./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a1cc7881130b406d1d951279b5fe9bb2a9beea4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:10:00,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:10:00,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:10:00,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:10:00,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:10:00,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:10:00,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:10:00,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:10:00,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:10:00,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:10:00,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:10:00,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:10:00,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:10:00,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:10:00,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:10:00,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:10:00,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:10:00,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:10:00,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:10:00,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:10:00,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:10:00,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:10:00,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:10:00,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:10:00,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:10:00,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:10:00,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:10:00,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:10:00,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:10:00,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:10:00,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:10:00,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:10:00,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:10:00,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:10:00,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:10:00,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:10:00,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:10:00,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:10:00,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:10:00,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:10:00,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:10:00,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:10:00,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:10:00,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:10:00,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:10:00,439 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:10:00,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:10:00,440 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:10:00,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:10:00,440 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:10:00,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:10:00,440 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:10:00,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:10:00,441 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:10:00,441 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:10:00,441 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:10:00,441 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:10:00,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:10:00,442 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:10:00,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:10:00,443 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:10:00,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:10:00,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:10:00,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:10:00,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:10:00,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:10:00,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:10:00,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:10:00,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:10:00,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:10:00,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:10:00,445 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:10:00,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:10:00,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:10:00,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:10:00,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:10:00,446 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a1cc7881130b406d1d951279b5fe9bb2a9beea4 [2020-12-09 06:10:00,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:10:00,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:10:00,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:10:00,640 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:10:00,640 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:10:00,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c [2020-12-09 06:10:00,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/data/9e8f5c13b/81c0b5c52d7e499babd6568348cb97ee/FLAG926af1f10 [2020-12-09 06:10:01,109 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:10:01,109 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/sv-benchmarks/c/eca-rers2012/Problem02_label34.c [2020-12-09 06:10:01,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/data/9e8f5c13b/81c0b5c52d7e499babd6568348cb97ee/FLAG926af1f10 [2020-12-09 06:10:01,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/data/9e8f5c13b/81c0b5c52d7e499babd6568348cb97ee [2020-12-09 06:10:01,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:10:01,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:10:01,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:10:01,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:10:01,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:10:01,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33210a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01, skipping insertion in model container [2020-12-09 06:10:01,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:10:01,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:10:01,384 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/sv-benchmarks/c/eca-rers2012/Problem02_label34.c[16560,16573] [2020-12-09 06:10:01,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:10:01,413 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:10:01,462 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/sv-benchmarks/c/eca-rers2012/Problem02_label34.c[16560,16573] [2020-12-09 06:10:01,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:10:01,485 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:10:01,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01 WrapperNode [2020-12-09 06:10:01,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:10:01,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:10:01,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:10:01,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:10:01,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:10:01,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:10:01,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:10:01,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:10:01,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... [2020-12-09 06:10:01,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:10:01,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:10:01,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:10:01,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:10:01,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:10:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:10:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:10:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:10:01,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:10:02,796 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:10:02,796 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 06:10:02,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:10:02 BoogieIcfgContainer [2020-12-09 06:10:02,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:10:02,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:10:02,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:10:02,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:10:02,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:10:01" (1/3) ... [2020-12-09 