./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_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_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/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 0f1ad3cc0bcd12cb7a0202fe36e84d61809d1d7f ................................................................................................................................................................................................................................................................................................................................................. 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 16:52:00,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:52:00,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:52:00,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:52:00,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:52:00,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:52:00,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:52:00,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:52:00,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:52:00,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:52:00,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:52:00,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:52:00,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:52:00,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:52:00,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:52:00,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:52:00,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:52:00,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:52:00,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:52:00,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:52:00,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:52:00,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:52:00,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:52:00,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:52:00,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:52:00,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:52:00,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:52:00,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:52:00,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:52:00,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:52:00,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:52:00,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:52:00,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:52:00,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:52:00,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:52:00,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:52:00,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:52:00,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:52:00,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:52:00,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:52:00,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:52:00,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:52:00,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:52:00,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:52:00,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:52:00,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:52:00,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:52:00,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:52:00,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:52:00,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:52:00,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:52:00,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:52:00,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:52:00,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:52:00,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:52:00,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:52:00,873 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:52:00,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:52:00,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:52:00,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:52:00,875 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:52:00,875 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:52:00,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:52:00,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:52:00,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:52:00,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:52:00,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:52:00,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:52:00,877 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:52:00,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:52:00,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:52:00,878 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_4afadfea-e85a-4674-81da-6e5f8bddf9f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1ad3cc0bcd12cb7a0202fe36e84d61809d1d7f [2020-12-01 16:52:01,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:52:01,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:52:01,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:52:01,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:52:01,211 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:52:01,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2020-12-01 16:52:01,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/data/83de47dd7/6c9003d67e4b4c03ab67b66c5d419b60/FLAG8be95f93d [2020-12-01 16:52:01,944 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:52:01,945 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound1.c [2020-12-01 16:52:01,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/data/83de47dd7/6c9003d67e4b4c03ab67b66c5d419b60/FLAG8be95f93d [2020-12-01 16:52:02,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/data/83de47dd7/6c9003d67e4b4c03ab67b66c5d419b60 [2020-12-01 16:52:02,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:52:02,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:52:02,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:52:02,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:52:02,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:52:02,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6746b149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02, skipping insertion in model container [2020-12-01 16:52:02,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:52:02,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:52:02,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:52:02,623 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:52:02,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:52:02,664 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:52:02,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02 WrapperNode [2020-12-01 16:52:02,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:52:02,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:52:02,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:52:02,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:52:02,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:52:02,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:52:02,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:52:02,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:52:02,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... [2020-12-01 16:52:02,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:52:02,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:52:02,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:52:02,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:52:02,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:52:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:52:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:52:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:52:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:52:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:52:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:52:03,189 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:52:03,190 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 16:52:03,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:03 BoogieIcfgContainer [2020-12-01 16:52:03,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:52:03,194 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:52:03,194 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:52:03,207 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:52:03,208 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:03" (1/1) ... [2020-12-01 16:52:03,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:52:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 16:52:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 16:52:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:52:03,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 16:52:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 16:52:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:52:03,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2020-12-01 16:52:03,863 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2020-12-01 16:52:03,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:52:03,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2020-12-01 16:52:04,255 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2020-12-01 16:52:04,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:52:04,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:04,373 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 16:52:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2020-12-01 16:52:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-12-01 16:52:04,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:52:04,761 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:04,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 16:52:04,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:05,150 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 16:52:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2020-12-01 16:52:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-12-01 16:52:06,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:52:06,407 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:06,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:52:06,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:06,641 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 16:52:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 94 transitions. [2020-12-01 16:52:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2020-12-01 16:52:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:52:08,021 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:08,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 16:52:08,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 16:52:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 52 states and 106 transitions. [2020-12-01 16:52:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2020-12-01 16:52:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:52:08,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:08,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:52:08,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:08,987 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 16:52:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 52 states and 105 transitions. [2020-12-01 16:52:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2020-12-01 16:52:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:52:09,365 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:09,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 16:52:09,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:09,459 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 16:52:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 54 states and 107 transitions. [2020-12-01 16:52:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 107 transitions. [2020-12-01 16:52:09,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:52:09,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:52:09,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:52:09,996 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 16:52:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 59 states and 121 transitions. [2020-12-01 16:52:10,876 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 121 transitions. [2020-12-01 16:52:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:52:10,880 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:52:10,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:52:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:52:10,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:52:11,345 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-12-01 16:52:11,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:52:11 ImpRootNode [2020-12-01 16:52:11,439 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:52:11,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:52:11,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:52:11,440 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:52:11,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:03" (3/4) ... [2020-12-01 16:52:11,443 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:52:11,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4afadfea-e85a-4674-81da-6e5f8bddf9f7/bin/ukojak/witness.graphml [2020-12-01 16:52:11,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:52:11,511 INFO L168 Benchmark]: Toolchain (without parser) took 9190.61 ms. Allocated memory was 102.8 MB in the beginning and 220.2 MB in the end (delta: 117.4 MB). Free memory was 76.6 MB in the beginning and 171.2 MB in the end (delta: -94.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,512 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:52:11,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.47 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 80.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.25 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,514 INFO L168 Benchmark]: Boogie Preprocessor took 28.60 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:52:11,514 INFO L168 Benchmark]: RCFGBuilder took 453.15 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 61.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,515 INFO L168 Benchmark]: CodeCheck took 8245.32 ms. Allocated memory was 102.8 MB in the beginning and 220.2 MB in the end (delta: 117.4 MB). Free memory was 60.9 MB in the beginning and 174.4 MB in the end (delta: -113.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,516 INFO L168 Benchmark]: Witness Printer took 69.49 ms. Allocated memory is still 220.2 MB. Free memory was 174.4 MB in the beginning and 171.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:11,520 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: 8.1s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17728 SDtfs, 2636 SDslu, 4468 SDs, 0 SdLazy, 23010 SolverSat, 8198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1773 GetRequests, 1614 SyntacticMatches, 23 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7418 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 10648 SizeOfPredicates, 11 NumberOfNonLiveVariables, 564 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 100/118 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] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [counter=0] [L34] EXPR counter++ VAL [counter=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L36] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [counter=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [counter=1] [L34] EXPR counter++ VAL [counter=2] [L34] COND FALSE !(counter++<1) [L44] EXPR counter++ VAL [counter=3] [L44] COND FALSE !(counter++<1) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L58] RET __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L59] CALL __VERIFIER_assert(B == d) VAL [counter=3] [L15] COND TRUE !(cond) VAL [counter=3] [L8] __assert_fail("0", "hard2.c", 8, "reach_error") VAL [counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.47 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 80.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.25 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.60 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 453.15 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 61.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 8245.32 ms. Allocated memory was 102.8 MB in the beginning and 220.2 MB in the end (delta: 117.4 MB). Free memory was 60.9 MB in the beginning and 174.4 MB in the end (delta: -113.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 69.49 ms. Allocated memory is still 220.2 MB. Free memory was 174.4 MB in the beginning and 171.2 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...