./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/ifncompf.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 78b7072c9a7547879cdac09dc43cb093e423fbe324be54a54d60d5348866fc30 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-11 23:20:22,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-11 23:20:22,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-11 23:20:22,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-11 23:20:22,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-11 23:20:22,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-11 23:20:22,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-11 23:20:22,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-11 23:20:22,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-11 23:20:22,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-11 23:20:22,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-11 23:20:22,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-11 23:20:22,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-11 23:20:22,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-11 23:20:22,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-11 23:20:22,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-11 23:20:22,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-11 23:20:22,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-11 23:20:22,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-11 23:20:22,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-11 23:20:22,921 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-11 23:20:22,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-11 23:20:22,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-11 23:20:22,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-11 23:20:22,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-11 23:20:22,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-11 23:20:22,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-11 23:20:22,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-11 23:20:22,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-11 23:20:22,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-11 23:20:22,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-11 23:20:22,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-11 23:20:22,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-11 23:20:22,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-11 23:20:22,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-11 23:20:22,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-11 23:20:22,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-11 23:20:22,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-11 23:20:22,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-11 23:20:22,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-11 23:20:22,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-11 23:20:22,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-11 23:20:22,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-11 23:20:22,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-11 23:20:22,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-11 23:20:22,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-11 23:20:22,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-11 23:20:22,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-11 23:20:22,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-11 23:20:22,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * Use SBE=true [2022-07-11 23:20:22,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-11 23:20:22,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-11 23:20:22,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-11 23:20:22,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-11 23:20:22,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-11 23:20:22,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-11 23:20:22,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-11 23:20:22,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-11 23:20:22,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-11 23:20:22,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 23:20:22,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-11 23:20:22,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-11 23:20:22,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-11 23:20:22,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78b7072c9a7547879cdac09dc43cb093e423fbe324be54a54d60d5348866fc30 [2022-07-11 23:20:23,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-11 23:20:23,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-11 23:20:23,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-11 23:20:23,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-11 23:20:23,176 INFO L275 PluginConnector]: CDTParser initialized [2022-07-11 23:20:23,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifncompf.c [2022-07-11 23:20:23,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fea59eb/3a0be7be4b534064b11ebab10d8761fd/FLAG3c070e2ec [2022-07-11 23:20:23,600 INFO L306 CDTParser]: Found 1 translation units. [2022-07-11 23:20:23,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifncompf.c [2022-07-11 23:20:23,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fea59eb/3a0be7be4b534064b11ebab10d8761fd/FLAG3c070e2ec [2022-07-11 23:20:23,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fea59eb/3a0be7be4b534064b11ebab10d8761fd [2022-07-11 23:20:23,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-11 23:20:23,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-11 23:20:23,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-11 23:20:23,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-11 23:20:23,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-11 23:20:23,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24321349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23, skipping insertion in model container [2022-07-11 23:20:23,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-11 23:20:23,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-11 23:20:23,742 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/ifncompf.c[591,604] [2022-07-11 23:20:23,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 23:20:23,761 INFO L203 MainTranslator]: Completed pre-run [2022-07-11 23:20:23,768 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/ifncompf.c[591,604] [2022-07-11 23:20:23,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 23:20:23,782 INFO L208 MainTranslator]: Completed translation [2022-07-11 23:20:23,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23 WrapperNode [2022-07-11 23:20:23,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-11 23:20:23,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-11 23:20:23,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-11 23:20:23,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-11 23:20:23,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,804 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-07-11 23:20:23,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-11 23:20:23,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-11 23:20:23,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-11 23:20:23,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-11 23:20:23,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-11 23:20:23,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-11 23:20:23,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-11 23:20:23,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-11 23:20:23,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (1/1) ... [2022-07-11 23:20:23,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 23:20:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:20:23,850 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) [2022-07-11 23:20:23,871 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 [2022-07-11 23:20:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-11 23:20:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-11 23:20:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-11 23:20:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-11 23:20:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-11 23:20:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-11 23:20:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-11 23:20:23,926 INFO L234 CfgBuilder]: Building ICFG [2022-07-11 23:20:23,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-11 23:20:24,033 INFO L275 CfgBuilder]: Performing block encoding [2022-07-11 23:20:24,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-11 23:20:24,042 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-11 23:20:24,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:20:24 BoogieIcfgContainer [2022-07-11 23:20:24,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-11 23:20:24,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-11 23:20:24,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-11 23:20:24,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-11 23:20:24,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 11:20:23" (1/3) ... [2022-07-11 23:20:24,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6014b176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 11:20:24, skipping insertion in model container [2022-07-11 23:20:24,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:20:23" (2/3) ... [2022-07-11 23:20:24,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6014b176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 11:20:24, skipping insertion in model container [2022-07-11 23:20:24,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:20:24" (3/3) ... [2022-07-11 23:20:24,048 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2022-07-11 23:20:24,058 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-11 23:20:24,058 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-11 23:20:24,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-11 23:20:24,098 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@542f0f7c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67323353 [2022-07-11 23:20:24,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-11 23:20:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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) [2022-07-11 23:20:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-11 23:20:24,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:20:24,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:20:24,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:20:24,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:20:24,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1152450264, now