./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/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 017d3654e23edd78942e40c40139f0cd7a1f3659 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:00:47,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:00:47,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:00:47,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:00:47,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:00:47,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:00:47,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:00:47,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:00:47,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:00:47,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:00:47,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:00:47,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:00:47,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:00:47,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:00:47,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:00:47,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:00:47,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:00:47,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:00:47,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:00:47,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:00:47,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:00:48,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:00:48,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:00:48,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:00:48,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:00:48,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:00:48,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:00:48,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:00:48,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:00:48,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:00:48,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:00:48,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:00:48,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:00:48,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:00:48,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:00:48,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:00:48,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:00:48,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:00:48,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:00:48,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:00:48,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:00:48,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:00:48,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:00:48,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:00:48,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:00:48,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:00:48,111 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:00:48,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:00:48,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:00:48,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:00:48,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:00:48,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:00:48,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:00:48,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:00:48,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:00:48,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:00:48,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:00:48,116 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:00:48,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:00:48,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:00:48,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:00:48,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:00:48,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:00:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:00:48,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:00:48,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:00:48,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:00:48,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:00:48,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:00:48,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:00:48,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:00:48,120 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_cb1e6690-a9e2-41e1-be07-de283a048e68/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 017d3654e23edd78942e40c40139f0cd7a1f3659 [2020-12-01 15:00:48,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:00:48,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:00:48,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:00:48,504 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:00:48,506 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:00:48,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-01 15:00:48,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/data/bff216172/e6d1b3261bef4df183aab7378b78e370/FLAG81b9f8aab [2020-12-01 15:00:49,410 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:00:49,411 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-01 15:00:49,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/data/bff216172/e6d1b3261bef4df183aab7378b78e370/FLAG81b9f8aab [2020-12-01 15:00:49,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/data/bff216172/e6d1b3261bef4df183aab7378b78e370 [2020-12-01 15:00:49,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:00:49,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:00:49,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:00:49,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:00:49,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:00:49,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:00:49" (1/1) ... [2020-12-01 15:00:49,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199c3845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:49, skipping insertion in model container [2020-12-01 15:00:49,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:00:49" (1/1) ... [2020-12-01 15:00:49,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:00:49,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:00:50,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:50,242 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:00:50,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:50,415 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:00:50,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50 WrapperNode [2020-12-01 15:00:50,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:00:50,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:50,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:00:50,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:00:50,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:50,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:00:50,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:00:50,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:00:50,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... [2020-12-01 15:00:50,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:00:50,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:00:50,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:00:50,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:00:50,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/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 [2020-12-01 15:00:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:00:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:00:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:00:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:00:52,661 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:00:52,662 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:00:52,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:52 BoogieIcfgContainer [2020-12-01 15:00:52,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:00:52,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:00:52,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:00:52,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:00:52,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:00:49" (1/3) ... [2020-12-01 15:00:52,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7818745d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:52, skipping insertion in model container [2020-12-01 15:00:52,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:50" (2/3) ... [2020-12-01 15:00:52,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7818745d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:52, skipping insertion in model container [2020-12-01 15:00:52,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:52" (3/3) ... [2020-12-01 15:00:52,680 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label14.c [2020-12-01 15:00:52,702 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:00:52,707 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:00:52,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:00:52,767 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:00:52,767 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:00:52,767 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:00:52,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:00:52,768 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:00:52,768 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:00:52,768 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:00:52,768 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:00:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-12-01 15:00:52,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 15:00:52,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:52,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:52,809 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:52,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times [2020-12-01 15:00:52,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:52,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144110099] [2020-12-01 15:00:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:53,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144110099] [2020-12-01 15:00:53,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:53,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:53,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556562883] [2020-12-01 15:00:53,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:53,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:53,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:53,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:53,208 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-12-01 15:00:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:54,531 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-12-01 15:00:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:54,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-01 15:00:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:54,557 INFO L225 Difference]: With dead ends: 553 [2020-12-01 15:00:54,557 INFO L226 Difference]: Without dead ends: 282 [2020-12-01 15:00:54,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-01 15:00:54,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-01 15:00:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-01 15:00:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-12-01 15:00:54,680 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 31 [2020-12-01 15:00:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:54,681 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-12-01 