./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer --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 d28fd50bd3f7e49bee026aec860ad9015a4fdfba ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:34,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:34,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:34,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:34,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:34,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:34,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:34,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:34,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:34,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:34,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:34,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:34,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:34,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:34,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:34,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:34,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:34,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:34,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:34,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:34,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:34,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:34,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:34,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:34,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:34,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:34,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:34,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:34,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:34,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:34,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:34,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:34,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:34,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:34,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:34,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:34,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:34,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:34,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:34,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:34,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:34,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:34,578 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:34,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:34,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:34,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:34,580 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:34,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:34,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:34,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:34,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:34,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:34,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:34,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:34,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:34,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:34,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:34,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:34,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:34,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:34,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:34,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:34,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:34,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:34,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:34,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:34,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:34,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:34,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:34,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:34,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:34,585 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-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28fd50bd3f7e49bee026aec860ad9015a4fdfba [2020-11-28 02:56:34,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:34,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:34,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:34,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:34,885 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:34,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/../../sv-benchmarks/c/locks/test_locks_5.c [2020-11-28 02:56:34,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/data/2dd99ead3/8f2c5704266140b1a129875e8ee62346/FLAGca234feee [2020-11-28 02:56:35,381 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:35,381 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/sv-benchmarks/c/locks/test_locks_5.c [2020-11-28 02:56:35,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/data/2dd99ead3/8f2c5704266140b1a129875e8ee62346/FLAGca234feee [2020-11-28 02:56:35,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/data/2dd99ead3/8f2c5704266140b1a129875e8ee62346 [2020-11-28 02:56:35,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:35,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:35,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:35,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:35,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:35,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:35" (1/1) ... [2020-11-28 02:56:35,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef08611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:35, skipping insertion in model container [2020-11-28 02:56:35,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:35" (1/1) ... [2020-11-28 02:56:35,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:35,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:36,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:36,054 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:36,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:36,114 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:36,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36 WrapperNode [2020-11-28 02:56:36,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:36,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:36,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:36,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:36,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:36,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:36,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:36,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:36,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... [2020-11-28 02:56:36,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:36,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:36,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:36,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:36,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:36,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:36,668 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 02:56:36,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:36 BoogieIcfgContainer [2020-11-28 02:56:36,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:36,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:36,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:36,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:36,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:35" (1/3) ... [2020-11-28 02:56:36,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1414a799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:36, skipping insertion in model container [2020-11-28 02:56:36,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:36" (2/3) ... [2020-11-28 02:56:36,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1414a799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:36, skipping insertion in model container [2020-11-28 02:56:36,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:36" (3/3) ... [2020-11-28 02:56:36,706 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-11-28 02:56:36,719 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:36,723 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:36,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:36,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:36,795 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:36,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:36,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:36,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:36,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:36,796 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:36,796 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:36,820 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-28 02:56:36,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 02:56:36,830 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:36,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:36,831 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:36,839 INFO L82 PathProgramCache]: Analyzing trace with hash -161811697, now seen corresponding path program 1 times [2020-11-28 02:56:36,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:36,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872894667] [2020-11-28 02:56:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872894667] [2020-11-28 02:56:37,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264686602] [2020-11-28 