./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5c53a6d62fed0622838fea72ad24550253a2b4bc .................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-29 18:17:16,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:17:16,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:17:17,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:17:17,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:17:17,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:17:17,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:17:17,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:17:17,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:17:17,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:17:17,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:17:17,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:17:17,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:17:17,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:17:17,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:17:17,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:17:17,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:17:17,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:17:17,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:17:17,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:17:17,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:17:17,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:17:17,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:17:17,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:17:17,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:17:17,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:17:17,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:17:17,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:17:17,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:17:17,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:17:17,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:17:17,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:17:17,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:17:17,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:17:17,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:17:17,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:17:17,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:17:17,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:17:17,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:17:17,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:17:17,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:17:17,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:17:17,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:17:17,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:17:17,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:17:17,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:17:17,196 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:17:17,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:17:17,197 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:17:17,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:17:17,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:17:17,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:17:17,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:17:17,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:17:17,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:17:17,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:17:17,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:17:17,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:17:17,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:17:17,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:17:17,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:17:17,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:17:17,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:17:17,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:17:17,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:17:17,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:17:17,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:17:17,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:17:17,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:17:17,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:17:17,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:17:17,207 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_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c53a6d62fed0622838fea72ad24550253a2b4bc [2020-11-29 18:17:17,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:17:17,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:17:17,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:17:17,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:17:17,675 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:17:17,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test12.c [2020-11-29 18:17:17,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/data/7a8a11529/fb6a4971757d48b3bf063891f045f3cd/FLAG31d2663b4 [2020-11-29 18:17:18,359 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:17:18,360 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/sv-benchmarks/c/ldv-regression/test12.c [2020-11-29 18:17:18,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/data/7a8a11529/fb6a4971757d48b3bf063891f045f3cd/FLAG31d2663b4 [2020-11-29 18:17:18,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/data/7a8a11529/fb6a4971757d48b3bf063891f045f3cd [2020-11-29 18:17:18,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:17:18,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:17:18,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:18,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:17:18,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:17:18,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:18,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785c03cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18, skipping insertion in model container [2020-11-29 18:17:18,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:18,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:17:18,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:17:18,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:18,964 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:17:18,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:18,997 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:17:18,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18 WrapperNode [2020-11-29 18:17:18,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:19,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:17:19,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:17:19,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:17:19,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:17:19,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:17:19,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:17:19,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:17:19,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... [2020-11-29 18:17:19,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:17:19,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:17:19,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:17:19,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:17:19,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2020-11-29 18:17:19,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:17:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:17:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:17:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:17:19,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:17:19,533 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:17:19,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:19 BoogieIcfgContainer [2020-11-29 18:17:19,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:17:19,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:17:19,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:17:19,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:17:19,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:17:18" (1/3) ... [2020-11-29 18:17:19,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540e56ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:17:19, skipping insertion in model container [2020-11-29 18:17:19,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:18" (2/3) ... [2020-11-29 18:17:19,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540e56ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:17:19, skipping insertion in model container [2020-11-29 18:17:19,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:19" (3/3) ... [2020-11-29 18:17:19,553 INFO L111 eAbstractionObserver]: Analyzing ICFG test12.c [2020-11-29 18:17:19,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:17:19,580 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:17:19,594 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:17:19,623 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:17:19,624 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:17:19,624 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:17:19,624 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:17:19,624 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:17:19,624 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:17:19,624 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:17:19,625 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:17:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 18:17:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 18:17:19,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:19,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 18:17:19,648 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:17:19,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:19,665 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-29 18:17:19,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:19,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184271232] [2020-11-29 18:17:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:19,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:19,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:19,863 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:19,864 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:17:19,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:17:19,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:17:19 BoogieIcfgContainer [2020-11-29 18:17:19,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:17:19,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:17:19,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:17:19,897 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:17:19,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:19" (3/4) ... [2020-11-29 18:17:19,901 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:17:19,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_089d0d90-5ce3-43c4-b38c-c21bbddad45d/bin/uautomizer/witness.graphml [2020-11-29 18:17:19,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:17:19,947 INFO L168 Benchmark]: Toolchain (without parser) took 1261.10 ms. Allocated memory is still 88.1 MB. Free memory was 56.6 MB in the beginning and 37.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,948 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 88.1 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:17:19,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.40 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 65.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.40 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 64.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:17:19,951 INFO L168 Benchmark]: Boogie Preprocessor took 38.84 ms. Allocated memory is still 88.1 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,952 INFO L168 Benchmark]: RCFGBuilder took 443.56 ms. Allocated memory is still 88.1 MB. Free memory was 63.3 MB in the beginning and 52.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,953 INFO L168 Benchmark]: TraceAbstraction took 359.14 ms. Allocated memory is still 88.1 MB. Free memory was 51.8 MB in the beginning and 39.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,954 INFO L168 Benchmark]: Witness Printer took 47.24 ms. Allocated memory is still 88.1 MB. Free memory was 38.9 MB in the beginning and 37.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:19,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 88.1 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.40 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 65.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.40 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 64.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.84 ms. Allocated memory is still 88.1 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 443.56 ms. Allocated memory is still 88.1 MB. Free memory was 63.3 MB in the beginning and 52.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 359.14 ms. Allocated memory is still 88.1 MB. Free memory was 51.8 MB in the beginning and 39.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 47.24 ms. Allocated memory is still 88.1 MB. Free memory was 38.9 MB in the beginning and 37.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] int a, b; VAL [a={5:0}, b={3:0}] [L7] COND TRUE a != b VAL [a={5:0}, b={3:0}] [L3] __assert_fail("0", "test12.c", 3, "reach_error") VAL [a={5:0}, b={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...