./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.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_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/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 faea21126d1b7451c89543ab57ac45d6b42bc205 ........................................................................................................................................................................................................................................................................... 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 04:33:48,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:48,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:48,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:48,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:48,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:48,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:48,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:48,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:48,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:48,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:48,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:48,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:48,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:48,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:48,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:48,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:48,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:48,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:48,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:48,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:48,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:48,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:48,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:48,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:48,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:48,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:48,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:48,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:48,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:48,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:48,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:48,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:48,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:48,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:48,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:48,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:48,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:48,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:48,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:48,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:48,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:33:48,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:48,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:48,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:48,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:48,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:48,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:48,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:48,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:33:48,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:48,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:33:48,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:48,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:48,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:48,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:48,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:33:48,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:48,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:48,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:48,612 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:48,612 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:48,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:48,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:48,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:48,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:48,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:48,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:48,614 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:48,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:48,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:48,615 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_c5d941a6-460d-4044-9800-053627f13366/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faea21126d1b7451c89543ab57ac45d6b42bc205 [2020-11-28 04:33:48,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:49,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:49,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:49,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:49,013 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:49,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c [2020-11-28 04:33:49,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/data/2d10bd92c/8cbf48cda6604114941c177caa0a8f60/FLAG2c37d2aed [2020-11-28 04:33:49,604 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:49,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c [2020-11-28 04:33:49,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/data/2d10bd92c/8cbf48cda6604114941c177caa0a8f60/FLAG2c37d2aed [2020-11-28 04:33:49,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/data/2d10bd92c/8cbf48cda6604114941c177caa0a8f60 [2020-11-28 04:33:49,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:49,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:49,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:49,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:49,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:49,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:49" (1/1) ... [2020-11-28 04:33:49,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5936b14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:49, skipping insertion in model container [2020-11-28 04:33:49,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:49" (1/1) ... [2020-11-28 04:33:49,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:49,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:50,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:50,217 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:50,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:50,277 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:50,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50 WrapperNode [2020-11-28 04:33:50,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:50,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:50,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:50,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:50,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:50,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:50,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:50,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:50,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:50,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:50,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:50,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:50,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/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 04:33:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:33:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:33:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:50,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:33:50,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:33:50,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:50,908 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:33:50,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50 BoogieIcfgContainer [2020-11-28 04:33:50,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:50,910 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:50,911 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:50,920 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:50,920 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:50,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-28 04:33:50,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-28 04:33:50,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:50,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-28 04:33:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-28 04:33:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:51,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:33:51,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-11-28 04:33:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-28 04:33:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:51,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:33:51,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-11-28 04:33:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-28 04:33:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:51,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:33:51,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2020-11-28 04:33:52,517 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2020-11-28 04:33:52,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:33:52,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:52,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:52,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:52,586 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-28 04:33:52,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:52 ImpRootNode [2020-11-28 04:33:52,617 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:52,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:52,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:52,618 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:52,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50" (3/4) ... [2020-11-28 04:33:52,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:33:52,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c5d941a6-460d-4044-9800-053627f13366/bin/ukojak/witness.graphml [2020-11-28 04:33:52,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:52,674 INFO L168 Benchmark]: Toolchain (without parser) took 2719.50 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.3 MB in the beginning and 72.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,675 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.05 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 70.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.24 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,677 INFO L168 Benchmark]: Boogie Preprocessor took 45.60 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.9 MB in the end (delta: 996.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,678 INFO L168 Benchmark]: RCFGBuilder took 528.43 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 54.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,679 INFO L168 Benchmark]: CodeCheck took 1706.80 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 74.3 MB in the end (delta: -20.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,679 INFO L168 Benchmark]: Witness Printer took 54.70 ms. Allocated memory is still 111.1 MB. Free memory was 74.3 MB in the beginning and 72.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,686 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, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 222 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 805 SizeOfPredicates, 5 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L23] y = 0 [L24] x = 0 [L25] c = 0 VAL [counter=0] [L27] EXPR counter++ VAL [counter=1] [L27] COND TRUE counter++<1 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [counter=1] [L10] COND FALSE !(!(cond)) VAL [counter=1] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [counter=1] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [counter=1] [L27] EXPR counter++ VAL [counter=2] [L27] COND FALSE !(counter++<1) [L37] CALL __VERIFIER_assert(k*y - (y*y) == 0) VAL [counter=2] [L10] COND TRUE !(cond) VAL [counter=2] [L3] __assert_fail("0", "ps4-ll.c", 3, "reach_error") VAL [counter=2] * 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 was 57.0 MB in the beginning and 57.0 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.05 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 70.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.24 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.60 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.9 MB in the end (delta: 996.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 528.43 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 54.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1706.80 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 74.3 MB in the end (delta: -20.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 54.70 ms. Allocated memory is still 111.1 MB. Free memory was 74.3 MB in the beginning and 72.3 MB in the end (delta: 2.1 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...