02:56:37,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,074 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-11-28 02:56:37,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,125 INFO L93 Difference]: Finished difference Result 54 states and 86 transitions. [2020-11-28 02:56:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 02:56:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,144 INFO L225 Difference]: With dead ends: 54 [2020-11-28 02:56:37,151 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 02:56:37,154 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 [2020-11-28 02:56:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 02:56:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 27. [2020-11-28 02:56:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:56:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 46 transitions. [2020-11-28 02:56:37,189 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 46 transitions. Word has length 12 [2020-11-28 02:56:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,190 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 46 transitions. [2020-11-28 02:56:37,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2020-11-28 02:56:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 02:56:37,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:37,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -971158323, now seen corresponding path program 1 times [2020-11-28 02:56:37,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269588822] [2020-11-28 02:56:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269588822] [2020-11-28 02:56:37,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295924393] [2020-11-28 02:56:37,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,269 INFO L87 Difference]: Start difference. First operand 27 states and 46 transitions. Second operand 3 states. [2020-11-28 02:56:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,311 INFO L93 Difference]: Finished difference Result 64 states and 109 transitions. [2020-11-28 02:56:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 02:56:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,313 INFO L225 Difference]: With dead ends: 64 [2020-11-28 02:56:37,313 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 02:56:37,314 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 [2020-11-28 02:56:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 02:56:37,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-11-28 02:56:37,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 02:56:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 62 transitions. [2020-11-28 02:56:37,322 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 62 transitions. Word has length 12 [2020-11-28 02:56:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,323 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 62 transitions. [2020-11-28 02:56:37,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,323 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2020-11-28 02:56:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:37,326 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:37,327 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,330 INFO L82 PathProgramCache]: Analyzing trace with hash -720980343, now seen corresponding path program 1 times [2020-11-28 02:56:37,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135293263] [2020-11-28 02:56:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135293263] [2020-11-28 02:56:37,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870128753] [2020-11-28 02:56:37,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,413 INFO L87 Difference]: Start difference. First operand 37 states and 62 transitions. Second operand 3 states. [2020-11-28 02:56:37,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,442 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2020-11-28 02:56:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 02:56:37,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,444 INFO L225 Difference]: With dead ends: 60 [2020-11-28 02:56:37,444 INFO L226 Difference]: Without dead ends: 42 [2020-11-28 02:56:37,445 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 [2020-11-28 02:56:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-28 02:56:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-11-28 02:56:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-28 02:56:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 64 transitions. [2020-11-28 02:56:37,452 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 64 transitions. Word has length 13 [2020-11-28 02:56:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,452 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 64 transitions. [2020-11-28 02:56:37,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,452 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2020-11-28 02:56:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:37,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:37,454 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,454 INFO L82 PathProgramCache]: Analyzing trace with hash -40921973, now seen corresponding path program 1 times [2020-11-28 02:56:37,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647551223] [2020-11-28 02:56:37,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647551223] [2020-11-28 02:56:37,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902229903] [2020-11-28 02:56:37,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,511 INFO L87 Difference]: Start difference. First operand 40 states and 64 transitions. Second operand 3 states. [2020-11-28 02:56:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,542 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2020-11-28 02:56:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 02:56:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,544 INFO L225 Difference]: With dead ends: 73 [2020-11-28 02:56:37,544 INFO L226 Difference]: Without dead ends: 71 [2020-11-28 02:56:37,545 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 [2020-11-28 02:56:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-28 02:56:37,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 53. [2020-11-28 02:56:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 02:56:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 85 transitions. [2020-11-28 02:56:37,556 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 85 transitions. Word has length 13 [2020-11-28 02:56:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,557 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 85 transitions. [2020-11-28 02:56:37,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2020-11-28 02:56:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:37,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:37,568 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash -850268599, now seen corresponding path program 1 times [2020-11-28 02:56:37,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237342272] [2020-11-28 02:56:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237342272] [2020-11-28 02:56:37,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647481788] [2020-11-28 02:56:37,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,616 INFO L87 Difference]: Start difference. First operand 53 states and 85 transitions. Second operand 3 states. [2020-11-28 02:56:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,640 INFO L93 Difference]: Finished difference Result 121 states and 195 transitions. [2020-11-28 02:56:37,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 02:56:37,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,646 INFO L225 Difference]: With dead ends: 121 [2020-11-28 02:56:37,646 INFO L226 Difference]: Without dead ends: 73 [2020-11-28 02:56:37,647 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 [2020-11-28 02:56:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-28 02:56:37,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-11-28 02:56:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 02:56:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions. [2020-11-28 02:56:37,657 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 13 [2020-11-28 02:56:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,657 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 111 transitions. [2020-11-28 02:56:37,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2020-11-28 02:56:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:56:37,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:37,659 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1268365854, now seen corresponding path program 1 times [2020-11-28 02:56:37,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422771815] [2020-11-28 02:56:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422771815] [2020-11-28 02:56:37,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687301856] [2020-11-28 02:56:37,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,706 INFO L87 Difference]: Start difference. First operand 71 states and 111 transitions. Second operand 3 states. [2020-11-28 02:56:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,727 INFO L93 Difference]: Finished difference Result 108 states and 166 transitions. [2020-11-28 02:56:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-28 02:56:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,728 INFO L225 Difference]: With dead ends: 108 [2020-11-28 02:56:37,728 INFO L226 Difference]: Without dead ends: 75 [2020-11-28 02:56:37,729 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 [2020-11-28 02:56:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-28 02:56:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2020-11-28 