./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46206f7a86b26e5772618ef155399955c07418b5 ..................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:46:20,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:46:20,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:46:20,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:46:20,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:46:20,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:46:20,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:46:20,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:46:20,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:46:20,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:46:20,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:46:20,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:46:20,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:46:20,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:46:20,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:46:20,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:46:20,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:46:20,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:46:20,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:46:20,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:46:20,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:46:20,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:46:20,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:46:20,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:46:20,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:46:20,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:46:20,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:46:20,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:46:20,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:46:20,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:46:20,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:46:20,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:46:20,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:46:20,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:46:20,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:46:20,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:46:20,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:46:20,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:46:20,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:46:20,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:46:20,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:46:20,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 10:46:20,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:46:20,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:46:20,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:46:20,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:46:20,239 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:46:20,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:46:20,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:46:20,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:46:20,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:46:20,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:46:20,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:46:20,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:46:20,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:46:20,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:46:20,242 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_ef55045c-36a2-4edc-828d-934a591c9e9c/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46206f7a86b26e5772618ef155399955c07418b5 [2019-12-07 10:46:20,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:46:20,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:46:20,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:46:20,357 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:46:20,357 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:46:20,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c [2019-12-07 10:46:20,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/data/35d6c5bf7/7d72925eb9ca4d06b21ac0adecfe0366/FLAGd99f5f9ab [2019-12-07 10:46:20,713 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:46:20,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c [2019-12-07 10:46:20,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/data/35d6c5bf7/7d72925eb9ca4d06b21ac0adecfe0366/FLAGd99f5f9ab [2019-12-07 10:46:20,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/data/35d6c5bf7/7d72925eb9ca4d06b21ac0adecfe0366 [2019-12-07 10:46:20,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:46:20,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:46:20,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:46:20,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:46:20,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:46:20,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b41abc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20, skipping insertion in model container [2019-12-07 10:46:20,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:46:20,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:46:20,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:46:20,845 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:46:20,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:46:20,900 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:46:20,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20 WrapperNode [2019-12-07 10:46:20,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:46:20,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:46:20,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:46:20,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:46:20,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:46:20,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:46:20,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:46:20,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:46:20,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... [2019-12-07 10:46:20,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:46:20,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:46:20,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:46:20,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:46:20,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/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 [2019-12-07 10:46:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:46:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:46:21,075 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:46:21,076 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 10:46:21,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:46:21 BoogieIcfgContainer [2019-12-07 10:46:21,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:46:21,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:46:21,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:46:21,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:46:21,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:46:20" (1/3) ... [2019-12-07 10:46:21,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c10514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:46:21, skipping insertion in model container [2019-12-07 10:46:21,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:46:20" (2/3) ... [2019-12-07 10:46:21,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c10514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:46:21, skipping insertion in model container [2019-12-07 10:46:21,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:46:21" (3/3) ... [2019-12-07 10:46:21,081 INFO L109 eAbstractionObserver]: Analyzing ICFG Toulouse-BranchesToLoop-1.c [2019-12-07 10:46:21,088 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:46:21,092 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 10:46:21,099 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 10:46:21,113 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:46:21,113 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:46:21,113 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:46:21,113 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:46:21,114 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:46:21,114 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:46:21,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:46:21,114 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:46:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 10:46:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:46:21,126 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:46:21,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:46:21,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:46:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:46:21,131 INFO L82 PathProgramCache]: Analyzing trace with hash 957637, now seen corresponding path program 1 times [2019-12-07 10:46:21,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:46:21,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019408531] [2019-12-07 10:46:21,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:46:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:46:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:46:21,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019408531] [2019-12-07 10:46:21,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:46:21,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:46:21,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217497994] [2019-12-07 10:46:21,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:46:21,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:46:21,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:46:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:46:21,253 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-12-07 10:46:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:46:21,294 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-12-07 10:46:21,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:46:21,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 10:46:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:46:21,301 INFO L225 Difference]: With dead ends: 19 [2019-12-07 10:46:21,301 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 10:46:21,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:46:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 10:46:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 10:46:21,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 10:46:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 10:46:21,323 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-12-07 10:46:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:46:21,323 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 10:46:21,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:46:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 10:46:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:46:21,323 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:46:21,324 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:46:21,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:46:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:46:21,324 INFO L82 PathProgramCache]: Analyzing trace with hash 29686796, now seen corresponding path program 1 times [2019-12-07 10:46:21,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:46:21,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916737414] [2019-12-07 10:46:21,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:46:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:46:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:46:21,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916737414] [2019-12-07 10:46:21,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:46:21,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:46:21,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728998537] [2019-12-07 10:46:21,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:46:21,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:46:21,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:46:21,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:46:21,349 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2019-12-07 10:46:21,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:46:21,375 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-07 10:46:21,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:46:21,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 10:46:21,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:46:21,376 INFO L225 Difference]: With dead ends: 14 [2019-12-07 10:46:21,376 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 10:46:21,377 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:46:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 10:46:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 10:46:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 10:46:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-12-07 10:46:21,380 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2019-12-07 10:46:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:46:21,380 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-07 10:46:21,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:46:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-07 10:46:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:46:21,381 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:46:21,381 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:46:21,381 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:46:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:46:21,382 INFO L82 PathProgramCache]: Analyzing trace with hash 29746378, now seen corresponding path program 1 times [2019-12-07 10:46:21,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:46:21,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356998919] [2019-12-07 10:46:21,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:46:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:46:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:46:21,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:46:21,406 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:46:21,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:46:21 BoogieIcfgContainer [2019-12-07 10:46:21,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:46:21,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:46:21,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:46:21,417 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:46:21,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:46:21" (3/4) ... [2019-12-07 10:46:21,419 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:46:21,444 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef55045c-36a2-4edc-828d-934a591c9e9c/bin/uautomizer/witness.graphml [2019-12-07 10:46:21,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:46:21,445 INFO L168 Benchmark]: Toolchain (without parser) took 716.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -81.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,445 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:46:21,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:46:21,447 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,447 INFO L168 Benchmark]: RCFGBuilder took 141.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,447 INFO L168 Benchmark]: TraceAbstraction took 339.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,448 INFO L168 Benchmark]: Witness Printer took 26.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:46:21,450 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * Witness Printer took 26.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 [L24] COND TRUE y<100 && z<100 [L25] y+x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 24 SDslu, 3 SDs, 0 SdLazy, 31 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...