./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modpf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/modpf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1557648863313236f1d48be8d1696695bc98e12 .................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-01 05:07:06,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 05:07:06,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 05:07:06,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 05:07:06,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 05:07:06,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 05:07:06,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 05:07:06,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 05:07:06,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 05:07:06,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 05:07:06,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 05:07:06,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 05:07:06,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 05:07:06,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 05:07:06,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 05:07:06,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 05:07:06,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 05:07:06,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 05:07:06,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 05:07:06,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 05:07:06,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 05:07:06,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 05:07:06,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 05:07:06,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 05:07:06,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 05:07:06,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 05:07:06,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 05:07:06,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 05:07:06,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 05:07:06,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 05:07:06,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 05:07:06,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 05:07:06,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 05:07:06,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 05:07:06,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 05:07:06,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 05:07:06,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 05:07:06,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 05:07:06,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 05:07:06,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 05:07:06,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 05:07:06,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 05:07:06,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 05:07:06,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 05:07:06,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 05:07:06,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 05:07:06,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 05:07:06,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 05:07:06,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 05:07:06,837 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 05:07:06,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 05:07:06,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 05:07:06,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 05:07:06,839 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 05:07:06,839 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 05:07:06,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 05:07:06,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 05:07:06,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 05:07:06,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 05:07:06,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 05:07:06,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 05:07:06,840 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 05:07:06,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 05:07:06,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 05:07:06,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/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(__VERIFIER_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 -> b1557648863313236f1d48be8d1696695bc98e12 [2019-12-01 05:07:06,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 05:07:06,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 05:07:06,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 05:07:06,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 05:07:06,952 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 05:07:06,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/../../sv-benchmarks/c/array-fpi/modpf.c [2019-12-01 05:07:06,993 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/data/6276b0716/ea8e4039ae754bd1a36f05619a8195bc/FLAG743d5d37c [2019-12-01 05:07:07,296 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 05:07:07,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/sv-benchmarks/c/array-fpi/modpf.c [2019-12-01 05:07:07,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/data/6276b0716/ea8e4039ae754bd1a36f05619a8195bc/FLAG743d5d37c [2019-12-01 05:07:07,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/data/6276b0716/ea8e4039ae754bd1a36f05619a8195bc [2019-12-01 05:07:07,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 05:07:07,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 05:07:07,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 05:07:07,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 05:07:07,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 05:07:07,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:07,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5334b737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07, skipping insertion in model container [2019-12-01 05:07:07,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:07,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 05:07:07,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 05:07:07,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 05:07:07,929 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 05:07:07,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 05:07:07,958 INFO L208 MainTranslator]: Completed translation [2019-12-01 05:07:07,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07 WrapperNode [2019-12-01 05:07:07,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 05:07:07,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 05:07:07,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 05:07:07,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 05:07:07,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:07,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:07,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 05:07:07,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 05:07:07,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 05:07:07,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 05:07:08,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... [2019-12-01 05:07:08,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 05:07:08,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 05:07:08,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 05:07:08,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 05:07:08,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/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 [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 05:07:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 05:07:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 05:07:08,250 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 05:07:08,251 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-01 05:07:08,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:08 BoogieIcfgContainer [2019-12-01 05:07:08,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 05:07:08,252 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 05:07:08,252 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 05:07:08,259 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 05:07:08,259 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:08" (1/1) ... [2019-12-01 05:07:08,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 05:07:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 05:07:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2019-12-01 05:07:08,290 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2019-12-01 05:07:08,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 05:07:08,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 05:07:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 05:07:08,376 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-01 05:07:08,379 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-01 05:07:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 05:07:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 05:07:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-12-01 05:07:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-12-01 05:07:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 05:07:08,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 05:07:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 05:07:08,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-01 05:07:08,461 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-01 05:07:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-01 05:07:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 05:07:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2019-12-01 05:07:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2019-12-01 05:07:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 05:07:08,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 05:07:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 05:07:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 05:07:08,569 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-12-01 05:07:08,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:07:08 ImpRootNode [2019-12-01 05:07:08,595 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 05:07:08,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 05:07:08,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 05:07:08,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 05:07:08,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:08" (3/4) ... [2019-12-01 05:07:08,597 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 05:07:08,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7f1bf31e-6ae8-412f-a045-bd77277cdbbb/bin/ukojak/witness.graphml [2019-12-01 05:07:08,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 05:07:08,637 INFO L168 Benchmark]: Toolchain (without parser) took 896.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -83.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,637 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 05:07:08,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 05:07:08,639 INFO L168 Benchmark]: Boogie Preprocessor took 24.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,639 INFO L168 Benchmark]: RCFGBuilder took 235.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,640 INFO L168 Benchmark]: CodeCheck took 342.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,640 INFO L168 Benchmark]: Witness Printer took 40.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 05:07:08,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 2 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] int sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i