./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label35.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label35.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/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 9c283127d7a040d207a984ab17281f4e82ca44d0 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:43:18,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:43:18,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:43:18,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:43:18,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:43:18,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:43:18,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:43:18,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:43:18,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:43:18,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:43:18,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:43:18,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:43:18,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:43:18,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:43:18,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:43:18,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:43:18,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:43:18,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:43:18,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:43:18,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:43:18,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:43:18,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:43:18,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:43:18,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:43:18,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:43:18,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:43:18,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:43:18,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:43:18,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:43:18,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:43:18,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:43:18,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:43:18,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:43:18,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:43:18,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:43:18,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:43:18,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:43:18,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:43:18,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:43:18,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:43:18,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:43:18,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:43:18,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:43:18,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:43:18,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:43:18,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:43:18,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:43:18,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:43:18,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:43:18,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:43:18,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:43:18,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:43:18,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:43:18,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:43:18,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:43:18,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:43:18,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:43:18,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:43:18,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:43:18,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:43:18,460 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:43:18,460 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:43:18,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:43:18,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:43:18,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:43:18,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:43:18,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:43:18,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:43:18,461 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:43:18,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:43:18,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:43:18,462 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_1778e129-2785-47e8-b050-586cfc132259/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c283127d7a040d207a984ab17281f4e82ca44d0 [2020-12-01 16:43:18,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:43:18,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:43:18,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:43:18,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:43:18,763 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:43:18,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem16_label35.c [2020-12-01 16:43:18,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/data/d9e3c12e4/d2fa3905195b4d74a1557d8e929b2cf6/FLAG7afada256 [2020-12-01 16:43:19,705 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:43:19,706 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/sv-benchmarks/c/eca-rers2012/Problem16_label35.c [2020-12-01 16:43:19,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/data/d9e3c12e4/d2fa3905195b4d74a1557d8e929b2cf6/FLAG7afada256 [2020-12-01 16:43:19,815 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/data/d9e3c12e4/d2fa3905195b4d74a1557d8e929b2cf6 [2020-12-01 16:43:19,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:43:19,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:43:19,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:43:19,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:43:19,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:43:19,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:43:19" (1/1) ... [2020-12-01 16:43:19,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400125a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:19, skipping insertion in model container [2020-12-01 16:43:19,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:43:19" (1/1) ... [2020-12-01 16:43:19,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:43:19,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:43:20,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:43:20,675 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:43:20,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:43:21,003 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:43:21,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21 WrapperNode [2020-12-01 16:43:21,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:43:21,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:43:21,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:43:21,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:43:21,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:43:21,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:43:21,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:43:21,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:43:21,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... [2020-12-01 16:43:21,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:43:21,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:43:21,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:43:21,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:43:21,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/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 [2020-12-01 16:43:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:43:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:43:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:43:21,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:44:38,096 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:44:38,097 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-01 16:44:38,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:44:38 BoogieIcfgContainer [2020-12-01 16:44:38,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:44:38,103 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:44:38,104 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:44:38,117 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:44:38,118 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:44:38" (1/1) ... [2020-12-01 16:44:38,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:44:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:44:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:44:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:44:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:44:38,168 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:44:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:44:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:44:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:44:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-01 