./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-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_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/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 c7ed30bee3fda0a70051912ec28c31301bd11923 ........................................................................................................................................................................................................................................................................................................................................................... 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 17:23:40,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:23:40,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:23:40,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:23:40,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:23:40,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:23:40,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:23:40,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:23:40,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:23:40,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:23:40,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:23:40,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:23:40,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:23:40,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:23:40,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:23:40,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:23:40,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:23:40,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:23:40,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:23:40,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:23:40,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:23:40,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:23:40,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:23:40,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:23:40,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:23:40,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:23:40,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:23:40,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:23:40,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:23:40,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:23:40,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:23:40,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:23:40,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:23:40,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:23:40,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:23:40,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:23:40,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:23:40,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:23:40,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:23:40,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:23:40,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:23:40,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:23:40,663 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:23:40,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:23:40,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:23:40,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:23:40,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:23:40,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:23:40,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:23:40,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:23:40,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:23:40,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:23:40,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:23:40,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:23:40,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:23:40,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:23:40,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:23:40,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:23:40,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:23:40,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:23:40,674 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:23:40,674 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:23:40,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:23:40,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:23:40,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:23:40,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:23:40,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:23:40,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:23:40,676 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:23:40,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:23:40,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:23:40,677 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_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7ed30bee3fda0a70051912ec28c31301bd11923 [2020-12-01 17:23:40,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:23:41,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:23:41,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:23:41,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:23:41,027 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:23:41,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c [2020-12-01 17:23:41,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/data/cfc0f195e/aefe1a98e0574fbea0146d3cb322d59a/FLAGf3859b530 [2020-12-01 17:23:41,802 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:23:41,803 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c [2020-12-01 17:23:41,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/data/cfc0f195e/aefe1a98e0574fbea0146d3cb322d59a/FLAGf3859b530 [2020-12-01 17:23:42,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/data/cfc0f195e/aefe1a98e0574fbea0146d3cb322d59a [2020-12-01 17:23:42,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:23:42,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:23:42,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:23:42,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:23:42,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:23:42,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a935a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42, skipping insertion in model container [2020-12-01 17:23:42,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:23:42,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:23:42,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:23:42,472 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:23:42,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:23:42,549 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:23:42,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42 WrapperNode [2020-12-01 17:23:42,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:23:42,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:23:42,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:23:42,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:23:42,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:23:42,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:23:42,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:23:42,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:23:42,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... [2020-12-01 17:23:42,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:23:42,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:23:42,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:23:42,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:23:42,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:23:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/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 17:23:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:23:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:23:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:23:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 17:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 17:23:43,211 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:23:43,212 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 17:23:43,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:23:43 BoogieIcfgContainer [2020-12-01 17:23:43,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:23:43,230 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:23:43,231 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:23:43,245 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:23:43,269 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:23:43" (1/1) ... [2020-12-01 17:23:43,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:23:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 17:23:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 17:23:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:23:43,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:43,543 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 17:23:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 17:23:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 17:23:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:23:43,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:43,679 