./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/indp2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/indp2f.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 bd03f99fe6e3c31eb6c62348fdf004884fa2edfb8b8dad39def6bba1704cfbd6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:49:49,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:49:49,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:49:49,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:49:49,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:49:49,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:49:49,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:49:49,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:49:49,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:49:49,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:49:49,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:49:49,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:49:49,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:49:49,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:49:49,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:49:49,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:49:49,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:49:49,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:49:49,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:49:49,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:49:49,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:49:49,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:49:49,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:49:49,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:49:49,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:49:49,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:49:49,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:49:49,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:49:49,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:49:49,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:49:49,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:49:49,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:49:49,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:49:49,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:49:49,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:49:49,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:49:49,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:49:49,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:49:49,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:49:49,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:49:49,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:49:49,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:49:49,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:49:49,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:49:49,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:49:49,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:49:49,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:49:49,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:49:49,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:49:49,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:49:49,815 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:49:49,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:49:49,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:49:49,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:49:49,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:49:49,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:49:49,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:49:49,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:49:49,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:49:49,818 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:49:49,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:49:49,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:49:49,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:49:49,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:49:49,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:49:49,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:49:49,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:49:49,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:49:49,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:49:49,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:49:49,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:49:49,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:49:49,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:49:49,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:49:49,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:49:49,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:49:49,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd03f99fe6e3c31eb6c62348fdf004884fa2edfb8b8dad39def6bba1704cfbd6 [2021-12-15 08:49:50,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:49:50,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:49:50,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:49:50,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:49:50,074 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:49:50,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp2f.c [2021-12-15 08:49:50,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37f0417cf/862c4ac41e204734ae729f3348179f97/FLAGfec8a751a [2021-12-15 08:49:50,491 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:49:50,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp2f.c [2021-12-15 08:49:50,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37f0417cf/862c4ac41e204734ae729f3348179f97/FLAGfec8a751a [2021-12-15 08:49:50,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37f0417cf/862c4ac41e204734ae729f3348179f97 [2021-12-15 08:49:50,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:49:50,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:49:50,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:49:50,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:49:50,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:49:50,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9a3a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50, skipping insertion in model container [2021-12-15 08:49:50,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:49:50,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:49:50,678 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/indp2f.c[589,602] [2021-12-15 08:49:50,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:49:50,711 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:49:50,726 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/indp2f.c[589,602] [2021-12-15 08:49:50,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:49:50,755 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:49:50,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50 WrapperNode [2021-12-15 08:49:50,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:49:50,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:49:50,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:49:50,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:49:50,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,790 INFO L137 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2021-12-15 08:49:50,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:49:50,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:49:50,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:49:50,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:49:50,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:49:50,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:49:50,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:49:50,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:49:50,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (1/1) ... [2021-12-15 08:49:50,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:49:50,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:49:50,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 08:49:50,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:49:50,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:49:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 08:49:50,958 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:49:50,959 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:49:51,110 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:49:51,115 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:49:51,126 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 08:49:51,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:49:51 BoogieIcfgContainer [2021-12-15 08:49:51,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:49:51,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:49:51,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:49:51,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:49:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:49:50" (1/3) ... [2021-12-15 08:49:51,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8414df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:49:51, skipping insertion in model container [2021-12-15 08:49:51,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:49:50" (2/3) ... [2021-12-15 08:49:51,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8414df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:49:51, skipping insertion in model container [2021-12-15 08:49:51,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:49:51" (3/3) ... [2021-12-15 08:49:51,136 INFO L111 eAbstractionObserver]: Analyzing ICFG indp2f.c [2021-12-15 08:49:51,140 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:49:51,140 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:49:51,183 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:49:51,189 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 08:49:51,190 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:49:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:49:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 08:49:51,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:49:51,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:49:51,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:49:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:49:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2021-12-15 