./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label02.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_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/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 89c62496deb7fbbb2a9c0a2f85e181ab5f3ba0dc ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:26:10,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:26:10,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:26:10,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:26:10,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:26:10,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:26:10,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:26:10,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:26:10,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:26:10,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:26:10,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:26:10,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:26:10,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:26:10,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:26:10,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:26:10,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:26:10,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:26:10,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:26:10,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:26:10,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:26:10,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:26:10,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:26:10,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:26:10,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:26:10,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:26:10,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:26:10,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:26:10,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:26:10,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:26:10,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:26:10,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:26:10,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:26:10,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:26:10,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:26:10,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:26:10,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:26:10,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:26:10,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:26:10,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:26:10,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:26:10,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:26:10,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 21:26:10,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:26:10,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:26:10,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 21:26:10,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 21:26:10,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:26:10,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:26:10,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:26:10,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:26:10,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:26:10,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:26:10,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:26:10,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:26:10,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:26:10,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:26:10,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:26:10,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:26:10,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:26:10,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:26:10,449 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 21:26:10,449 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 21:26:10,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:26:10,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:26:10,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 21:26:10,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:26:10,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:26:10,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:26:10,451 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 21:26:10,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:26:10,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:26:10,453 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_f6dd8adc-59df-48b3-9afe-f58896ea27b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89c62496deb7fbbb2a9c0a2f85e181ab5f3ba0dc [2020-11-29 21:26:10,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:26:10,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:26:10,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:26:10,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:26:10,787 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:26:10,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label02.c [2020-11-29 21:26:10,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/data/e046b2167/967ebe04dbe8404c97f37968e20c60a8/FLAG7b3ff40b4 [2020-11-29 21:26:11,467 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:26:11,468 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/sv-benchmarks/c/eca-rers2012/Problem10_label02.c [2020-11-29 21:26:11,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/data/e046b2167/967ebe04dbe8404c97f37968e20c60a8/FLAG7b3ff40b4 [2020-11-29 21:26:11,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/data/e046b2167/967ebe04dbe8404c97f37968e20c60a8 [2020-11-29 21:26:11,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:26:11,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:26:11,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:26:11,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:26:11,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:26:11,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:26:11" (1/1) ... [2020-11-29 21:26:11,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7910ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:11, skipping insertion in model container [2020-11-29 21:26:11,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:26:11" (1/1) ... [2020-11-29 21:26:11,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:26:11,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:26:12,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:26:12,299 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:26:12,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:26:12,451 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:26:12,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12 WrapperNode [2020-11-29 21:26:12,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:26:12,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:26:12,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:26:12,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:26:12,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:26:12,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:26:12,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:26:12,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:26:12,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... [2020-11-29 21:26:12,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:26:12,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:26:12,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:26:12,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:26:12,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:26:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/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 [2020-11-29 21:26:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:26:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:26:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:26:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:27:01,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:27:01,216 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:27:01,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:27:01 BoogieIcfgContainer [2020-11-29 21:27:01,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:27:01,219 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 21:27:01,219 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 21:27:01,228 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 21:27:01,229 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:27:01" (1/1) ... [2020-11-29 21:27:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:27:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 21:27:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 21:27:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 21:27:01,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-29 21:27:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 21:27:01,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:27:01,590 