./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/sina1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/sina1f.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 293b7193d9e00486e9d9bef6956f0c56f2572bdc ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 17:30:32,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 17:30:32,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 17:30:32,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 17:30:32,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 17:30:32,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 17:30:32,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 17:30:32,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 17:30:32,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 17:30:32,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 17:30:32,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 17:30:32,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 17:30:32,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 17:30:32,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 17:30:32,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 17:30:32,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 17:30:32,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 17:30:32,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 17:30:32,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 17:30:32,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 17:30:32,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 17:30:32,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 17:30:32,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 17:30:32,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 17:30:32,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 17:30:32,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 17:30:32,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 17:30:32,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 17:30:32,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 17:30:32,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 17:30:32,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 17:30:32,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 17:30:32,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 17:30:32,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 17:30:32,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 17:30:32,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 17:30:32,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 17:30:32,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 17:30:32,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 17:30:32,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 17:30:32,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 17:30:32,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 17:30:32,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 17:30:32,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 17:30:32,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 17:30:32,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 17:30:32,714 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 17:30:32,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 17:30:32,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 17:30:32,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 17:30:32,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 17:30:32,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 17:30:32,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 17:30:32,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 17:30:32,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 17:30:32,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 17:30:32,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 17:30:32,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:30:32,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 17:30:32,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 17:30:32,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 17:30:32,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 17:30:32,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 17:30:32,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 17:30:32,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 17:30:32,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 293b7193d9e00486e9d9bef6956f0c56f2572bdc [2021-07-04 17:30:32,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 17:30:32,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 17:30:33,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 17:30:33,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 17:30:33,002 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 17:30:33,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina1f.c [2021-07-04 17:30:33,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c20ac5a9/9f9a7165f76742dc9403d97a22bef108/FLAG03777415b [2021-07-04 17:30:33,480 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 17:30:33,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina1f.c [2021-07-04 17:30:33,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c20ac5a9/9f9a7165f76742dc9403d97a22bef108/FLAG03777415b [2021-07-04 17:30:33,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c20ac5a9/9f9a7165f76742dc9403d97a22bef108 [2021-07-04 17:30:33,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 17:30:33,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 17:30:33,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 17:30:33,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 17:30:33,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 17:30:33,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258d2e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33, skipping insertion in model container [2021-07-04 17:30:33,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 17:30:33,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 17:30:33,632 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina1f.c[589,602] [2021-07-04 17:30:33,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:30:33,654 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 17:30:33,663 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina1f.c[589,602] [2021-07-04 17:30:33,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:30:33,695 INFO L208 MainTranslator]: Completed translation [2021-07-04 17:30:33,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33 WrapperNode [2021-07-04 17:30:33,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 17:30:33,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 17:30:33,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 17:30:33,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 17:30:33,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 17:30:33,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 17:30:33,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 17:30:33,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 17:30:33,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 17:30:33,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 17:30:33,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 17:30:33,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 17:30:33,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (1/1) ... [2021-07-04 17:30:33,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:30:33,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 17:30:33,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 17:30:33,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 17:30:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 17:30:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 17:30:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-04 17:30:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-04 17:30:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 17:30:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 17:30:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-04 17:30:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-04 17:30:34,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 17:30:34,105 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-07-04 17:30:34,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:30:34 BoogieIcfgContainer [2021-07-04 17:30:34,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 17:30:34,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 17:30:34,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 17:30:34,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 17:30:34,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 05:30:33" (1/3) ... [2021-07-04 17:30:34,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:30:34, skipping insertion in model container [2021-07-04 17:30:34,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:30:33" (2/3) ... [2021-07-04 17:30:34,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:30:34, skipping insertion in model container [2021-07-04 17:30:34,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:30:34" (3/3) ... [2021-07-04 17:30:34,125 INFO L111 eAbstractionObserver]: Analyzing ICFG sina1f.c [2021-07-04 17:30:34,129 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 17:30:34,129 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 17:30:34,173 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 17:30:34,184 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 17:30:34,186 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 17:30:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 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) [2021-07-04 17:30:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-04 17:30:34,200 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:30:34,200 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:30:34,200 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:30:34,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:30:34,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-07-04 17:30:34,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:30:34,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340849988] [2021-07-04 17:30:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:30:34,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:30:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:30:34,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:30:34,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:30:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:30:34,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:30:34,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340849988] [2021-07-04 17:30:34,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340849988] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:30:34,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:30:34,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 17:30:34,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565481972] [2021-07-04 17:30:34,347 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 17:30:34,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:30:34,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 17:30:34,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:30:34,369 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:30:34,380 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-07-04 17:30:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 17:30:34,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-04 17:30:34,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:30:34,386 INFO L225 Difference]: With dead ends: 38 [2021-07-04 17:30:34,387 INFO L226 Difference]: Without dead ends: 17 [2021-07-04 17:30:34,389 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:30:34,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-07-04 17:30:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-07-04 17:30:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-07-04 17:30:34,410 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-07-04 17:30:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:30:34,410 INFO L442 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-07-04 17:30:34,411 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-07-04 17:30:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-04 17:30:34,411 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:30:34,411 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:30:34,412 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 17:30:34,412 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:30:34,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:30:34,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-07-04 17:30:34,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:30:34,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280420398] [2021-07-04 17:30:34,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:30:34,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:30:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:30:34,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:30:34,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:30:34,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 17:30:34,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:30:34,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:30:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:30:34,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:30:34,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280420398] [2021-07-04 17:30:34,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280420398] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:30:34,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:30:34,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 17:30:34,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633743851] [2021-07-04 17:30:34,516 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 17:30:34,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:30:34,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 17:30:34,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:30:34,517 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:30:34,564 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-07-04 17:30:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 17:30:34,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-04 17:30:34,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:30:34,566 INFO L225 Difference]: With dead ends: 37 [2021-07-04 17:30:34,566 INFO L226 Difference]: Without dead ends: 27 [2021-07-04 17:30:34,572 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:30:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-07-04 17:30:34,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-07-04 17:30:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-07-04 17:30:34,576 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-07-04 17:30:34,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:30:34,576 INFO L442 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-07-04 17:30:34,577 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:30:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-07-04 17:30:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-04 17:30:34,577 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:30:34,577 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:30:34,578 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 17:30:34,578 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:30:34,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:30:34,578 INFO L82 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2021-07-04 17:30:34,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:30:34,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109983416] [2021-07-04 17:30:34,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:30:34,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:30:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:30:34,612 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:30:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:30:34,634 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:30:34,649 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 17:30:34,649 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 17:30:34,651 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-04 17:30:34,651 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 17:30:34,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 05:30:34 BoogieIcfgContainer [2021-07-04 17:30:34,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 17:30:34,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 17:30:34,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 17:30:34,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 17:30:34,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:30:34" (3/4) ... [2021-07-04 17:30:34,676 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 17:30:34,700 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 17:30:34,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 17:30:34,701 INFO L168 Benchmark]: Toolchain (without parser) took 1198.53 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 43.0 MB in the beginning and 47.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,701 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 58.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:30:34,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.87 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 46.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,702 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 44.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:30:34,703 INFO L168 Benchmark]: RCFGBuilder took 336.69 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 29.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,703 INFO L168 Benchmark]: TraceAbstraction took 566.16 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 28.7 MB in the beginning and 49.1 MB in the end (delta: -20.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,703 INFO L168 Benchmark]: Witness Printer took 26.67 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:30:34,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 58.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 192.87 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 46.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 44.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 336.69 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 29.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 566.16 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 28.7 MB in the beginning and 49.1 MB in the end (delta: -20.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 26.67 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i