08:49:51,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:49:51,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141195745] [2021-12-15 08:49:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:49:51,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:49:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:49:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:49:51,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:49:51,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141195745] [2021-12-15 08:49:51,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141195745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:49:51,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:49:51,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 08:49:51,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570746210] [2021-12-15 08:49:51,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:49:51,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 08:49:51,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:49:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 08:49:51,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 08:49:51,407 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2021-12-15 08:49:51,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:49:51,422 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-12-15 08:49:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 08:49:51,424 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 [2021-12-15 08:49:51,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:49:51,431 INFO L225 Difference]: With dead ends: 44 [2021-12-15 08:49:51,431 INFO L226 Difference]: Without dead ends: 20 [2021-12-15 08:49:51,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 08:49:51,437 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:49:51,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:49:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-15 08:49:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-15 08:49:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:49:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-12-15 08:49:51,467 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2021-12-15 08:49:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:49:51,468 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-15 08:49:51,468 INFO L471 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) [2021-12-15 08:49:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-12-15 08:49:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 08:49:51,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:49:51,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:49:51,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:49:51,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:49:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:49:51,474 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2021-12-15 08:49:51,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:49:51,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568036148] [2021-12-15 08:49:51,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:49:51,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:49:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:49:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:49:51,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:49:51,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568036148] [2021-12-15 08:49:51,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568036148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:49:51,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:49:51,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 08:49:51,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854280584] [2021-12-15 08:49:51,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:49:51,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 08:49:51,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:49:51,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 08:49:51,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 08:49:51,589 INFO L87 Difference]: Start difference. First operand 20 states and 23 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) [2021-12-15 08:49:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:49:51,692 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-12-15 08:49:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 08:49:51,693 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 [2021-12-15 08:49:51,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:49:51,694 INFO L225 Difference]: With dead ends: 45 [2021-12-15 08:49:51,694 INFO L226 Difference]: Without dead ends: 32 [2021-12-15 08:49:51,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 08:49:51,696 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:49:51,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 16 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:49:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-15 08:49:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-12-15 08:49:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:49:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-12-15 08:49:51,702 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-12-15 08:49:51,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:49:51,703 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-12-15 08:49:51,703 INFO L471 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) [2021-12-15 08:49:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-12-15 08:49:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-15 08:49:51,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:49:51,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:49:51,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 08:49:51,704 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:49:51,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:49:51,705 INFO L85 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2021-12-15 08:49:51,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:49:51,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313723857] [2021-12-15 08:49:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:49:51,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:49:51,718 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 08:49:51,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8704257] [2021-12-15 08:49:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:49:51,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:49:51,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:49:51,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:49:51,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 08:49:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 08:49:51,778 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 08:49:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 08:49:51,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 08:49:51,811 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 08:49:51,812 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 08:49:51,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:49:52,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:49:52,040 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-15 08:49:52,043 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 08:49:52,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:49:52 BoogieIcfgContainer [2021-12-15 08:49:52,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 08:49:52,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 08:49:52,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 08:49:52,074 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 08:49:52,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:49:51" (3/4) ... [2021-12-15 08:49:52,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-15 08:49:52,116 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 08:49:52,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 08:49:52,119 INFO L158 Benchmark]: Toolchain (without parser) took 1610.55ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 56.3MB in the beginning and 72.1MB in the end (delta: -15.7MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-15 08:49:52,120 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:49:52,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.75ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 56.1MB in the beginning and 83.5MB in the end (delta: -27.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:49:52,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.11ms. Allocated memory is still 107.0MB. Free memory was 83.5MB in the beginning and 81.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:49:52,122 INFO L158 Benchmark]: Boogie Preprocessor took 43.88ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 08:49:52,122 INFO L158 Benchmark]: RCFGBuilder took 292.07ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 70.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:49:52,122 INFO L158 Benchmark]: TraceAbstraction took 943.00ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 74.2MB in the end (delta: -4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:49:52,123 INFO L158 Benchmark]: Witness Printer took 45.47ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:49:52,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.75ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 56.1MB in the beginning and 83.5MB in the end (delta: -27.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.11ms. Allocated memory is still 107.0MB. Free memory was 83.5MB in the beginning and 81.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.88ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 292.07ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 70.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 943.00ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 74.2MB in the end (delta: -4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.47ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.1MB in the end (delta: 2.1MB). 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); [L30] i=0 VAL [a={-1:0}, i=0, N=1] [L30] COND TRUE i