./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f ......................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 04:37:15,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:15,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:15,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:15,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:15,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:15,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:15,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:15,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:15,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:15,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:15,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:15,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:15,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:15,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:15,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:15,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:15,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:15,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:15,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:15,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:15,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:15,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:15,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:15,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:15,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:15,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:15,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:15,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:15,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:15,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:15,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:15,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:15,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:15,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:15,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:15,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:15,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:15,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:15,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:15,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:15,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:15,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:15,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:15,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:15,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:15,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:15,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:15,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:15,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:15,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:15,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:15,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:15,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:15,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:15,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:15,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:15,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:15,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:15,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:15,441 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:15,441 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:15,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:15,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:15,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:15,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:15,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:15,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:15,443 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:15,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:15,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:15,444 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:/tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf11ae0ce80f2ff20585fcb052cccfcf6fefbf1f [2020-11-28 04:37:15,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:15,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:15,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:15,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:15,775 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:15,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/../../sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-11-28 04:37:15,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/data/90848b460/d06f6821a4ea4bdeb4225375f7a937a2/FLAGac0809d22 [2020-11-28 04:37:16,415 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:16,416 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/sv-benchmarks/c/loops/while_infinite_loop_4.c [2020-11-28 04:37:16,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/data/90848b460/d06f6821a4ea4bdeb4225375f7a937a2/FLAGac0809d22 [2020-11-28 04:37:16,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/data/90848b460/d06f6821a4ea4bdeb4225375f7a937a2 [2020-11-28 04:37:16,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:16,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:16,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:16,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:16,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:16,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:16" (1/1) ... [2020-11-28 04:37:16,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570874b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:16, skipping insertion in model container [2020-11-28 04:37:16,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:16" (1/1) ... [2020-11-28 04:37:16,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:16,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:17,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:17,042 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:17,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:17,074 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:17,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17 WrapperNode [2020-11-28 04:37:17,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:17,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:17,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:17,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:17,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:17,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:17,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:17,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:17,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:17,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:17,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:17,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:17,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:17,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:37:17,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:37:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:17,704 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:17,705 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:37:17,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:17 BoogieIcfgContainer [2020-11-28 04:37:17,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:17,708 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:17,708 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:17,719 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:17,720 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:17" (1/1) ... [2020-11-28 04:37:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:17,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:37:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:37:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:37:17,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:17,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:17,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:18,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:37:18,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:37:18,079 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-28 04:37:18,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:18 ImpRootNode [2020-11-28 04:37:18,107 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:18,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:18,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:18,108 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:18,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:17" (3/4) ... [2020-11-28 04:37:18,110 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:37:18,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ee7952ce-2729-44cd-b2f5-96f0f3e8294b/bin/ukojak/witness.graphml [2020-11-28 04:37:18,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:18,148 INFO L168 Benchmark]: Toolchain (without parser) took 1371.98 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 74.0 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:18,149 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:18,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.92 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 54.5 MB in the beginning and 77.5 MB in the end (delta: -22.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:18,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.65 ms. Allocated memory is still 100.7 MB. Free memory was 77.5 MB in the beginning and 76.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:18,151 INFO L168 Benchmark]: Boogie Preprocessor took 33.78 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 75.3 MB in the end (delta: 860.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:18,152 INFO L168 Benchmark]: RCFGBuilder took 555.41 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 62.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:18,152 INFO L168 Benchmark]: CodeCheck took 399.03 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 75.6 MB in the end (delta: -13.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:18,153 INFO L168 Benchmark]: Witness Printer took 38.78 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:18,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int x=0; [L26] COND TRUE 1 [L16] COND TRUE 1 [L17] x=1 VAL [x=1] [L29] CALL __VERIFIER_assert(x==0) VAL [x=1] [L6] COND TRUE !(cond) VAL [x=1] [L3] __assert_fail("0", "while_infinite_loop_4.c", 3, "reach_error") VAL [x=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.92 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 54.5 MB in the beginning and 77.5 MB in the end (delta: -22.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.65 ms. Allocated memory is still 100.7 MB. Free memory was 77.5 MB in the beginning and 76.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.78 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 75.3 MB in the end (delta: 860.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 555.41 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 62.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 399.03 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 75.6 MB in the end (delta: -13.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 38.78 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...