./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/brs2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/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 73252317e8e8ddde1fed282fcf12f7cfbb9f94a9 .................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 03:42:07,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:42:07,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:42:07,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:42:07,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:42:07,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:42:07,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:42:07,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:42:07,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:42:07,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:42:07,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:42:07,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:42:07,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:42:07,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:42:07,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:42:07,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:42:07,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:42:07,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:42:07,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:42:07,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:42:07,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:42:07,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:42:07,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:42:07,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:42:07,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:42:07,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:42:07,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:42:07,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:42:07,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:42:07,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:42:07,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:42:07,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:42:07,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:42:07,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:42:07,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:42:07,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:42:07,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:42:07,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:42:07,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:42:07,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:42:07,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:42:07,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 03:42:07,683 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:42:07,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:42:07,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 03:42:07,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 03:42:07,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:42:07,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:42:07,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:42:07,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:42:07,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:42:07,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:42:07,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:42:07,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:42:07,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:42:07,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:42:07,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:42:07,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:42:07,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:42:07,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:42:07,690 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 03:42:07,690 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 03:42:07,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:42:07,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:42:07,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 03:42:07,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:42:07,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:42:07,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:42:07,692 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 03:42:07,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:42:07,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:42:07,692 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_37c15f38-d9db-46c2-8980-2e226b4aa5c3/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 -> 73252317e8e8ddde1fed282fcf12f7cfbb9f94a9 [2019-11-20 03:42:07,844 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:42:07,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:42:07,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:42:07,862 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:42:07,863 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:42:07,864 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/../../sv-benchmarks/c/array-fpi/brs2f.c [2019-11-20 03:42:07,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/data/6ab3cbbb4/a866b462e40f4001be56dfdc50952f67/FLAG3b7c07130 [2019-11-20 03:42:08,361 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:42:08,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/sv-benchmarks/c/array-fpi/brs2f.c [2019-11-20 03:42:08,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/data/6ab3cbbb4/a866b462e40f4001be56dfdc50952f67/FLAG3b7c07130 [2019-11-20 03:42:08,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/data/6ab3cbbb4/a866b462e40f4001be56dfdc50952f67 [2019-11-20 03:42:08,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:42:08,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:42:08,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:42:08,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:42:08,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:42:08,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc7e010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08, skipping insertion in model container [2019-11-20 03:42:08,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,411 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:42:08,431 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:42:08,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:42:08,662 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:42:08,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:42:08,698 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:42:08,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08 WrapperNode [2019-11-20 03:42:08,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:42:08,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:42:08,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:42:08,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:42:08,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:42:08,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:42:08,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:42:08,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:42:08,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... [2019-11-20 03:42:08,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:42:08,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:42:08,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:42:08,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:42:08,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:42:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/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 [2019-11-20 03:42:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:42:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:42:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:42:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:42:08,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:42:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 03:42:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:42:09,168 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:42:09,169 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 03:42:09,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:42:09 BoogieIcfgContainer [2019-11-20 03:42:09,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:42:09,171 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 03:42:09,171 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 03:42:09,181 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 03:42:09,182 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:42:09" (1/1) ... [2019-11-20 03:42:09,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:42:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2019-11-20 03:42:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2019-11-20 03:42:09,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:42:09,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:42:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2019-11-20 03:42:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2019-11-20 03:42:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 03:42:09,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:42:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:09,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-11-20 03:42:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-11-20 03:42:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 03:42:09,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:42:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:10,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2019-11-20 03:42:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2019-11-20 03:42:10,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 03:42:10,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:10,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:42:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 17 states and 31 transitions. [2019-11-20 03:42:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 31 transitions. [2019-11-20 03:42:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 03:42:10,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:42:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 20 states and 37 transitions. [2019-11-20 03:42:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 37 transitions. [2019-11-20 03:42:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 03:42:12,570 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:42:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:42:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:42:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 24 states and 46 transitions. [2019-11-20 03:42:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 46 transitions. [2019-11-20 03:42:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 03:42:13,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:42:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:42:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:42:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:42:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:42:13,855 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2019-11-20 03:42:13,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 03:42:13 ImpRootNode [2019-11-20 03:42:13,924 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 03:42:13,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:42:13,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:42:13,925 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:42:13,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:42:09" (3/4) ... [2019-11-20 03:42:13,928 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:42:14,029 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37c15f38-d9db-46c2-8980-2e226b4aa5c3/bin/ukojak/witness.graphml [2019-11-20 03:42:14,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:42:14,032 INFO L168 Benchmark]: Toolchain (without parser) took 5640.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:42:14,032 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:42:14,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:42:14,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:42:14,034 INFO L168 Benchmark]: Boogie Preprocessor took 22.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:42:14,035 INFO L168 Benchmark]: RCFGBuilder took 416.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:42:14,035 INFO L168 Benchmark]: CodeCheck took 4753.53 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:42:14,036 INFO L168 Benchmark]: Witness Printer took 105.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:42:14,039 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, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 112 SDslu, 0 SDs, 0 SdLazy, 1308 SolverSat, 612 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 443 SyntacticMatches, 5 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3182 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/22 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] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] i=0 VAL [N=3] [L26] COND TRUE i