./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD --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 f3d87cda29c87bf57e92aba668210746c81813e12063a67a43996181b640be8a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:44:56,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:44:56,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:44:56,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:44:56,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:44:56,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:44:56,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:44:56,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:44:56,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:44:56,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:44:56,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:44:56,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:44:56,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:44:56,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:44:56,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:44:56,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:44:56,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:44:56,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:44:56,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:44:56,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:44:56,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:44:56,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:44:56,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:44:56,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:44:56,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:44:56,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:44:56,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:44:56,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:44:56,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:44:56,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:44:56,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:44:56,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:44:56,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:44:56,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:44:56,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:44:56,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:44:56,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:44:56,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:44:56,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:44:56,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:44:56,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:44:56,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:44:56,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:44:56,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:44:56,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:44:56,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:44:56,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:44:56,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:44:56,302 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:44:56,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:44:56,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:44:56,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:44:56,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:44:56,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:44:56,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:44:56,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:44:56,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:44:56,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:44:56,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:44:56,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:44:56,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:44:56,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:44:56,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:44:56,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:44:56,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:44:56,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:44:56,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:44:56,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:44:56,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:44:56,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:44:56,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:44:56,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:44:56,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:44:56,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:44:56,314 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_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3d87cda29c87bf57e92aba668210746c81813e12063a67a43996181b640be8a [2021-10-28 23:44:56,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:44:56,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:44:56,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:44:56,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:44:56,738 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:44:56,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2021-10-28 23:44:56,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/data/58b9cdc94/df275f310aff4b4c8a8af396bbcb87ad/FLAG3b938ecd1 [2021-10-28 23:44:57,498 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:44:57,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2021-10-28 23:44:57,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/data/58b9cdc94/df275f310aff4b4c8a8af396bbcb87ad/FLAG3b938ecd1 [2021-10-28 23:44:57,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/data/58b9cdc94/df275f310aff4b4c8a8af396bbcb87ad [2021-10-28 23:44:57,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:44:57,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:44:57,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:44:57,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:44:57,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:44:57,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:44:57" (1/1) ... [2021-10-28 23:44:57,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbd9f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:57, skipping insertion in model container [2021-10-28 23:44:57,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:44:57" (1/1) ... [2021-10-28 23:44:57,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:44:57,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:44:58,802 WARN L228 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_756edcde-a95a-46ca-9339-8ecde85da7fb/sv-benchmarks/c/eca-rers2012/Problem01_label04.c[17486,17499] [2021-10-28 23:44:58,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:44:58,920 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:44:59,125 WARN L228 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_756edcde-a95a-46ca-9339-8ecde85da7fb/sv-benchmarks/c/eca-rers2012/Problem01_label04.c[17486,17499] [2021-10-28 23:44:59,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:44:59,216 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:44:59,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59 WrapperNode [2021-10-28 23:44:59,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:44:59,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:44:59,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:44:59,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:44:59,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:44:59,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:44:59,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:44:59,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:44:59,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:44:59,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:44:59,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:44:59,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:44:59,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (1/1) ... [2021-10-28 23:44:59,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:44:59,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:59,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:59,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:44:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:44:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:44:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:44:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:45:01,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:45:01,018 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:45:01,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:01 BoogieIcfgContainer [2021-10-28 23:45:01,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:45:01,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:45:01,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:45:01,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:45:01,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:44:57" (1/3) ... [2021-10-28 23:45:01,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416fdf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:01, skipping insertion in model container [2021-10-28 23:45:01,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:44:59" (2/3) ... [2021-10-28 23:45:01,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416fdf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:01, skipping insertion in model container [2021-10-28 23:45:01,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:01" (3/3) ... [2021-10-28 23:45:01,030 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label04.c [2021-10-28 