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-11-29 21:27:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-11-29 21:27:02,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:27:02,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:03,699 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-11-29 21:27:03,911 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2020-11-29 21:27:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:15,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2020-11-29 21:27:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2020-11-29 21:27:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:27:15,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 57 transitions. [2020-11-29 21:27:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 57 transitions. [2020-11-29 21:27:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:27:16,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:18,821 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-11-29 21:27:19,095 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2020-11-29 21:27:19,279 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 22 [2020-11-29 21:27:19,490 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 22 [2020-11-29 21:27:19,752 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 26 [2020-11-29 21:27:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:20,035 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 27 [2020-11-29 21:27:20,332 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-11-29 21:27:31,077 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-11-29 21:27:31,233 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-11-29 21:27:32,685 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 21:27:33,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:33,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 42 states and 81 transitions. [2020-11-29 21:27:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 81 transitions. [2020-11-29 21:27:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:27:33,583 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:27:35,343 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-11-29 21:27:35,668 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-11-29 21:27:36,336 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-11-29 21:27:36,625 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-11-29 21:27:37,097 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-11-29 21:27:37,664 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-11-29 21:27:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 48 states and 95 transitions. [2020-11-29 21:27:38,027 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2020-11-29 21:27:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 21:27:38,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 21:27:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 102 transitions. [2020-11-29 21:27:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 102 transitions. [2020-11-29 21:27:40,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 21:27:40,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:27:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:27:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 21:27:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:27:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 40 states and 82 transitions. [2020-11-29 21:27:41,313 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 82 transitions. [2020-11-29 21:27:41,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:27:41,314 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-29 21:27:41,321 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 21:27:41,481 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 18 [2020-11-29 21:27:41,650 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 22 [2020-11-29 21:27:41,810 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 19 [2020-11-29 21:27:41,988 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 22 [2020-11-29 21:27:41,989 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2020-11-29 21:27:42,002 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-11-29 21:27:42,003 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 21:27:42,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 09:27:42 ImpRootNode [2020-11-29 21:27:42,004 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 21:27:42,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:27:42,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:27:42,005 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:27:42,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:27:01" (3/4) ... [2020-11-29 21:27:42,008 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:27:42,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 181 nodes and edges [2020-11-29 21:27:42,053 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 21:27:42,055 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 21:27:42,057 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:27:42,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6dd8adc-59df-48b3-9afe-f58896ea27b6/bin/ukojak/witness.graphml [2020-11-29 21:27:42,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:27:42,249 INFO L168 Benchmark]: Toolchain (without parser) took 90524.82 ms. Allocated memory was 86.0 MB in the beginning and 352.3 MB in the end (delta: 266.3 MB). Free memory was 58.5 MB in the beginning and 217.3 MB in the end (delta: -158.8 MB). Peak memory consumption was 110.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,249 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 56.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:27:42,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.18 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 58.2 MB in the beginning and 80.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.03 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 71.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,251 INFO L168 Benchmark]: Boogie Preprocessor took 89.93 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 66.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,251 INFO L168 Benchmark]: RCFGBuilder took 48544.55 ms. Allocated memory was 107.0 MB in the beginning and 201.3 MB in the end (delta: 94.4 MB). Free memory was 66.7 MB in the beginning and 126.3 MB in the end (delta: -59.6 MB). Peak memory consumption was 132.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,251 INFO L168 Benchmark]: CodeCheck took 40785.43 ms. Allocated memory was 201.3 MB in the beginning and 352.3 MB in the end (delta: 151.0 MB). Free memory was 126.3 MB in the beginning and 233.2 MB in the end (delta: -106.9 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,252 INFO L168 Benchmark]: Witness Printer took 243.15 ms. Allocated memory is still 352.3 MB. Free memory was 233.2 MB in the beginning and 217.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:27:42,254 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.0s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1740 SDtfs, 3418 SDslu, 2456 SDs, 0 SdLazy, 9972 SolverSat, 1522 SolverUnsat, 80 SolverUnknown, 0 SolverNotchecked, 108.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1211 GetRequests, 1036 SyntacticMatches, 65 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6798 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 32712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 64/137 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 - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((a19 <= 5 && 14 == a4) && a12 == 0) || ((14 == a4 && (a1 <= 218 || !(a10 == 0))) && a12 == 0)) || ((14 == a4 && 7 <= a19) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((a1 <= 218 || !(a10 == 0)) || !(a19 == 6)) && 14 == a4) && a12 == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 56.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 714.18 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 58.2 MB in the beginning and 80.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.03 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 71.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.93 ms. Allocated memory is still 107.0 MB. Free memory was 71.6 MB in the beginning and 66.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 48544.55 ms. Allocated memory was 107.0 MB in the beginning and 201.3 MB in the end (delta: 94.4 MB). Free memory was 66.7 MB in the beginning and 126.3 MB in the end (delta: -59.6 MB). Peak memory consumption was 132.5 MB. Max. memory is 16.1 GB. * CodeCheck took 40785.43 ms. Allocated memory was 201.3 MB in the beginning and 352.3 MB in the end (delta: 151.0 MB). Free memory was 126.3 MB in the beginning and 233.2 MB in the end (delta: -106.9 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. * Witness Printer took 243.15 ms. Allocated memory is still 352.3 MB. Free memory was 233.2 MB in the beginning and 217.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...