15:00:54,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-12-01 15:00:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-01 15:00:54,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:54,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:54,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:00:54,688 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:54,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1420435223, now seen corresponding path program 1 times [2020-12-01 15:00:54,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:54,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854688303] [2020-12-01 15:00:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:55,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854688303] [2020-12-01 15:00:55,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:55,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:55,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381929637] [2020-12-01 15:00:55,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:55,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:55,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:55,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:55,021 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-12-01 15:00:55,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:55,852 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-12-01 15:00:55,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:55,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-01 15:00:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:55,860 INFO L225 Difference]: With dead ends: 701 [2020-12-01 15:00:55,860 INFO L226 Difference]: Without dead ends: 421 [2020-12-01 15:00:55,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-12-01 15:00:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-12-01 15:00:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-01 15:00:55,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-12-01 15:00:55,918 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 100 [2020-12-01 15:00:55,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:55,919 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-12-01 15:00:55,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-12-01 15:00:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-01 15:00:55,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:55,939 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:55,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:00:55,940 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:55,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2008236584, now seen corresponding path program 1 times [2020-12-01 15:00:55,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:55,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580736902] [2020-12-01 15:00:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:56,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580736902] [2020-12-01 15:00:56,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:56,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:56,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844979375] [2020-12-01 15:00:56,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:56,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:56,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:56,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:56,181 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 3 states. [2020-12-01 15:00:57,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:57,025 INFO L93 Difference]: Finished difference Result 562 states and 787 transitions. [2020-12-01 15:00:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:57,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-01 15:00:57,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:57,031 INFO L225 Difference]: With dead ends: 562 [2020-12-01 15:00:57,031 INFO L226 Difference]: Without dead ends: 560 [2020-12-01 15:00:57,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-01 15:00:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2020-12-01 15:00:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-01 15:00:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-12-01 15:00:57,054 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 106 [2020-12-01 15:00:57,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:57,054 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-12-01 15:00:57,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-12-01 15:00:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-01 15:00:57,057 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:57,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:57,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:00:57,058 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:57,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1040822752, now seen corresponding path program 1 times [2020-12-01 15:00:57,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:57,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829084042] [2020-12-01 15:00:57,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:57,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829084042] [2020-12-01 15:00:57,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:57,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:57,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979964297] [2020-12-01 15:00:57,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:00:57,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:57,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:00:57,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:00:57,377 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 4 states. [2020-12-01 15:00:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:58,371 INFO L93 Difference]: Finished difference Result 990 states and 1390 transitions. [2020-12-01 15:00:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:00:58,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-12-01 15:00:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:58,379 INFO L225 Difference]: With dead ends: 990 [2020-12-01 15:00:58,379 INFO L226 Difference]: Without dead ends: 571 [2020-12-01 15:00:58,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-12-01 15:00:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 560. [2020-12-01 15:00:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-01 15:00:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions. [2020-12-01 15:00:58,399 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 109 [2020-12-01 15:00:58,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:58,400 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions. [2020-12-01 15:00:58,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:00:58,400 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions. [2020-12-01 15:00:58,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-01 15:00:58,403 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:58,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:58,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:00:58,404 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:58,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:58,405 INFO L82 PathProgramCache]: Analyzing trace with hash 438938417, now seen corresponding path program 1 times [2020-12-01 15:00:58,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:58,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111360888] [2020-12-01 15:00:58,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:58,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111360888] [2020-12-01 15:00:58,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:58,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:58,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120738867] [2020-12-01 15:00:58,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:58,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:58,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:58,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:58,574 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand 3 states. [2020-12-01 15:00:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:59,269 INFO L93 Difference]: Finished difference Result 1257 states and 1713 transitions. [2020-12-01 15:00:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:59,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-12-01 15:00:59,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:59,276 INFO L225 Difference]: With dead ends: 1257 [2020-12-01 15:00:59,276 INFO L226 Difference]: Without dead ends: 838 [2020-12-01 15:00:59,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:59,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-01 15:00:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699. [2020-12-01 15:00:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-12-01 15:00:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 889 transitions. [2020-12-01 15:00:59,298 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 889 transitions. Word has length 175 [2020-12-01 15:00:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:59,299 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 889 transitions. [2020-12-01 15:00:59,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 889 transitions. [2020-12-01 15:00:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-01 15:00:59,302 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:59,303 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:59,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:00:59,303 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:59,304 INFO L82 PathProgramCache]: Analyzing trace with hash -2090425977, now seen corresponding path program 1 times [2020-12-01 15:00:59,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:59,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753140681] [2020-12-01 15:00:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:59,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753140681] [2020-12-01 15:00:59,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:59,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 15:00:59,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513238288] [2020-12-01 15:00:59,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:00:59,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:59,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:00:59,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:00:59,643 INFO L87 Difference]: Start difference. First operand 699 states and 889 transitions. Second operand 7 states. [2020-12-01 15:01:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:00,360 INFO L93 Difference]: Finished difference Result 1312 states and 1687 transitions. [2020-12-01 15:01:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:01:00,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-12-01 15:01:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:01:00,368 INFO L225 Difference]: With dead ends: 1312 [2020-12-01 15:01:00,368 INFO L226 Difference]: Without dead ends: 699 [2020-12-01 15:01:00,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:01:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-12-01 15:01:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-12-01 15:01:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-12-01 15:01:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 885 transitions. [2020-12-01 15:01:00,391 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 885 transitions. Word has length 184 [2020-12-01 15:01:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:01:00,395 