23:45:01,036 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:45:01,036 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:45:01,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:45:01,101 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 [2021-10-28 23:45:01,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:45:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) [2021-10-28 23:45:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-28 23:45:01,160 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:01,161 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:01,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:01,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash 857742575, now seen corresponding path program 1 times [2021-10-28 23:45:01,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:01,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858328004] [2021-10-28 23:45:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:01,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:01,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:01,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858328004] [2021-10-28 23:45:01,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858328004] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:01,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:01,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:45:01,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936867270] [2021-10-28 23:45:01,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:01,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:01,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:01,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:01,745 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-10-28 23:45:02,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:02,641 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-10-28 23:45:02,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:02,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2021-10-28 23:45:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:02,672 INFO L225 Difference]: With dead ends: 528 [2021-10-28 23:45:02,673 INFO L226 Difference]: Without dead ends: 266 [2021-10-28 23:45:02,682 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:02,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-28 23:45:02,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-28 23:45:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 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) [2021-10-28 23:45:02,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-10-28 23:45:02,781 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 96 [2021-10-28 23:45:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:02,784 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-10-28 23:45:02,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-10-28 23:45:02,785 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-10-28 23:45:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-10-28 23:45:02,798 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:02,799 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:02,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:45:02,800 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:02,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2104593095, now seen corresponding path program 1 times [2021-10-28 23:45:02,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:02,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672200466] [2021-10-28 23:45:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:02,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:02,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:02,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672200466] [2021-10-28 23:45:02,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672200466] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:02,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:02,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:45:02,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498577668] [2021-10-28 23:45:02,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:02,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:02,877 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-10-28 23:45:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:03,390 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-10-28 23:45:03,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:03,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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 101 [2021-10-28 23:45:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:03,395 INFO L225 Difference]: With dead ends: 792 [2021-10-28 23:45:03,396 INFO L226 Difference]: Without dead ends: 528 [2021-10-28 23:45:03,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-10-28 23:45:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-10-28 23:45:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 527 states have internal predecessors, (721), 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) [2021-10-28 23:45:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 721 transitions. [2021-10-28 23:45:03,434 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 721 transitions. Word has length 101 [2021-10-28 23:45:03,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:03,435 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 721 transitions. [2021-10-28 23:45:03,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-10-28 23:45:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 721 transitions. [2021-10-28 23:45:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-28 23:45:03,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:03,439 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:03,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:45:03,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1234609091, now seen corresponding path program 1 times [2021-10-28 23:45:03,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:03,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515420558] [2021-10-28 23:45:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:03,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:03,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:03,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515420558] [2021-10-28 23:45:03,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515420558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:03,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:03,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:45:03,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800922975] [2021-10-28 23:45:03,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:03,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:03,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:03,566 INFO L87 Difference]: Start difference. First operand 528 states and 721 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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) [2021-10-28 23:45:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:04,128 INFO L93 Difference]: Finished difference Result 1447 states and 1979 transitions. [2021-10-28 23:45:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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 105 [2021-10-28 23:45:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:04,134 INFO L225 Difference]: With dead ends: 1447 [2021-10-28 23:45:04,135 INFO L226 Difference]: Without dead ends: 921 [2021-10-28 23:45:04,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:04,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-10-28 23:45:04,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-10-28 23:45:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3413043478260869) internal successors, (1234), 920 states have internal predecessors, (1234), 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) [2021-10-28 23:45:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1234 transitions. [2021-10-28 23:45:04,167 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1234 transitions. Word has length 105 [2021-10-28 23:45:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:04,169 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1234 transitions. [2021-10-28 23:45:04,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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) [2021-10-28 23:45:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1234 transitions. [2021-10-28 23:45:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-28 23:45:04,177 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:04,178 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:04,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:45:04,178 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1833249902, now seen corresponding path program 1 times [2021-10-28 23:45:04,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:04,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762206291] [2021-10-28 23:45:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:04,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:04,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:04,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762206291] [2021-10-28 23:45:04,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762206291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:04,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:04,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:45:04,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012851304] [2021-10-28 