./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0 --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 d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:58:52,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:58:52,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:58:52,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:58:52,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:58:52,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:58:52,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:58:52,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:58:52,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:58:52,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:58:52,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:58:52,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:58:52,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:58:52,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:58:52,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:58:52,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:58:52,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:58:52,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:58:52,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:58:52,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:58:52,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:58:52,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:58:52,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:58:52,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:58:52,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:58:52,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:58:52,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:58:52,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:58:52,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:58:52,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:58:52,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:58:52,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:58:52,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:58:52,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:58:52,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:58:52,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:58:52,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:58:52,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:58:52,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:58:52,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:58:52,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:58:52,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:58:52,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:58:52,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:58:52,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:58:52,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:58:52,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:58:52,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:58:52,265 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:58:52,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:58:52,265 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:58:52,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:58:52,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:58:52,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:58:52,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:58:52,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:58:52,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:58:52,269 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:58:52,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:58:52,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:58:52,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:58:52,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:58:52,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:58:52,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:58:52,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:58:52,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:58:52,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:58:52,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:58:52,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:58:52,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:58:52,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:58:52,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:58:52,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:58:52,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:58:52,276 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_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 [2021-11-22 14:58:52,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:58:52,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:58:52,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:58:52,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:58:52,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:58:52,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-11-22 14:58:52,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/data/de0c7937e/3dc0ff6f3a64480aafb28f8d6d2cab41/FLAGcdb54b2d1 [2021-11-22 14:58:53,474 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:58:53,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-11-22 14:58:53,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/data/de0c7937e/3dc0ff6f3a64480aafb28f8d6d2cab41/FLAGcdb54b2d1 [2021-11-22 14:58:53,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/data/de0c7937e/3dc0ff6f3a64480aafb28f8d6d2cab41 [2021-11-22 14:58:53,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:58:53,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:58:53,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:58:53,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:58:53,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:58:53,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:58:53" (1/1) ... [2021-11-22 14:58:53,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb98e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:53, skipping insertion in model container [2021-11-22 14:58:53,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:58:53" (1/1) ... [2021-11-22 14:58:53,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:58:53,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:58:54,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2021-11-22 14:58:54,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:58:54,146 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:58:54,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2021-11-22 14:58:54,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:58:54,187 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:58:54,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54 WrapperNode [2021-11-22 14:58:54,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:58:54,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:58:54,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:58:54,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:58:54,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,236 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-22 14:58:54,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:58:54,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:58:54,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:58:54,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:58:54,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:58:54,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:58:54,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:58:54,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:58:54,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (1/1) ... [2021-11-22 14:58:54,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:58:54,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:58:54,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:58:54,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:58:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:58:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:58:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:58:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:58:54,472 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:58:54,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:58:54,584 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:58:54,590 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:58:54,590 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:58:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:54 BoogieIcfgContainer [2021-11-22 14:58:54,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:58:54,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:58:54,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:58:54,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:58:54,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:58:53" (1/3) ... [2021-11-22 14:58:54,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e99986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:58:54, skipping insertion in model container [2021-11-22 14:58:54,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:58:54" (2/3) ... [2021-11-22 14:58:54,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e99986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:58:54, skipping insertion in model container [2021-11-22 14:58:54,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:54" (3/3) ... [2021-11-22 14:58:54,608 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2021-11-22 14:58:54,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:58:54,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:58:54,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:58:54,690 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:58:54,690 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:58:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 14:58:54,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:54,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:54,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1807089480, now seen corresponding path program 1 times [2021-11-22 14:58:54,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:58:54,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570303417] [2021-11-22 14:58:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:54,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:58:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:54,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:58:54,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570303417] [2021-11-22 14:58:54,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570303417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:58:54,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:58:54,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:58:54,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920453162] [2021-11-22 14:58:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:58:54,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:58:54,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:58:54,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:58:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:58:54,954 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:58:54,972 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-11-22 14:58:54,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:58:54,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 14:58:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:58:54,984 INFO L225 Difference]: With dead ends: 20 [2021-11-22 14:58:54,985 INFO L226 Difference]: Without dead ends: 8 [2021-11-22 14:58:54,988 INFO L932 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 [2021-11-22 14:58:54,995 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:58:54,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:58:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-22 14:58:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-22 14:58:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-22 14:58:55,041 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2021-11-22 14:58:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:58:55,042 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-22 14:58:55,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-22 14:58:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 14:58:55,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:55,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:55,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:58:55,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:55,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970316, now seen corresponding path program 1 times [2021-11-22 14:58:55,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:58:55,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120574708] [2021-11-22 14:58:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:55,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:58:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:55,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:58:55,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120574708] [2021-11-22 14:58:55,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120574708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:58:55,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:58:55,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:58:55,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472953576] [2021-11-22 