06:10:02,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da5cbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:10:02, skipping insertion in model container [2020-12-09 06:10:02,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:10:01" (2/3) ... [2020-12-09 06:10:02,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da5cbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:10:02, skipping insertion in model container [2020-12-09 06:10:02,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:10:02" (3/3) ... [2020-12-09 06:10:02,806 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label34.c [2020-12-09 06:10:02,819 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:10:02,822 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:10:02,828 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:10:02,844 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:10:02,845 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:10:02,845 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:10:02,845 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:10:02,845 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:10:02,845 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:10:02,845 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:10:02,845 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:10:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-12-09 06:10:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-09 06:10:02,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:02,864 INFO L422 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] [2020-12-09 06:10:02,864 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:02,868 INFO L82 PathProgramCache]: Analyzing trace with hash 925944134, now seen corresponding path program 1 times [2020-12-09 06:10:02,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:02,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813009213] [2020-12-09 06:10:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:10:03,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813009213] [2020-12-09 06:10:03,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:03,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:10:03,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959193126] [2020-12-09 06:10:03,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:03,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:03,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:03,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:03,120 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-12-09 06:10:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:03,421 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2020-12-09 06:10:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:03,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-09 06:10:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:03,434 INFO L225 Difference]: With dead ends: 251 [2020-12-09 06:10:03,435 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 06:10:03,438 INFO L677 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 [2020-12-09 06:10:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 06:10:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-12-09 06:10:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-09 06:10:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions. [2020-12-09 06:10:03,485 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80 [2020-12-09 06:10:03,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:03,486 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions. [2020-12-09 06:10:03,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2020-12-09 06:10:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-09 06:10:03,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:03,490 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-09 06:10:03,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:10:03,490 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:03,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:03,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1427753074, now seen corresponding path program 1 times [2020-12-09 06:10:03,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:03,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004671479] [2020-12-09 06:10:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:10:03,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004671479] [2020-12-09 06:10:03,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:03,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:10:03,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491927578] [2020-12-09 06:10:03,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:03,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:03,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:03,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:03,569 INFO L87 Difference]: Start difference. First operand 163 states and 313 transitions. Second operand 3 states. [2020-12-09 06:10:03,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:03,691 INFO L93 Difference]: Finished difference Result 325 states and 625 transitions. [2020-12-09 06:10:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:03,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-12-09 06:10:03,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:03,693 INFO L225 Difference]: With dead ends: 325 [2020-12-09 06:10:03,693 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 06:10:03,694 INFO L677 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 [2020-12-09 06:10:03,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 06:10:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-12-09 06:10:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-09 06:10:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 283 transitions. [2020-12-09 06:10:03,703 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 283 transitions. Word has length 91 [2020-12-09 06:10:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:03,704 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 283 transitions. [2020-12-09 06:10:03,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 283 transitions. [2020-12-09 06:10:03,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-09 06:10:03,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:03,706 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-12-09 06:10:03,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 06:10:03,706 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash 221744613, now seen corresponding path program 1 times [2020-12-09 06:10:03,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:03,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551133118] [2020-12-09 06:10:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:10:03,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551133118] [2020-12-09 06:10:03,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:03,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:10:03,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154441062] [2020-12-09 06:10:03,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:03,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:03,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:03,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:03,774 INFO L87 Difference]: Start difference. First operand 163 states and 283 transitions. Second operand 3 states. [2020-12-09 06:10:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:04,009 INFO L93 Difference]: Finished difference Result 485 states and 846 transitions. [2020-12-09 06:10:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:04,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-09 06:10:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:04,011 INFO L225 Difference]: With dead ends: 485 [2020-12-09 06:10:04,012 INFO L226 Difference]: Without dead ends: 323 [2020-12-09 06:10:04,013 INFO L677 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 [2020-12-09 06:10:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-12-09 06:10:04,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 243. [2020-12-09 06:10:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-09 06:10:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 373 transitions. [2020-12-09 06:10:04,023 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 373 transitions. Word