02:56:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-28 02:56:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2020-11-28 02:56:37,738 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 14 [2020-11-28 02:56:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,738 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2020-11-28 02:56:37,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2020-11-28 02:56:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:56:37,739 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:56:37,740 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,740 INFO L82 PathProgramCache]: Analyzing trace with hash -588307484, now seen corresponding path program 1 times [2020-11-28 02:56:37,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893759615] [2020-11-28 02:56:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893759615] [2020-11-28 02:56:37,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736244796] [2020-11-28 02:56:37,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,809 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand 3 states. [2020-11-28 02:56:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,833 INFO L93 Difference]: Finished difference Result 201 states and 305 transitions. [2020-11-28 02:56:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-28 02:56:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,835 INFO L225 Difference]: With dead ends: 201 [2020-11-28 02:56:37,835 INFO L226 Difference]: Without dead ends: 135 [2020-11-28 02:56:37,836 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 [2020-11-28 02:56:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-28 02:56:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-28 02:56:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-28 02:56:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 195 transitions. [2020-11-28 02:56:37,849 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 195 transitions. Word has length 14 [2020-11-28 02:56:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,850 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 195 transitions. [2020-11-28 02:56:37,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 195 transitions. [2020-11-28 02:56:37,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:56:37,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:56:37,851 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,852 INFO L82 PathProgramCache]: Analyzing trace with hash 221039142, now seen corresponding path program 1 times [2020-11-28 02:56:37,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935488732] [2020-11-28 02:56:37,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935488732] [2020-11-28 02:56:37,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196047733] [2020-11-28 02:56:37,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,881 INFO L87 Difference]: Start difference. First operand 133 states and 195 transitions. Second operand 3 states. [2020-11-28 02:56:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,911 INFO L93 Difference]: Finished difference Result 161 states and 237 transitions. [2020-11-28 02:56:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-28 02:56:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:37,913 INFO L225 Difference]: With dead ends: 161 [2020-11-28 02:56:37,913 INFO L226 Difference]: Without dead ends: 159 [2020-11-28 02:56:37,913 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 [2020-11-28 02:56:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-28 02:56:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2020-11-28 02:56:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-28 02:56:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-11-28 02:56:37,929 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 14 [2020-11-28 02:56:37,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:37,929 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-11-28 02:56:37,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-11-28 02:56:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 02:56:37,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:37,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:37,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:56:37,931 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1057447170, now seen corresponding path program 1 times [2020-11-28 02:56:37,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:37,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028733709] [2020-11-28 02:56:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:37,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028733709] [2020-11-28 02:56:37,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:37,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:37,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396883359] [2020-11-28 02:56:37,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:37,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:37,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:37,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:37,979 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 3 states. [2020-11-28 02:56:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:37,998 INFO L93 Difference]: Finished difference Result 229 states and 329 transitions. [2020-11-28 02:56:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:37,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-28 02:56:37,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,001 INFO L225 Difference]: With dead ends: 229 [2020-11-28 02:56:38,001 INFO L226 Difference]: Without dead ends: 227 [2020-11-28 02:56:38,002 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 [2020-11-28 02:56:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-11-28 02:56:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2020-11-28 02:56:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-28 02:56:38,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 271 transitions. [2020-11-28 02:56:38,015 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 271 transitions. Word has length 15 [2020-11-28 02:56:38,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,016 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 271 transitions. [2020-11-28 02:56:38,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,016 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 271 transitions. [2020-11-28 02:56:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 02:56:38,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:56:38,018 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1866793796, now seen corresponding path program 1 times [2020-11-28 02:56:38,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324619251] [2020-11-28 02:56:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:38,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324619251] [2020-11-28 02:56:38,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:38,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256232609] [2020-11-28 02:56:38,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,083 INFO L87 Difference]: Start difference. First operand 193 states and 271 transitions. Second operand 3 states. [2020-11-28 02:56:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,121 INFO L93 Difference]: Finished difference Result 437 states and 609 transitions. [2020-11-28 02:56:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-28 02:56:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,128 INFO L225 Difference]: With dead ends: 437 [2020-11-28 02:56:38,128 INFO L226 Difference]: Without dead ends: 251 [2020-11-28 02:56:38,129 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 [2020-11-28 02:56:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-28 02:56:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2020-11-28 02:56:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-28 02:56:38,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 331 transitions. [2020-11-28 02:56:38,154 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 331 transitions. Word has length 15 [2020-11-28 02:56:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,155 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 331 transitions. [2020-11-28 02:56:38,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 331 transitions. [2020-11-28 02:56:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:38,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 02:56:38,164 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1579092089, now seen corresponding path program 1 times [2020-11-28 02:56:38,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768837678] [2020-11-28 02:56:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:38,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768837678] [2020-11-28 02:56:38,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:38,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369994255] [2020-11-28 02:56:38,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,216 INFO L87 Difference]: Start difference. First operand 249 states and 331 transitions. Second operand 3 states. [2020-11-28 02:56:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,252 INFO L93 Difference]: Finished difference Result 381 states and 505 transitions. [2020-11-28 02:56:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 02:56:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,254 INFO L225 Difference]: With dead ends: 381 [2020-11-28 02:56:38,254 INFO L226 Difference]: Without dead ends: 263 [2020-11-28 02:56:38,255 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 [2020-11-28 02:56:38,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-28 02:56:38,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2020-11-28 