./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.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_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/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 c8b3f04ec92be96a6d3b17ca538a3be31737a820 ............................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 18:25:12,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:25:12,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:25:12,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:25:12,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:25:12,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:25:12,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:25:12,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:25:12,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:25:12,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:25:12,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:25:12,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:25:12,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:25:12,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:25:12,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:25:12,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:25:12,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:25:12,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:25:12,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:25:12,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:25:12,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:25:12,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:25:12,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:25:12,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:25:12,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:25:12,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:25:12,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:25:12,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:25:12,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:25:12,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:25:12,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:25:12,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:25:12,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:25:12,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:25:12,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:25:12,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:25:12,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:25:12,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:25:12,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:25:12,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:25:12,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:25:12,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:25:12,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:25:12,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:25:12,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:25:12,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:25:12,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:25:12,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:25:12,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:25:12,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:25:12,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:25:12,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:25:12,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:25:12,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:25:12,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:25:12,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:25:12,936 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:25:12,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:25:12,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:25:12,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:25:12,937 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:25:12,937 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:25:12,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:25:12,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:25:12,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:25:12,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:25:12,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:25:12,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:25:12,939 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:25:12,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:25:12,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:25:12,940 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_f2b71305-f99b-4aa6-8838-b3c2c81bda25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b3f04ec92be96a6d3b17ca538a3be31737a820 [2020-12-01 18:25:13,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:25:13,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:25:13,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:25:13,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:25:13,353 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:25:13,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-12-01 18:25:13,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/data/e7bb0425c/83acfdec75e242b489d7d3f0d1f2499b/FLAGe155e2a53 [2020-12-01 18:25:14,076 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:25:14,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-12-01 18:25:14,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/data/e7bb0425c/83acfdec75e242b489d7d3f0d1f2499b/FLAGe155e2a53 [2020-12-01 18:25:14,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/data/e7bb0425c/83acfdec75e242b489d7d3f0d1f2499b [2020-12-01 18:25:14,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:25:14,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:25:14,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:25:14,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:25:14,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:25:14,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48037fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14, skipping insertion in model container [2020-12-01 18:25:14,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:25:14,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:25:14,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:25:14,661 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:25:14,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:25:14,693 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:25:14,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14 WrapperNode [2020-12-01 18:25:14,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:25:14,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:25:14,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:25:14,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:25:14,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:25:14,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:25:14,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:25:14,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:25:14,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... [2020-12-01 18:25:14,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:25:14,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:25:14,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:25:14,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:25:14,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:25:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/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 18:25:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:25:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:25:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:25:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:25:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 18:25:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 18:25:15,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:25:15,284 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 18:25:15,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:25:15 BoogieIcfgContainer [2020-12-01 18:25:15,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:25:15,288 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:25:15,288 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:25:15,300 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:25:15,301 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:25:15" (1/1) ... [2020-12-01 18:25:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:25:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:25:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-12-01 18:25:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-12-01 18:25:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:25:15,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:25:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:25:15,503 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 18:25:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:25:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 18:25:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 18:25:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:25:15,513 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:25:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:25:15,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 18:25:15,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:25:15,716 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 18:25:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:25:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-12-01 18:25:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 18:25:15,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:25:15,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:25:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:25:15,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 18:25:15,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:25:16,045 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 18:25:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:25:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2020-12-01 18:25:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-12-01 18:25:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:25:16,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:25:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:25:16,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 18:25:16,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:25:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:25:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:25:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-12-01 18:25:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-12-01 18:25:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:25:16,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:25:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:25:16,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:25:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:25:16,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:25:16,750 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-12-01 18:25:16,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:25:16 ImpRootNode [2020-12-01 18:25:16,814 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:25:16,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:25:16,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:25:16,820 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:25:16,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:25:15" (3/4) ... [2020-12-01 18:25:16,824 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:25:16,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2b71305-f99b-4aa6-8838-b3c2c81bda25/bin/ukojak/witness.graphml [2020-12-01 18:25:16,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:25:16,916 INFO L168 Benchmark]: Toolchain (without parser) took 2504.90 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.7 MB in the beginning and 64.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,916 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 102.8 MB. Free memory was 74.6 MB in the beginning and 74.6 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:25:16,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.19 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 79.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.93 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,918 INFO L168 Benchmark]: Boogie Preprocessor took 21.51 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 77.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:25:16,919 INFO L168 Benchmark]: RCFGBuilder took 531.55 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 57.1 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,920 INFO L168 Benchmark]: CodeCheck took 1526.65 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 57.1 MB in the beginning and 67.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,920 INFO L168 Benchmark]: Witness Printer took 94.22 ms. Allocated memory is still 123.7 MB. Free memory was 67.5 MB in the beginning and 64.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:25:16,924 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 114 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 166 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 601 SizeOfPredicates, 6 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 27 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] int counter = 0; [L22] int a, b; [L23] long long x, y, z; [L25] a = __VERIFIER_nondet_int() [L26] b = __VERIFIER_nondet_int() [L10] COND FALSE !(!cond) [L29] x = a [L30] y = b [L31] z = 0 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [counter=1] [L13] COND FALSE !(!(cond)) VAL [counter=1] [L34] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [counter=1] [L35] COND FALSE !(!(y != 0)) [L38] COND FALSE !(y % 2 == 1) [L42] x = 2 * x [L43] y = y / 2 VAL [counter=1] [L33] EXPR counter++ VAL [counter=2] [L33] COND FALSE !(counter++<1) [L45] CALL __VERIFIER_assert(z == (long long) a * b) VAL [counter=2] [L13] COND TRUE !(cond) VAL [counter=2] [L6] __assert_fail("0", "prodbin-ll.c", 6, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 102.8 MB. Free memory was 74.6 MB in the beginning and 74.6 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.19 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 79.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.93 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.51 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 77.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 531.55 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 57.1 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 1526.65 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 57.1 MB in the beginning and 67.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Witness Printer took 94.22 ms. Allocated memory is still 123.7 MB. Free memory was 67.5 MB in the beginning and 64.5 MB in the end (delta: 3.1 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...