has length 98 [2020-12-09 06:10:04,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:04,023 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 373 transitions. [2020-12-09 06:10:04,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 373 transitions. [2020-12-09 06:10:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-09 06:10:04,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:04,025 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1] [2020-12-09 06:10:04,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 06:10:04,025 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:04,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:04,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2134438530, now seen corresponding path program 1 times [2020-12-09 06:10:04,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:04,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257567274] [2020-12-09 06:10:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:10:04,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257567274] [2020-12-09 06:10:04,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:04,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:10:04,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13676365] [2020-12-09 06:10:04,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:04,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:04,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:04,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:04,066 INFO L87 Difference]: Start difference. First operand 243 states and 373 transitions. Second operand 3 states. [2020-12-09 06:10:04,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:04,251 INFO L93 Difference]: Finished difference Result 565 states and 885 transitions. [2020-12-09 06:10:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:04,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-09 06:10:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:04,253 INFO L225 Difference]: With dead ends: 565 [2020-12-09 06:10:04,253 INFO L226 Difference]: Without dead ends: 323 [2020-12-09 06:10:04,254 INFO L677 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 [2020-12-09 06:10:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-12-09 06:10:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-12-09 06:10:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-12-09 06:10:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 493 transitions. [2020-12-09 06:10:04,267 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 493 transitions. Word has length 103 [2020-12-09 06:10:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:04,267 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 493 transitions. [2020-12-09 06:10:04,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 493 transitions. [2020-12-09 06:10:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-09 06:10:04,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:04,269 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-12-09 06:10:04,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 06:10:04,269 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:04,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:04,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2118181048, now seen corresponding path program 1 times [2020-12-09 06:10:04,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:04,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628583016] [2020-12-09 06:10:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:10:04,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628583016] [2020-12-09 06:10:04,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321752225] [2020-12-09 06:10:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:10:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:04,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:10:04,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:10:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-09 06:10:04,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:10:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-09 06:10:04,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:10:04,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2020-12-09 06:10:04,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334502180] [2020-12-09 06:10:04,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:04,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:04,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:04,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 06:10:04,638 INFO L87 Difference]: Start difference. First operand 323 states and 493 transitions. Second operand 3 states. [2020-12-09 06:10:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:04,866 INFO L93 Difference]: Finished difference Result 805 states and 1246 transitions. [2020-12-09 06:10:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:04,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-09 06:10:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:04,870 INFO L225 Difference]: With dead ends: 805 [2020-12-09 06:10:04,870 INFO L226 Difference]: Without dead ends: 483 [2020-12-09 06:10:04,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 06:10:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-12-09 06:10:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 403. [2020-12-09 06:10:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-12-09 06:10:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 553 transitions. [2020-12-09 06:10:04,884 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 553 transitions. Word has length 107 [2020-12-09 06:10:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:04,884 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 553 transitions. [2020-12-09 06:10:04,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:04,884 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 553 transitions. [2020-12-09 06:10:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-09 06:10:04,886 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:04,886 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-12-09 06:10:05,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:10:05,087 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:05,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1498404310, now seen corresponding path program 1 times [2020-12-09 06:10:05,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:05,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207651730] [2020-12-09 06:10:05,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-09 06:10:05,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207651730] [2020-12-09 06:10:05,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:05,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:10:05,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382258993] [2020-12-09 06:10:05,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:05,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:05,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:05,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:05,136 INFO L87 Difference]: Start difference. First operand 403 states and 553 transitions. Second operand 3 states. [2020-12-09 06:10:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:05,359 INFO L93 Difference]: Finished difference Result 1045 states and 1420 transitions. [2020-12-09 06:10:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:05,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-12-09 06:10:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:05,362 INFO L225 Difference]: With dead ends: 1045 [2020-12-09 06:10:05,362 INFO L226 Difference]: Without dead ends: 563 [2020-12-09 06:10:05,363 INFO L677 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 [2020-12-09 06:10:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-12-09 06:10:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2020-12-09 06:10:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-12-09 06:10:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 676 transitions. [2020-12-09 06:10:05,385 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 676 transitions. Word has length 121 [2020-12-09 06:10:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:05,385 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 676 transitions. [2020-12-09 06:10:05,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 676 transitions. [2020-12-09 