16:44:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-01 16:44:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:44:38,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:44:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:44:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:44:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:44:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2020-12-01 16:44:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-12-01 16:44:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:44:53,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:44:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:44:56,548 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2020-12-01 16:44:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:44:58,356 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2020-12-01 16:45:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2020-12-01 16:45:01,624 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2020-12-01 16:45:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:45:01,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:05,961 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-01 16:45:06,856 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-01 16:45:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 37 states and 70 transitions. [2020-12-01 16:45:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 70 transitions. [2020-12-01 16:45:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:45:18,567 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:25,504 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-12-01 16:45:25,771 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-12-01 16:45:26,644 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2020-12-01 16:45:26,826 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-01 16:45:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:30,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 48 states and 96 transitions. [2020-12-01 16:45:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2020-12-01 16:45:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:45:30,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 50 states and 99 transitions. [2020-12-01 16:45:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 99 transitions. [2020-12-01 16:45:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:45:35,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-01 16:45:41,426 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2020-12-01 16:45:42,231 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2020-12-01 16:45:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 108 transitions. [2020-12-01 16:45:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 108 transitions. [2020-12-01 16:45:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:45:42,716 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-01 16:45:48,163 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2020-12-01 16:45:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 54 states and 107 transitions. [2020-12-01 16:45:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 107 transitions. [2020-12-01 16:45:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:45:48,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-01 16:45:56,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 51 states and 103 transitions. [2020-12-01 16:45:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 103 transitions. [2020-12-01 16:45:56,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:45:56,197 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2020-12-01 16:45:56,206 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:45:56,513 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 21 [2020-12-01 16:45:56,938 WARN L197 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 22 [2020-12-01 16:45:57,391 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 21 [2020-12-01 16:45:57,803 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 21 [2020-12-01 16:45:57,803 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-12-01 16:45:57,815 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:45:57,816 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 16:45:57,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:45:57 ImpRootNode [2020-12-01 16:45:57,818 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:45:57,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:45:57,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:45:57,819 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:45:57,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:44:38" (3/4) ... [2020-12-01 16:45:57,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:45:57,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 371 nodes and edges [2020-12-01 16:45:57,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 16:45:57,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 16:45:57,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:45:58,218 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1778e129-2785-47e8-b050-586cfc132259/bin/ukojak/witness.graphml [2020-12-01 16:45:58,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:45:58,220 INFO L168 Benchmark]: Toolchain (without parser) took 158397.72 ms. Allocated memory was 96.5 MB in the beginning and 6.3 GB in the end (delta: 6.2 GB). Free memory was 57.2 MB in the beginning and 5.0 GB in the end (delta: -5.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,220 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:45:58,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1180.57 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 62.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 189.70 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 38.4 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,222 INFO L168 Benchmark]: Boogie Preprocessor took 183.69 ms. Allocated memory is still 96.5 MB. Free memory was 38.0 MB in the beginning and 43.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,223 INFO L168 Benchmark]: RCFGBuilder took 76718.55 ms. Allocated memory was 96.5 MB in the beginning and 5.9 GB in the end (delta: 5.8 GB). Free memory was 43.5 MB in the beginning and 5.1 GB in the end (delta: -5.1 GB). Peak memory consumption was 863.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,224 INFO L168 Benchmark]: CodeCheck took 79715.08 ms. Allocated memory was 5.9 GB in the beginning and 6.3 GB in the end (delta: 408.9 MB). Free memory was 5.1 GB in the beginning and 5.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 450.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,225 INFO L168 Benchmark]: Witness Printer took 399.58 ms. Allocated memory is still 6.3 GB. Free memory was 5.1 GB in the beginning and 5.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:58,228 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: 78.0s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3572 SDtfs, 7372 SDslu, 5096 SDs, 0 SdLazy, 22246 SolverSat, 3962 SolverUnsat, 256 SolverUnknown, 0 SolverNotchecked, 202.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1589 GetRequests, 1452 SyntacticMatches, 35 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5902 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 23.5s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 32288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 186/294 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: 13]: 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: 33]: Loop Invariant Derived loop invariant: ((((4 <= a15 || !(a16 == 9)) || a15 <= 2) || a12 <= 8) || !(a18 + 156 <= 0)) || 9 < a12 - InvariantResult [Line: 1777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: (((((10 <= a12 || 4 <= a15) || a15 <= 2) || 10 <= a16) || a16 <= 8) || a12 <= 8) || 0 < a18 + 156 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1180.57 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 62.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 189.70 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 38.4 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 183.69 ms. Allocated memory is still 96.5 MB. Free memory was 38.0 MB in the beginning and 43.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 76718.55 ms. Allocated memory was 96.5 MB in the beginning and 5.9 GB in the end (delta: 5.8 GB). Free memory was 43.5 MB in the beginning and 5.1 GB in the end (delta: -5.1 GB). Peak memory consumption was 863.2 MB. Max. memory is 16.1 GB. * CodeCheck took 79715.08 ms. Allocated memory was 5.9 GB in the beginning and 6.3 GB in the end (delta: 408.9 MB). Free memory was 5.1 GB in the beginning and 5.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 450.9 MB. Max. memory is 16.1 GB. * Witness Printer took 399.58 ms. Allocated memory is still 6.3 GB. Free memory was 5.1 GB in the beginning and 5.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...