23:45:04,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:04,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:04,313 INFO L87 Difference]: Start difference. First operand 921 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2021-10-28 23:45:04,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:04,838 INFO L93 Difference]: Finished difference Result 2233 states and 2955 transitions. [2021-10-28 23:45:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:04,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2021-10-28 23:45:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:04,848 INFO L225 Difference]: With dead ends: 2233 [2021-10-28 23:45:04,848 INFO L226 Difference]: Without dead ends: 1314 [2021-10-28 23:45:04,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-10-28 23:45:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2021-10-28 23:45:04,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2961082910321489) internal successors, (1532), 1182 states have internal predecessors, (1532), 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) [2021-10-28 23:45:04,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1532 transitions. [2021-10-28 23:45:04,897 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1532 transitions. Word has length 111 [2021-10-28 23:45:04,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:04,898 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1532 transitions. [2021-10-28 23:45:04,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2021-10-28 23:45:04,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1532 transitions. [2021-10-28 23:45:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 23:45:04,902 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:04,903 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:04,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:45:04,903 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1776099934, now seen corresponding path program 1 times [2021-10-28 23:45:04,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:04,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392733762] [2021-10-28 23:45:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:04,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:45:04,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:04,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392733762] [2021-10-28 23:45:04,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392733762] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:04,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:04,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:45:04,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573503794] [2021-10-28 23:45:04,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:04,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:04,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:04,998 INFO L87 Difference]: Start difference. First operand 1183 states and 1532 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2021-10-28 23:45:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:05,452 INFO L93 Difference]: Finished difference Result 2364 states and 3062 transitions. [2021-10-28 23:45:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:05,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 112 [2021-10-28 23:45:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:05,460 INFO L225 Difference]: With dead ends: 2364 [2021-10-28 23:45:05,461 INFO L226 Difference]: Without dead ends: 1183 [2021-10-28 23:45:05,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-10-28 23:45:05,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-10-28 23:45:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2808798646362098) internal successors, (1514), 1182 states have internal predecessors, (1514), 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) [2021-10-28 23:45:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1514 transitions. [2021-10-28 23:45:05,532 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1514 transitions. Word has length 112 [2021-10-28 23:45:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:05,532 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1514 transitions. [2021-10-28 23:45:05,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2021-10-28 23:45:05,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1514 transitions. [2021-10-28 23:45:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-28 23:45:05,537 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:05,537 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:05,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:45:05,538 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash -793034954, now seen corresponding path program 1 times [2021-10-28 23:45:05,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:05,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556216803] [2021-10-28 23:45:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:05,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:05,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:05,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556216803] [2021-10-28 23:45:05,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556216803] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:05,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:05,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:45:05,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844550497] [2021-10-28 23:45:05,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:45:05,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:45:05,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:45:05,645 INFO L87 Difference]: Start difference. First operand 1183 states and 1514 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-10-28 23:45:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:06,348 INFO L93 Difference]: Finished difference Result 2757 states and 3467 transitions. [2021-10-28 23:45:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:45:06,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2021-10-28 23:45:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:06,358 INFO L225 Difference]: With dead ends: 2757 [2021-10-28 23:45:06,358 INFO L226 Difference]: Without dead ends: 1576 [2021-10-28 23:45:06,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:45:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-10-28 23:45:06,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-10-28 23:45:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2465373961218837) internal successors, (1800), 1444 states have internal predecessors, (1800), 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) [2021-10-28 23:45:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1800 transitions. [2021-10-28 23:45:06,405 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1800 transitions. Word has length 115 [2021-10-28 23:45:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:06,406 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1800 transitions. [2021-10-28 23:45:06,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-10-28 23:45:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1800 transitions. [2021-10-28 23:45:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-28 23:45:06,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:06,410 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:06,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:45:06,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:06,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:06,411 INFO L85 PathProgramCache]: Analyzing trace with hash -117909897, now seen corresponding path program 1 times [2021-10-28 23:45:06,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:06,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604800441] [2021-10-28 23:45:06,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:06,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:06,631 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:06,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:06,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604800441] [2021-10-28 23:45:06,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604800441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:06,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029319335] [2021-10-28 23:45:06,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:06,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:06,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:06,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:45:06,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:45:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:06,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:45:06,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-28 23:45:07,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029319335] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:07,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:45:07,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-28 23:45:07,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371473825] [2021-10-28 23:45:07,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:07,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:45:07,322 INFO L87 Difference]: Start difference. First operand 1445 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2021-10-28 23:45:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:07,760 INFO L93 Difference]: Finished difference Result 2233 states and 2732 transitions. [2021-10-28 