insertion in model container [2021-07-04 16:46:31,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:46:30" (2/3) ... [2021-07-04 16:46:31,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a0ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 04:46:31, skipping insertion in model container [2021-07-04 16:46:31,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:46:31" (3/3) ... [2021-07-04 16:46:31,396 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn1f.c [2021-07-04 16:46:31,409 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 16:46:31,409 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 16:46:31,474 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 16:46:31,478 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 16:46:31,479 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 16:46:31,488 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) [2021-07-04 16:46:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-04 16:46:31,492 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:46:31,492 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:46:31,492 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:46:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:46:31,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2021-07-04 16:46:31,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:46:31,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043203160] [2021-07-04 16:46:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:46:31,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:46:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 16:46:31,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:46:31,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:46:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 16:46:31,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 16:46:31,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043203160] [2021-07-04 16:46:31,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043203160] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 16:46:31,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 16:46:31,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 16:46:31,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371371322] [2021-07-04 16:46:31,604 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 16:46:31,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 16:46:31,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 16:46:31,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 16:46:31,621 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) [2021-07-04 16:46:31,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 16:46:31,639 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-07-04 16:46:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 16:46:31,640 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 [2021-07-04 16:46:31,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 16:46:31,645 INFO L225 Difference]: With dead ends: 42 [2021-07-04 16:46:31,646 INFO L226 Difference]: Without dead ends: 19 [2021-07-04 16:46:31,648 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 16:46:31,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-07-04 16:46:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-07-04 16:46:31,668 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) [2021-07-04 16:46:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-07-04 16:46:31,670 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-07-04 16:46:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 16:46:31,670 INFO L442 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-07-04 16:46:31,671 INFO L443 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) [2021-07-04 16:46:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-07-04 16:46:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-04 16:46:31,671 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:46:31,672 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:46:31,672 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 16:46:31,672 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:46:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:46:31,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2021-07-04 16:46:31,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:46:31,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774923120] [2021-07-04 16:46:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:46:31,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:46:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 16:46:31,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:46:31,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 16:46:31,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 16:46:31,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:46:31,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:46:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 16:46:31,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 16:46:31,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774923120] [2021-07-04 16:46:31,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774923120] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 16:46:31,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 16:46:31,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 16:46:31,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715091747] [2021-07-04 16:46:31,793 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 16:46:31,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 16:46:31,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 16:46:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 16:46:31,795 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) [2021-07-04 16:46:31,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 16:46:31,864 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-07-04 16:46:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 16:46:31,865 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 [2021-07-04 16:46:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 16:46:31,865 INFO L225 Difference]: With dead ends: 45 [2021-07-04 16:46:31,866 INFO L226 Difference]: Without dead ends: 31 [2021-07-04 16:46:31,867 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 16:46:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-07-04 16:46:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-07-04 16:46:31,883 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) [2021-07-04 16:46:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-07-04 16:46:31,884 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-07-04 16:46:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 16:46:31,884 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-07-04 16:46:31,885 INFO L443 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) [2021-07-04 16:46:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-07-04 16:46:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-04 16:46:31,885 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:46:31,885 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:46:31,885 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 16:46:31,886 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:46:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:46:31,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2021-07-04 16:46:31,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:46:31,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726625260] [2021-07-04 16:46:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:46:31,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:46:31,900 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-04 16:46:31,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917850182] [2021-07-04 16:46:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:46:31,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 16:46:31,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 16:46:31,913 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) [2021-07-04 16:46:31,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-04 16:46:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 16:46:31,977 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 16:46:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 16:46:31,994 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 16:46:32,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 16:46:32,030 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 16:46:32,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-04 16:46:32,251 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 16:46:32,252 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 16:46:32,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 04:46:32 BoogieIcfgContainer [2021-07-04 16:46:32,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 16:46:32,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 16:46:32,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 16:46:32,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 16:46:32,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:46:31" (3/4) ... [2021-07-04 16:46:32,285 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 16:46:32,315 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 16:46:32,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 16:46:32,316 INFO L168 Benchmark]: Toolchain (without parser) took 1483.40 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 29.8 MB in the beginning and 40.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,316 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 33.9 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 16:46:32,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.60 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 31.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.11 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 31.2 MB in the beginning and 51.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,318 INFO L168 Benchmark]: Boogie Preprocessor took 52.25 ms. Allocated memory is still 67.1 MB. Free memory was 51.1 MB in the beginning and 49.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,318 INFO L168 Benchmark]: RCFGBuilder took 310.75 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 34.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,319 INFO L168 Benchmark]: TraceAbstraction took 890.36 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 42.7 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 16:46:32,319 INFO L168 Benchmark]: Witness Printer took 32.06 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 16:46:32,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 33.9 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 154.60 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 31.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.11 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 31.2 MB in the beginning and 51.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.25 ms. Allocated memory is still 67.1 MB. Free memory was 51.1 MB in the beginning and 49.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 310.75 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 34.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 890.36 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 42.7 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 32.06 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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) [L13] COND FALSE !(!cond) VAL [N=1] [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 [N=1] [L31] COND TRUE i