02:56:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-28 02:56:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 339 transitions. [2020-11-28 02:56:38,274 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 339 transitions. Word has length 16 [2020-11-28 02:56:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,275 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 339 transitions. [2020-11-28 02:56:38,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,275 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 339 transitions. [2020-11-28 02:56:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:38,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 02:56:38,276 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2035816837, now seen corresponding path program 1 times [2020-11-28 02:56:38,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435397918] [2020-11-28 02:56:38,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:38,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435397918] [2020-11-28 02:56:38,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:38,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316665689] [2020-11-28 02:56:38,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,308 INFO L87 Difference]: Start difference. First operand 261 states and 339 transitions. Second operand 3 states. [2020-11-28 02:56:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,337 INFO L93 Difference]: Finished difference Result 423 states and 540 transitions. [2020-11-28 02:56:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 02:56:38,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,342 INFO L225 Difference]: With dead ends: 423 [2020-11-28 02:56:38,342 INFO L226 Difference]: Without dead ends: 421 [2020-11-28 02:56:38,344 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 [2020-11-28 02:56:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-11-28 02:56:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 389. [2020-11-28 02:56:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-11-28 02:56:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 491 transitions. [2020-11-28 02:56:38,374 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 491 transitions. Word has length 16 [2020-11-28 02:56:38,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,374 INFO L481 AbstractCegarLoop]: Abstraction has 389 states and 491 transitions. [2020-11-28 02:56:38,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 491 transitions. [2020-11-28 02:56:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:38,376 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:38,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:38,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 02:56:38,376 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:38,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1449803833, now seen corresponding path program 1 times [2020-11-28 02:56:38,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:38,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039885782] [2020-11-28 02:56:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:38,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039885782] [2020-11-28 02:56:38,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:38,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:38,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092346383] [2020-11-28 02:56:38,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:38,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:38,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:38,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:38,399 INFO L87 Difference]: Start difference. First operand 389 states and 491 transitions. Second operand 3 states. [2020-11-28 02:56:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:38,424 INFO L93 Difference]: Finished difference Result 853 states and 1051 transitions. [2020-11-28 02:56:38,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:38,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 02:56:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:38,425 INFO L225 Difference]: With dead ends: 853 [2020-11-28 02:56:38,425 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:56:38,426 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 [2020-11-28 02:56:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:56:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:56:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:56:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:56:38,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-28 02:56:38,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:38,427 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:56:38,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:56:38,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:56:38,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 02:56:38,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:56:38,446 INFO L277 CegarLoopResult]: At program point L85-1(lines 26 90) the Hoare annotation is: true [2020-11-28 02:56:38,446 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 02:56:38,446 INFO L277 CegarLoopResult]: At program point L94(lines 6 95) the Hoare annotation is: true [2020-11-28 02:56:38,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L270 CegarLoopResult]: At program point L86-1(lines 7 95) the Hoare annotation is: false [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L70-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L55-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L80-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,447 INFO L274 CegarLoopResult]: For program point L47-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L65-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L277 CegarLoopResult]: At program point L91(lines 7 95) the Hoare annotation is: true [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L75-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,448 INFO L274 CegarLoopResult]: For program point L59-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,449 INFO L274 CegarLoopResult]: For program point L51-1(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,449 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-28 02:56:38,449 INFO L274 CegarLoopResult]: For program point L43(lines 43 45) no Hoare annotation was computed. [2020-11-28 02:56:38,449 INFO L274 CegarLoopResult]: For program point L43-2(lines 26 90) no Hoare annotation was computed. [2020-11-28 02:56:38,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:38 BoogieIcfgContainer [2020-11-28 02:56:38,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:38,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:38,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:38,460 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:38,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:36" (3/4) ... [2020-11-28 02:56:38,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:56:38,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 02:56:38,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:56:38,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:38,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:38,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_20586497-4957-4d38-bcba-924e94f67f6b/bin/uautomizer/witness.graphml [2020-11-28 02:56:38,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:38,523 INFO L168 Benchmark]: Toolchain (without parser) took 2732.34 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.8 MB in the beginning and 52.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,524 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 77.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:38,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.82 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 73.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.93 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:38,526 INFO L168 Benchmark]: Boogie Preprocessor took 30.55 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,526 INFO L168 Benchmark]: RCFGBuilder took 483.81 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 56.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,527 INFO L168 Benchmark]: TraceAbstraction took 1773.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 55.4 MB in the end (delta: 769.3 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,527 INFO L168 Benchmark]: Witness Printer took 61.70 ms. Allocated memory is still 117.4 MB. Free memory was 55.4 MB in the beginning and 52.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:38,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 77.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 324.82 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 73.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.93 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.55 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 483.81 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 56.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1773.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.2 MB in the beginning and 55.4 MB in the end (delta: 769.3 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Witness Printer took 61.70 ms. Allocated memory is still 117.4 MB. Free memory was 55.4 MB in the beginning and 52.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 574 SDtfs, 264 SDslu, 358 SDs, 0 SdLazy, 69 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 136 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 41 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 4278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 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...