23:45:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:07,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 133 [2021-10-28 23:45:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:07,775 INFO L225 Difference]: With dead ends: 2233 [2021-10-28 23:45:07,776 INFO L226 Difference]: Without dead ends: 2231 [2021-10-28 23:45:07,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:45:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-10-28 23:45:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-10-28 23:45:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.2242152466367713) internal successors, (2730), 2230 states have internal predecessors, (2730), 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) [2021-10-28 23:45:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2730 transitions. [2021-10-28 23:45:07,840 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2730 transitions. Word has length 133 [2021-10-28 23:45:07,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:07,843 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2730 transitions. [2021-10-28 23:45:07,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2021-10-28 23:45:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2730 transitions. [2021-10-28 23:45:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-28 23:45:07,848 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:07,849 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:07,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:08,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 23:45:08,075 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:08,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash 374962628, now seen corresponding path program 1 times [2021-10-28 23:45:08,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:08,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580482890] [2021-10-28 23:45:08,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:08,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:08,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:08,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580482890] [2021-10-28 23:45:08,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580482890] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:08,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:08,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:45:08,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910953345] [2021-10-28 23:45:08,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:08,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:08,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:08,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:45:08,176 INFO L87 Difference]: Start difference. First operand 2231 states and 2730 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2021-10-28 23:45:08,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:08,657 INFO L93 Difference]: Finished difference Result 4853 states and 5941 transitions. [2021-10-28 23:45:08,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:08,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2021-10-28 23:45:08,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:08,675 INFO L225 Difference]: With dead ends: 4853 [2021-10-28 23:45:08,676 INFO L226 Difference]: Without dead ends: 2362 [2021-10-28 23:45:08,679 INFO L786 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 [2021-10-28 23:45:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-10-28 23:45:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2021-10-28 23:45:08,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.1138637446403048) internal successors, (2338), 2099 states have internal predecessors, (2338), 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) [2021-10-28 23:45:08,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2338 transitions. [2021-10-28 23:45:08,744 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2338 transitions. Word has length 140 [2021-10-28 23:45:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:08,745 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2338 transitions. [2021-10-28 23:45:08,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2021-10-28 23:45:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2338 transitions. [2021-10-28 23:45:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-28 23:45:08,781 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:08,781 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:08,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:45:08,782 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:08,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:08,783 INFO L85 PathProgramCache]: Analyzing trace with hash -834386125, now seen corresponding path program 1 times [2021-10-28 23:45:08,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:08,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21000060] [2021-10-28 23:45:08,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:08,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-28 23:45:08,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:08,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21000060] [2021-10-28 23:45:08,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21000060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:08,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376123722] [2021-10-28 23:45:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:08,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:08,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:08,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:45:08,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:45:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:09,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:45:09,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-28 23:45:09,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376123722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:09,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:45:09,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 23:45:09,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752202109] [2021-10-28 23:45:09,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:09,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:09,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:45:09,732 INFO L87 Difference]: Start difference. First operand 2100 states and 2338 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-10-28 23:45:10,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:10,184 INFO L93 Difference]: Finished difference Result 2495 states and 2787 transitions. [2021-10-28 23:45:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:10,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 175 [2021-10-28 23:45:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:10,200 INFO L225 Difference]: With dead ends: 2495 [2021-10-28 23:45:10,201 INFO L226 Difference]: Without dead ends: 2493 [2021-10-28 23:45:10,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:45:10,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-10-28 23:45:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1445. [2021-10-28 23:45:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.1101108033240996) internal successors, (1603), 1444 states have internal predecessors, (1603), 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) [2021-10-28 23:45:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1603 transitions. [2021-10-28 23:45:10,263 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1603 transitions. Word has length 175 [2021-10-28 23:45:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:10,264 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1603 transitions. [2021-10-28 23:45:10,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-10-28 23:45:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1603 transitions. [2021-10-28 23:45:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-10-28 23:45:10,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:10,270 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:10,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:10,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:10,485 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:45:10,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:10,486 INFO L85 PathProgramCache]: Analyzing trace with hash 876715263, now seen corresponding path program 1 times [2021-10-28 23:45:10,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:45:10,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792037535] [2021-10-28 23:45:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:10,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:45:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-10-28 23:45:10,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:45:10,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792037535] [2021-10-28 23:45:10,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792037535] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:45:10,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545662771] [2021-10-28 23:45:10,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:10,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:10,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:10,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:45:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:45:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:10,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:45:10,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-10-28 