14:58:55,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:58:55,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:58:55,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:58:55,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:58:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:58:55,178 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:55,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:58:55,205 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-22 14:58:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:58:55,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 14:58:55,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:58:55,207 INFO L225 Difference]: With dead ends: 13 [2021-11-22 14:58:55,207 INFO L226 Difference]: Without dead ends: 9 [2021-11-22 14:58:55,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:58:55,210 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:58:55,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:58:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-22 14:58:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-22 14:58:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-22 14:58:55,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-11-22 14:58:55,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:58:55,230 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-22 14:58:55,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-22 14:58:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 14:58:55,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:55,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:55,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:58:55,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:55,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash 183170324, now seen corresponding path program 1 times [2021-11-22 14:58:55,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:58:55,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275063298] [2021-11-22 14:58:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:55,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:58:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:55,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:58:55,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275063298] [2021-11-22 14:58:55,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275063298] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:58:55,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262112480] [2021-11-22 14:58:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:55,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:58:55,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:58:55,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:58:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:58:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:55,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 14:58:55,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:58:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:56,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:58:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:56,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262112480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:58:56,438 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:58:56,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-22 14:58:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97775063] [2021-11-22 14:58:56,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:58:56,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 14:58:56,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:58:56,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 14:58:56,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:58:56,450 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:58:56,577 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-11-22 14:58:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:58:56,578 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-22 14:58:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:58:56,579 INFO L225 Difference]: With dead ends: 14 [2021-11-22 14:58:56,579 INFO L226 Difference]: Without dead ends: 10 [2021-11-22 14:58:56,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:58:56,582 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:58:56,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:58:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-22 14:58:56,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-22 14:58:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-22 14:58:56,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-11-22 14:58:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:58:56,588 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-22 14:58:56,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-22 14:58:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 14:58:56,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:56,590 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:56,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:58:56,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:58:56,806 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1384978124, now seen corresponding path program 2 times [2021-11-22 14:58:56,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:58:56,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876745908] [2021-11-22 14:58:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:56,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:58:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:56,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:58:56,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876745908] [2021-11-22 14:58:56,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876745908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:58:56,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822312488] [2021-11-22 14:58:56,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:58:56,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:58:56,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:58:56,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:58:57,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:58:57,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:58:57,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:58:57,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 14:58:57,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:58:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:57,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:58:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:58:57,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822312488] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:58:57,663 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:58:57,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-11-22 14:58:57,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338041866] [2021-11-22 14:58:57,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:58:57,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 14:58:57,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:58:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 14:58:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:58:57,667 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:58:58,005 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-22 14:58:58,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:58:58,005 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 14:58:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:58:58,006 INFO L225 Difference]: With dead ends: 13 [2021-11-22 14:58:58,006 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:58:58,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2021-11-22 14:58:58,009 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:58:58,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:58:58,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:58:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:58:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:58:58,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-22 14:58:58,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:58:58,012 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:58:58,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:58:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:58:58,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:58:58,018 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:58:58,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:58:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:58:58,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 14:58:58,283 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 14:58:58,283 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-22 14:58:58,284 INFO L861 garLoopResultBuilder]: At program point L36(lines 24 37) the Hoare annotation is: true [2021-11-22 14:58:58,284 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 14:58:58,285 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 14:58:58,285 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 14:58:58,285 INFO L858 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-11-22 14:58:58,286 INFO L854 garLoopResultBuilder]: At program point L30-2(lines 30 34) the Hoare annotation is: (let ((.cse0 (+ (* 2 |ULTIMATE.start_main_~mid~0#1|) |ULTIMATE.start_main_~lo~0#1|))) (and (<= .cse0 |ULTIMATE.start_main_~hi~0#1|) (<= |ULTIMATE.start_main_~lo~0#1| |ULTIMATE.start_main_~hi~0#1|) (<= |ULTIMATE.start_main_~hi~0#1| .cse0))) [2021-11-22 14:58:58,286 INFO L858 garLoopResultBuilder]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2021-11-22 14:58:58,286 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-22 14:58:58,287 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-11-22 14:58:58,289 INFO L861 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-11-22 14:58:58,297 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-22 14:58:58,300 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:58:58,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:58:58 BoogieIcfgContainer [2021-11-22 14:58:58,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:58:58,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:58:58,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:58:58,323 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:58:58,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:54" (3/4) ... [2021-11-22 14:58:58,329 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 14:58:58,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-22 14:58:58,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-22 14:58:58,346 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 14:58:58,346 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 14:58:58,385 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:58:58,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:58:58,386 INFO L158 Benchmark]: Toolchain (without parser) took 4550.86ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 69.1MB in the beginning and 79.3MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,387 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 63.2MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:58:58,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.74ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 78.9MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.64ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,388 INFO L158 Benchmark]: Boogie Preprocessor took 46.61ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,389 INFO L158 Benchmark]: RCFGBuilder took 308.42ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 67.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,389 INFO L158 Benchmark]: TraceAbstraction took 3724.81ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.5MB in the beginning and 81.5MB in the end (delta: -14.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-22 14:58:58,390 INFO L158 Benchmark]: Witness Printer took 63.47ms. Allocated memory is still 123.7MB. Free memory was 81.5MB in the beginning and 79.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:58:58,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 63.2MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.74ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 78.9MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.64ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.61ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.42ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 67.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3724.81ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.5MB in the beginning and 81.5MB in the end (delta: -14.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 63.47ms. Allocated memory is still 123.7MB. Free memory was 81.5MB in the beginning and 79.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 28 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 10 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (2 * mid + lo <= hi && lo <= hi) && hi <= 2 * mid + lo - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 14:58:58,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27031f19-fc64-46f1-b94b-108b53a65aab/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE