./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.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_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 373a42d768821561cf3a59e950efa4caf2842fe4 ............................................................................................................................................................................................................................................................. 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 03:33:25,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:33:25,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:33:25,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:33:25,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:33:25,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:33:25,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:33:25,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:33:25,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:33:25,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:33:25,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:33:25,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:33:25,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:33:25,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:33:25,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:33:25,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:33:25,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:33:25,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:33:25,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:33:25,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:33:25,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:33:25,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:33:25,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:33:25,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:33:25,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:33:25,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:33:25,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:33:25,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:33:25,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:33:25,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:33:25,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:33:25,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:33:25,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:33:25,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:33:25,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:33:25,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:33:25,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:33:25,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:33:25,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:33:25,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:33:25,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:33:25,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:33:25,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:33:25,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:33:25,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:33:25,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:33:25,194 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:33:25,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:33:25,194 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:33:25,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:33:25,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:33:25,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:33:25,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:33:25,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:33:25,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:33:25,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:33:25,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:33:25,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:33:25,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:33:25,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:33:25,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:33:25,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:33:25,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:33:25,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:33:25,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:33:25,198 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_a94ae187-f67f-497d-be07-6a03ad271306/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(__VERIFIER_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 -> 373a42d768821561cf3a59e950efa4caf2842fe4 [2019-11-20 03:33:25,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:33:25,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:33:25,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:33:25,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:33:25,391 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:33:25,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-1.c [2019-11-20 03:33:25,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/data/6b7ec2e60/bd86806ce942441ead073b5570176431/FLAG188cf4878 [2019-11-20 03:33:25,820 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:33:25,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/sv-benchmarks/c/loops/terminator_02-1.c [2019-11-20 03:33:25,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/data/6b7ec2e60/bd86806ce942441ead073b5570176431/FLAG188cf4878 [2019-11-20 03:33:25,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/data/6b7ec2e60/bd86806ce942441ead073b5570176431 [2019-11-20 03:33:25,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:33:25,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:33:25,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:33:25,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:33:25,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:33:25,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:33:25" (1/1) ... [2019-11-20 03:33:25,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2190a7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:25, skipping insertion in model container [2019-11-20 03:33:25,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:33:25" (1/1) ... [2019-11-20 03:33:25,858 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:33:25,873 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:33:26,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:33:26,018 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:33:26,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:33:26,134 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:33:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26 WrapperNode [2019-11-20 03:33:26,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:33:26,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:33:26,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:33:26,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:33:26,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:33:26,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:33:26,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:33:26,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:33:26,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... [2019-11-20 03:33:26,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:33:26,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:33:26,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:33:26,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:33:26,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/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 [2019-11-20 03:33:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:33:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:33:26,443 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:33:26,444 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 03:33:26,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:26 BoogieIcfgContainer [2019-11-20 03:33:26,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:33:26,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:33:26,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:33:26,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:33:26,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:33:25" (1/3) ... [2019-11-20 03:33:26,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5294a62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:33:26, skipping insertion in model container [2019-11-20 03:33:26,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:33:26" (2/3) ... [2019-11-20 03:33:26,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5294a62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:33:26, skipping insertion in model container [2019-11-20 03:33:26,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:26" (3/3) ... [2019-11-20 03:33:26,452 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2019-11-20 03:33:26,461 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:33:26,467 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 03:33:26,477 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 03:33:26,497 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:33:26,498 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:33:26,498 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:33:26,498 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:33:26,498 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:33:26,498 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:33:26,499 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:33:26,499 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:33:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 03:33:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:33:26,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:26,517 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 03:33:26,518 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:26,523 INFO L82 PathProgramCache]: Analyzing trace with hash 30108868, now seen corresponding path program 1 times [2019-11-20 03:33:26,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:26,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601781654] [2019-11-20 03:33:26,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:33:26,635 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 03:33:26,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601781654] [2019-11-20 03:33:26,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:33:26,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:33:26,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576792694] [2019-11-20 03:33:26,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:33:26,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:33:26,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:33:26,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:33:26,654 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-20 03:33:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:33:26,666 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-11-20 03:33:26,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:33:26,667 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-20 03:33:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:33:26,673 INFO L225 Difference]: With dead ends: 19 [2019-11-20 03:33:26,673 INFO L226 Difference]: Without dead ends: 7 [2019-11-20 03:33:26,675 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:33:26,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-20 03:33:26,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 03:33:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 03:33:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-11-20 03:33:26,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2019-11-20 03:33:26,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:33:26,700 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-11-20 03:33:26,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:33:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-11-20 03:33:26,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:33:26,701 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:33:26,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 03:33:26,701 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:33:26,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:33:26,702 INFO L82 PathProgramCache]: Analyzing trace with hash 29810958, now seen corresponding path program 1 times [2019-11-20 03:33:26,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:33:26,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192908860] [2019-11-20 03:33:26,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:33:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:33:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:33:26,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:33:26,737 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:33:26,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:33:26 BoogieIcfgContainer [2019-11-20 03:33:26,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:33:26,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:33:26,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:33:26,753 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:33:26,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:33:26" (3/4) ... [2019-11-20 03:33:26,756 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:33:26,789 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a94ae187-f67f-497d-be07-6a03ad271306/bin/uautomizer/witness.graphml [2019-11-20 03:33:26,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:33:26,791 INFO L168 Benchmark]: Toolchain (without parser) took 950.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:33:26,792 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:33:26,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:26,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.23 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 03:33:26,793 INFO L168 Benchmark]: Boogie Preprocessor took 18.61 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 03:33:26,794 INFO L168 Benchmark]: RCFGBuilder took 259.44 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:26,795 INFO L168 Benchmark]: TraceAbstraction took 306.55 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:33:26,795 INFO L168 Benchmark]: Witness Printer took 36.62 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 03:33:26,798 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.23 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. * Boogie Preprocessor took 18.61 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. * RCFGBuilder took 259.44 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.55 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.62 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100