23:45:11,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545662771] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:11,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:45:11,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 23:45:11,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843740713] [2021-10-28 23:45:11,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:45:11,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:45:11,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:45:11,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:45:11,505 INFO L87 Difference]: Start difference. First operand 1445 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-10-28 23:45:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:12,028 INFO L93 Difference]: Finished difference Result 1445 states and 1603 transitions. [2021-10-28 23:45:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:45:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 188 [2021-10-28 23:45:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:12,030 INFO L225 Difference]: With dead ends: 1445 [2021-10-28 23:45:12,030 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:45:12,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:45:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:45:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:45:12,032 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) [2021-10-28 23:45:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:45:12,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 188 [2021-10-28 23:45:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:12,033 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:45:12,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-10-28 23:45:12,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:45:12,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:45:12,037 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:45:12,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:12,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:45:12,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:45:12,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:45:12,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:45:12,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-10-28 23:45:12,559 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,560 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-10-28 23:45:12,561 INFO L857 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,562 INFO L857 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,562 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-28 23:45:12,562 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-28 23:45:12,562 INFO L857 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-10-28 23:45:12,562 INFO L857 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-10-28 23:45:12,563 INFO L857 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-10-28 23:45:12,563 INFO L857 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-10-28 23:45:12,563 INFO L857 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-10-28 23:45:12,564 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-28 23:45:12,564 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-28 23:45:12,564 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-28 23:45:12,565 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-28 23:45:12,567 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-28 23:45:12,567 INFO L857 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,567 INFO L857 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,567 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,568 INFO L857 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,568 INFO L857 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,568 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-28 23:45:12,568 INFO L857 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,568 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-28 23:45:12,569 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-28 23:45:12,570 INFO L857 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-28 23:45:12,570 INFO L857 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-10-28 23:45:12,570 INFO L857 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-10-28 23:45:12,571 INFO L857 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-10-28 23:45:12,571 INFO L857 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-10-28 23:45:12,571 INFO L857 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-10-28 23:45:12,572 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-28 23:45:12,572 INFO L857 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-28 23:45:12,573 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-28 23:45:12,573 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-28 23:45:12,573 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-28 23:45:12,573 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-28 23:45:12,573 INFO L857 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,574 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-28 23:45:12,575 INFO L857 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-10-28 23:45:12,575 INFO L857 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-10-28 23:45:12,575 INFO L857 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-10-28 23:45:12,575 INFO L857 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-10-28 23:45:12,575 INFO L857 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-28 23:45:12,576 INFO L857 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-28 23:45:12,576 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-28 23:45:12,576 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-28 23:45:12,576 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-28 23:45:12,576 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-28 23:45:12,577 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-28 23:45:12,577 INFO L857 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,577 INFO L857 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,586 INFO L857 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,586 INFO L857 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,587 INFO L857 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,587 INFO L857 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,587 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-28 23:45:12,587 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-28 23:45:12,587 INFO L857 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-28 23:45:12,588 INFO L857 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-10-28 23:45:12,588 INFO L857 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-10-28 23:45:12,588 INFO L857 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-10-28 23:45:12,588 INFO L857 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-28 23:45:12,588 INFO L857 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-10-28 23:45:12,592 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-28 23:45:12,592 INFO L857 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-28 23:45:12,592 INFO L857 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,592 INFO L857 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,592 INFO L857 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,593 INFO L857 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,593 INFO L857 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,593 INFO L857 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,593 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-28 23:45:12,593 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-28 23:45:12,594 INFO L857 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-10-28 23:45:12,595 INFO L857 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-10-28 23:45:12,595 INFO L857 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-10-28 23:45:12,595 INFO L857 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-10-28 23:45:12,595 INFO L857 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-10-28 23:45:12,595 INFO L857 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-10-28 23:45:12,596 INFO L857 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-28 23:45:12,596 INFO L857 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-28 23:45:12,596 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-28 23:45:12,596 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-28 23:45:12,596 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-28 23:45:12,597 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-28 23:45:12,598 INFO L857 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-10-28 23:45:12,598 INFO L857 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,598 INFO L857 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,598 INFO L857 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,598 INFO L857 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,599 INFO L857 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,599 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:45:12,599 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-28 23:45:12,600 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-28 23:45:12,600 INFO L857 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-10-28 23:45:12,600 INFO L857 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-10-28 23:45:12,600 INFO L857 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-10-28 23:45:12,600 INFO L857 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-10-28 