06:10:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-09 06:10:05,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:10:05,388 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-09 06:10:05,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 06:10:05,388 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:10:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:10:05,388 INFO L82 PathProgramCache]: Analyzing trace with hash -208796167, now seen corresponding path program 1 times [2020-12-09 06:10:05,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:10:05,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60942143] [2020-12-09 06:10:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:10:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:10:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-12-09 06:10:05,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60942143] [2020-12-09 06:10:05,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:10:05,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:10:05,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776560837] [2020-12-09 06:10:05,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:10:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:10:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:10:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:10:05,456 INFO L87 Difference]: Start difference. First operand 563 states and 676 transitions. Second operand 3 states. [2020-12-09 06:10:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:10:05,647 INFO L93 Difference]: Finished difference Result 1443 states and 1706 transitions. [2020-12-09 06:10:05,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:10:05,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-12-09 06:10:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:10:05,647 INFO L225 Difference]: With dead ends: 1443 [2020-12-09 06:10:05,647 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:10:05,648 INFO L677 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 [2020-12-09 06:10:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:10:05,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:10:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:10:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:10:05,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2020-12-09 06:10:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:10:05,649 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:10:05,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:10:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:10:05,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:10:05,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 06:10:05,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-12-09 06:10:05,747 INFO L262 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-12-09 06:10:05,748 INFO L262 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 476) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-12-09 06:10:05,749 INFO L262 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L258 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 10)) (.cse3 (<= 8 ~a17~0)) (.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and (<= ~a28~0 7) .cse1) (and (<= 10 ~a28~0) .cse1 .cse2) (and (= ~a19~0 1) .cse3 .cse0 .cse1))) [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L265 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-12-09 06:10:05,750 INFO L262 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L258 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 10)) (.cse3 (<= 8 ~a17~0)) (.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and (<= ~a28~0 7) .cse1) (and (<= 10 ~a28~0) .cse1 .cse2) (and (= ~a19~0 1) .cse3 .cse0 .cse1))) [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-12-09 06:10:05,751 INFO L262 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-12-09 06:10:05,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:10:05 BoogieIcfgContainer [2020-12-09 06:10:05,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:10:05,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:10:05,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:10:05,765 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:10:05,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:10:02" (3/4) ... [2020-12-09 06:10:05,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:10:05,784 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 113 nodes and edges [2020-12-09 06:10:05,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-12-09 06:10:05,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-09 06:10:05,787 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 06:10:05,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fe63c52-8176-4961-8829-056574035083/bin/utaipan/witness.graphml [2020-12-09 06:10:05,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:10:05,888 INFO L168 Benchmark]: Toolchain (without parser) took 4751.03 ms. Allocated memory was 127.9 MB in the beginning and 232.8 MB in the end (delta: 104.9 MB). Free memory was 105.2 MB in the beginning and 197.9 MB in the end (delta: -92.7 MB). Peak memory consumption was 144.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,889 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:10:05,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.89 ms. Allocated memory is still 127.9 MB. Free memory was 105.0 MB in the beginning and 79.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.81 ms. Allocated memory is still 127.9 MB. Free memory was 79.3 MB in the beginning and 74.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,890 INFO L168 Benchmark]: Boogie Preprocessor took 44.10 ms. Allocated memory is still 127.9 MB. Free memory was 74.0 MB in the beginning and 69.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,890 INFO L168 Benchmark]: RCFGBuilder took 1215.86 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 69.5 MB in the beginning and 93.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,890 INFO L168 Benchmark]: TraceAbstraction took 2964.66 ms. Allocated memory was 159.4 MB in the beginning and 232.8 MB in the end (delta: 73.4 MB). Free memory was 92.3 MB in the beginning and 81.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,891 INFO L168 Benchmark]: Witness Printer took 122.06 ms. Allocated memory is still 232.8 MB. Free memory was 81.9 MB in the beginning and 197.9 MB in the end (delta: -116.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:10:05,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.89 ms. Allocated memory is still 127.9 MB. Free memory was 105.0 MB in the beginning and 79.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.81 ms. Allocated memory is still 127.9 MB. Free memory was 79.3 MB in the beginning and 74.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.10 ms. Allocated memory is still 127.9 MB. Free memory was 74.0 MB in the beginning and 69.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1215.86 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 69.5 MB in the beginning and 93.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2964.66 ms. Allocated memory was 159.4 MB in the beginning and 232.8 MB in the end (delta: 73.4 MB). Free memory was 92.3 MB in the beginning and 81.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. * Witness Printer took 122.06 ms. Allocated memory is still 232.8 MB. Free memory was 81.9 MB in the beginning and 197.9 MB in the end (delta: -116.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 476]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((a25 == 1 && a17 <= 8) && a28 <= 10) || ((8 <= a17 && a17 <= 8) && a28 <= 10)) || (a28 <= 7 && a17 <= 8)) || ((10 <= a28 && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((a25 == 1 && a17 <= 8) && a28 <= 10) || ((8 <= a17 && a17 <= 8) && a28 <= 10)) || (a28 <= 7 && a17 <= 8)) || ((10 <= a28 && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 353 SDtfs, 497 SDslu, 34 SDs, 0 SdLazy, 1400 SolverSat, 420 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=563occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 160 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 103 HoareAnnotationTreeSize, 3 FomulaSimplifications, 376 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 959 ConstructedInterpolants, 0 QuantifiedInterpolants, 345229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 266 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 344/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...