seen corresponding path program 1 times [2022-07-11 23:20:24,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:20:24,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664815575] [2022-07-11 23:20:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:20:24,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:20:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:20:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:20:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:20:24,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664815575] [2022-07-11 23:20:24,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664815575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:20:24,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:20:24,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 23:20:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096107078] [2022-07-11 23:20:24,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:20:24,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-11 23:20:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:20:24,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-11 23:20:24,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-11 23:20:24,278 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-07-11 23:20:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:20:24,288 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2022-07-11 23:20:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-11 23:20:24,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2022-07-11 23:20:24,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:20:24,301 INFO L225 Difference]: With dead ends: 50 [2022-07-11 23:20:24,302 INFO L226 Difference]: Without dead ends: 23 [2022-07-11 23:20:24,304 INFO L412 NwaCegarLoop]: 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 [2022-07-11 23:20:24,307 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2022-07-11 23:20:24,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 23:20:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-11 23:20:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-11 23:20:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 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) [2022-07-11 23:20:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-07-11 23:20:24,333 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 14 [2022-07-11 23:20:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:20:24,334 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-07-11 23:20:24,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-07-11 23:20:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-07-11 23:20:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-11 23:20:24,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:20:24,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:20:24,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-11 23:20:24,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:20:24,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:20:24,336 INFO L85 PathProgramCache]: Analyzing trace with hash 670750212, now seen corresponding path program 1 times [2022-07-11 23:20:24,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:20:24,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933827007] [2022-07-11 23:20:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:20:24,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:20:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:20:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:20:24,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:20:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933827007] [2022-07-11 23:20:24,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933827007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:20:24,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:20:24,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-11 23:20:24,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001751864] [2022-07-11 23:20:24,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:20:24,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-11 23:20:24,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:20:24,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-11 23:20:24,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-11 23:20:24,401 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-11 23:20:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:20:24,451 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2022-07-11 23:20:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-11 23:20:24,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-07-11 23:20:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:20:24,452 INFO L225 Difference]: With dead ends: 56 [2022-07-11 23:20:24,452 INFO L226 Difference]: Without dead ends: 38 [2022-07-11 23:20:24,452 INFO L412 NwaCegarLoop]: 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 [2022-07-11 23:20:24,453 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 23:20:24,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 19 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 23:20:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-07-11 23:20:24,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-07-11 23:20:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 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) [2022-07-11 23:20:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-11 23:20:24,458 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2022-07-11 23:20:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:20:24,458 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-11 23:20:24,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-11 23:20:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-07-11 23:20:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-11 23:20:24,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:20:24,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:20:24,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-11 23:20:24,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:20:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:20:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1978137699, now seen corresponding path program 1 times [2022-07-11 23:20:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:20:24,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072863635] [2022-07-11 23:20:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:20:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:20:24,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 23:20:24,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885146829] [2022-07-11 23:20:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:20:24,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:20:24,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:20:24,489 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) [2022-07-11 23:20:24,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-11 23:20:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-11 23:20:24,544 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-11 23:20:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-11 23:20:24,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-11 23:20:24,572 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-11 23:20:24,573 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-11 23:20:24,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-11 23:20:24,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:20:24,782 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-11 23:20:24,785 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-11 23:20:24,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 11:20:24 BoogieIcfgContainer [2022-07-11 23:20:24,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-11 23:20:24,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-11 23:20:24,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-11 23:20:24,815 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-11 23:20:24,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:20:24" (3/4) ... [2022-07-11 23:20:24,816 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-11 23:20:24,846 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-11 23:20:24,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-11 23:20:24,847 INFO L158 Benchmark]: Toolchain (without parser) took 1231.93ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 84.7MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-11 23:20:24,848 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-11 23:20:24,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.89ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 67.3MB in the end (delta: -14.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-07-11 23:20:24,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.41ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-11 23:20:24,849 INFO L158 Benchmark]: Boogie Preprocessor took 14.34ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-11 23:20:24,849 INFO L158 Benchmark]: RCFGBuilder took 223.06ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 52.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-11 23:20:24,849 INFO L158 Benchmark]: TraceAbstraction took 769.64ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 52.3MB in the beginning and 87.6MB in the end (delta: -35.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-07-11 23:20:24,850 INFO L158 Benchmark]: Witness Printer took 32.39ms. Allocated memory is still 111.1MB. Free memory was 87.6MB in the beginning and 84.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-11 23:20:24,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.89ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 67.3MB in the end (delta: -14.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.41ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.34ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.06ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 52.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 769.64ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 52.3MB in the beginning and 87.6MB in the end (delta: -35.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 32.39ms. Allocated memory is still 111.1MB. Free memory was 87.6MB in the beginning and 84.7MB in the end (delta: 2.9MB). 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); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 VAL [a={-3:0}, b={-2:0}, c={-1:0}, i=0, N=1] [L32] COND TRUE i