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 17:23:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2020-12-01 17:23:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2020-12-01 17:23:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:23:43,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:43,872 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 17:23:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2020-12-01 17:23:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2020-12-01 17:23:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:23:44,112 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:44,217 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 17:23:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2020-12-01 17:23:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-12-01 17:23:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:23:44,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:44,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 17:23:44,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:23:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2020-12-01 17:23:47,040 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-12-01 17:23:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:23:47,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:47,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 17:23:47,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 17:23:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 72 transitions. [2020-12-01 17:23:48,060 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2020-12-01 17:23:48,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:23:48,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:48,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 17:23:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 17:23:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 52 states and 106 transitions. [2020-12-01 17:23:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2020-12-01 17:23:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 17:23:50,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:50,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 17:23:50,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-01 17:23:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 52 states and 105 transitions. [2020-12-01 17:23:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2020-12-01 17:23:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 17:23:51,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:51,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 17:23:51,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 17:23:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 57 states and 117 transitions. [2020-12-01 17:23:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 117 transitions. [2020-12-01 17:23:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 17:23:52,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:52,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 17:23:52,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-01 17:23:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 59 states and 121 transitions. [2020-12-01 17:23:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 121 transitions. [2020-12-01 17:23:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 17:23:54,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:23:54,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 17:23:54,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:23:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 17:23:56,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:23:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 64 states and 137 transitions. [2020-12-01 17:23:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-12-01 17:23:56,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 17:23:56,876 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:23:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:23:56,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:23:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:23:56,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:23:57,279 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2020-12-01 17:23:57,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:23:57 ImpRootNode [2020-12-01 17:23:57,359 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:23:57,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:23:57,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:23:57,360 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:23:57,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:23:43" (3/4) ... [2020-12-01 17:23:57,363 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:23:57,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_61edfb1e-4e4f-432a-9adc-82dd5c24efb4/bin/ukojak/witness.graphml [2020-12-01 17:23:57,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:23:57,436 INFO L168 Benchmark]: Toolchain (without parser) took 15275.90 ms. Allocated memory was 111.1 MB in the beginning and 234.9 MB in the end (delta: 123.7 MB). Free memory was 81.3 MB in the beginning and 205.9 MB in the end (delta: -124.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:23:57,437 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:23:57,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.67 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 88.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:23:57,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.33 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:23:57,439 INFO L168 Benchmark]: Boogie Preprocessor took 53.05 ms. Allocated memory is still 111.1 MB. Free memory was 86.9 MB in the beginning and 85.9 MB in the end (delta: 953.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:23:57,440 INFO L168 Benchmark]: RCFGBuilder took 552.89 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 65.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:23:57,441 INFO L168 Benchmark]: CodeCheck took 14129.02 ms. Allocated memory was 111.1 MB in the beginning and 234.9 MB in the end (delta: 123.7 MB). Free memory was 65.9 MB in the beginning and 209.0 MB in the end (delta: -143.1 MB). Peak memory consumption was 117.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:23:57,442 INFO L168 Benchmark]: Witness Printer took 74.19 ms. Allocated memory is still 234.9 MB. Free memory was 209.0 MB in the beginning and 205.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:23:57,446 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, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.9s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35472 SDtfs, 5164 SDslu, 8604 SDs, 0 SdLazy, 44466 SolverSat, 16014 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2045 GetRequests, 1871 SyntacticMatches, 24 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9135 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 15516 SizeOfPredicates, 13 NumberOfNonLiveVariables, 672 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 127/138 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: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int A, B; [L25] long long r, d, p, q; [L26] A = __VERIFIER_nondet_uint() [L27] B = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L30] r = A [L31] d = B [L32] p = 1 [L33] q = 0 VAL [counter=0] [L35] EXPR counter++ VAL [counter=1] [L35] COND TRUE counter++<1 [L36] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L37] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(r == A) VAL [counter=1] [L38] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L38] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L39] COND FALSE !(!(r >= d)) [L41] d = 2 * d [L42] p = 2 * p VAL [counter=1] [L35] EXPR counter++ VAL [counter=2] [L35] COND FALSE !(counter++<1) [L45] EXPR counter++ VAL [counter=3] [L45] COND FALSE !(counter++<1) [L59] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L59] RET __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L60] CALL __VERIFIER_assert(B == d) VAL [counter=3] [L15] COND TRUE !(cond) VAL [counter=3] [L8] __assert_fail("0", "hard-ll.c", 8, "reach_error") VAL [counter=3] * 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 42.1 MB in the beginning and 42.0 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.67 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 88.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.33 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.05 ms. Allocated memory is still 111.1 MB. Free memory was 86.9 MB in the beginning and 85.9 MB in the end (delta: 953.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 552.89 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 65.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 14129.02 ms. Allocated memory was 111.1 MB in the beginning and 234.9 MB in the end (delta: 123.7 MB). Free memory was 65.9 MB in the beginning and 209.0 MB in the end (delta: -143.1 MB). Peak memory consumption was 117.1 MB. Max. memory is 16.1 GB. * Witness Printer took 74.19 ms. Allocated memory is still 234.9 MB. Free memory was 209.0 MB in the beginning and 205.9 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...