23:45:12,601 INFO L857 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-10-28 23:45:12,601 INFO L857 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-28 23:45:12,601 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-28 23:45:12,601 INFO L853 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 (<= ~a16~0 5)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (<= ~a21~0 0)) (and .cse1 .cse0 .cse2 .cse3) (and (<= ~a7~0 0) .cse0 .cse2 .cse3))) [2021-10-28 23:45:12,602 INFO L857 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,614 INFO L857 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,615 INFO L857 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,615 INFO L857 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,615 INFO L857 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,615 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-28 23:45:12,615 INFO L857 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-10-28 23:45:12,616 INFO L857 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-10-28 23:45:12,616 INFO L857 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-10-28 23:45:12,616 INFO L857 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-10-28 23:45:12,616 INFO L857 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-10-28 23:45:12,616 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-28 23:45:12,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:45:12,618 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-28 23:45:12,618 INFO L860 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-28 23:45:12,618 INFO L857 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,618 INFO L857 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,618 INFO L857 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-28 23:45:12,619 INFO L857 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-10-28 23:45:12,620 INFO L857 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-10-28 23:45:12,620 INFO L857 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-10-28 23:45:12,620 INFO L857 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-10-28 23:45:12,620 INFO L857 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-10-28 23:45:12,620 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,621 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-10-28 23:45:12,622 INFO L857 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-10-28 23:45:12,623 INFO L857 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-10-28 23:45:12,623 INFO L857 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-10-28 23:45:12,623 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-28 23:45:12,623 INFO L857 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-28 23:45:12,623 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-28 23:45:12,624 INFO L857 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-28 23:45:12,624 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-28 23:45:12,624 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-28 23:45:12,624 INFO L857 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,626 INFO L853 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a17~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 (<= ~a16~0 5)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (<= ~a21~0 0)) (and .cse1 .cse0 .cse2 .cse3) (and (<= ~a7~0 0) .cse0 .cse2 .cse3))) [2021-10-28 23:45:12,626 INFO L857 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,626 INFO L857 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 474) no Hoare annotation was computed. [2021-10-28 23:45:12,627 INFO L857 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-10-28 23:45:12,628 INFO L857 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-10-28 23:45:12,628 INFO L857 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-10-28 23:45:12,628 INFO L857 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-10-28 23:45:12,628 INFO L857 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-10-28 23:45:12,628 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-28 23:45:12,629 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-28 23:45:12,629 INFO L857 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,629 INFO L857 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,629 INFO L857 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,629 INFO L857 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,630 INFO L857 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-10-28 23:45:12,630 INFO L857 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-28 23:45:12,630 INFO L857 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-28 23:45:12,630 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-28 23:45:12,630 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-28 23:45:12,637 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:12,652 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:45:12,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:45:12 BoogieIcfgContainer [2021-10-28 23:45:12,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:45:12,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:45:12,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:45:12,692 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:45:12,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:01" (3/4) ... [2021-10-28 23:45:12,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:45:12,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 23:45:12,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:45:12,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:45:12,784 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:45:13,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:45:13,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:45:13,095 INFO L168 Benchmark]: Toolchain (without parser) took 15342.46 ms. Allocated memory was 79.7 MB in the beginning and 184.5 MB in the end (delta: 104.9 MB). Free memory was 59.8 MB in the beginning and 98.9 MB in the end (delta: -39.1 MB). Peak memory consumption was 66.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,095 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:45:13,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1458.50 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 38.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.43 ms. Allocated memory is still 79.7 MB. Free memory was 38.5 MB in the beginning and 32.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,097 INFO L168 Benchmark]: Boogie Preprocessor took 204.20 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 32.8 MB in the beginning and 97.5 MB in the end (delta: -64.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,097 INFO L168 Benchmark]: RCFGBuilder took 1384.17 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 45.1 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,098 INFO L168 Benchmark]: TraceAbstraction took 11668.14 ms. Allocated memory was 123.7 MB in the beginning and 184.5 MB in the end (delta: 60.8 MB). Free memory was 44.3 MB in the beginning and 112.6 MB in the end (delta: -68.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:45:13,098 INFO L168 Benchmark]: Witness Printer took 401.38 ms. Allocated memory is still 184.5 MB. Free memory was 112.6 MB in the beginning and 98.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:13,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1458.50 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 38.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 211.43 ms. Allocated memory is still 79.7 MB. Free memory was 38.5 MB in the beginning and 32.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 204.20 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 32.8 MB in the beginning and 97.5 MB in the end (delta: -64.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1384.17 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 45.1 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11668.14 ms. Allocated memory was 123.7 MB in the beginning and 184.5 MB in the end (delta: 60.8 MB). Free memory was 44.3 MB in the beginning and 112.6 MB in the end (delta: -68.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 401.38 ms. Allocated memory is still 184.5 MB. Free memory was 112.6 MB in the beginning and 98.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * 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: 474]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 656 SDtfs, 1183 SDslu, 57 SDs, 0 SdLazy, 3490 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 519 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2231occurred in iteration=7, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 31 NumberOfFragments, 97 HoareAnnotationTreeSize, 3 FomulaSimplifications, 920 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1772 NumberOfCodeBlocks, 1772 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1759 ConstructedInterpolants, 0 QuantifiedInterpolants, 5743 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1021 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 807/863 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: 593]: Loop Invariant Derived loop invariant: ((((a21 == 1 && a16 <= 5) || (a21 == 1 && 15 <= a8)) || (a8 <= 13 && a21 <= 0)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((a21 == 1 && a16 <= 5) || (a21 == 1 && 15 <= a8)) || (a8 <= 13 && a21 <= 0)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:45:13,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756edcde-a95a-46ca-9339-8ecde85da7fb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...