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 885 transitions. [2020-12-01 15:01:00,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:01:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 885 transitions. [2020-12-01 15:01:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-12-01 15:01:00,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:01:00,400 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:00,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:01:00,401 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:01:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:00,401 INFO L82 PathProgramCache]: Analyzing trace with hash 256357793, now seen corresponding path program 1 times [2020-12-01 15:01:00,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:00,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450976281] [2020-12-01 15:01:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:00,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450976281] [2020-12-01 15:01:00,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:01:00,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:01:00,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830899259] [2020-12-01 15:01:00,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:01:00,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:01:00,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:01:00,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:01:00,626 INFO L87 Difference]: Start difference. First operand 699 states and 885 transitions. Second operand 3 states. [2020-12-01 15:01:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:01,378 INFO L93 Difference]: Finished difference Result 1674 states and 2215 transitions. [2020-12-01 15:01:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:01:01,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-12-01 15:01:01,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:01:01,386 INFO L225 Difference]: With dead ends: 1674 [2020-12-01 15:01:01,386 INFO L226 Difference]: Without dead ends: 1116 [2020-12-01 15:01:01,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:01:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-12-01 15:01:01,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2020-12-01 15:01:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-12-01 15:01:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1213 transitions. [2020-12-01 15:01:01,417 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1213 transitions. Word has length 220 [2020-12-01 15:01:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:01:01,418 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1213 transitions. [2020-12-01 15:01:01,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:01:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1213 transitions. [2020-12-01 15:01:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-12-01 15:01:01,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:01:01,424 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:01,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:01:01,425 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:01:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:01,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1260821419, now seen corresponding path program 1 times [2020-12-01 15:01:01,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:01,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961668623] [2020-12-01 15:01:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 57 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:01:02,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961668623] [2020-12-01 15:01:02,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257899110] [2020-12-01 15:01:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:01:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:02,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:01:02,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:01:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-12-01 15:01:03,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:01:03,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-01 15:01:03,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371875526] [2020-12-01 15:01:03,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:01:03,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:01:03,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:01:03,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:01:03,114 INFO L87 Difference]: Start difference. First operand 977 states and 1213 transitions. Second operand 3 states. [2020-12-01 15:01:04,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:04,013 INFO L93 Difference]: Finished difference Result 2091 states and 2658 transitions. [2020-12-01 15:01:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:01:04,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-12-01 15:01:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:01:04,022 INFO L225 Difference]: With dead ends: 2091 [2020-12-01 15:01:04,023 INFO L226 Difference]: Without dead ends: 1255 [2020-12-01 15:01:04,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:01:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-12-01 15:01:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-12-01 15:01:04,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-12-01 15:01:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2020-12-01 15:01:04,061 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 276 [2020-12-01 15:01:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:01:04,062 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2020-12-01 15:01:04,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:01:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2020-12-01 15:01:04,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-12-01 15:01:04,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:01:04,071 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:01:04,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-12-01 15:01:04,285 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:01:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:01:04,285 INFO L82 PathProgramCache]: Analyzing trace with hash 341580603, now seen corresponding path program 1 times [2020-12-01 15:01:04,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:01:04,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240253273] [2020-12-01 15:01:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:01:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:01:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-12-01 15:01:04,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240253273] [2020-12-01 15:01:04,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:01:04,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:01:04,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523667145] [2020-12-01 15:01:04,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:01:04,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:01:04,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:01:04,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:01:04,655 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand 3 states. [2020-12-01 15:01:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:01:05,591 INFO L93 Difference]: Finished difference Result 2923 states and 3437 transitions. [2020-12-01 15:01:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:01:05,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-12-01 15:01:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:01:05,593 INFO L225 Difference]: With dead ends: 2923 [2020-12-01 15:01:05,594 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:01:05,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:01:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:01:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:01:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:01:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:01:05,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 330 [2020-12-01 15:01:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:01:05,600 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:01:05,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:01:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:01:05,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:01:05,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:01:05,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:01:05,839 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-12-01 15:01:05,997 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-12-01 15:01:06,002 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-12-01 15:01:06,003 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-12-01 15:01:06,003 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-12-01 15:01:06,003 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-12-01 15:01:06,003 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-12-01 15:01:06,004 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-12-01 15:01:06,004 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,004 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,004 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,004 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,005 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,008 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,008 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-12-01 15:01:06,008 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-01 15:01:06,009 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-01 15:01:06,009 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-01 15:01:06,009 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-01 15:01:06,010 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-01 15:01:06,010 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-01 15:01:06,010 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-12-01 15:01:06,010 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-12-01 15:01:06,010 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,011 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-01 15:01:06,012 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-12-01 15:01:06,013 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,014 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-01 15:01:06,015 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-12-01 15:01:06,016 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-12-01 15:01:06,017 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-01 15:01:06,018 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,019 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-01 15:01:06,020 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-01 15:01:06,025 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-01 15:01:06,025 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-12-01 15:01:06,026 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:01:06,027 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-01 15:01:06,028 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-01 15:01:06,028 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-01 15:01:06,028 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-01 15:01:06,028 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-01 15:01:06,029 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 (<= ~a1~0 33) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2))) [2020-12-01 15:01:06,029 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-12-01 15:01:06,029 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-12-01 15:01:06,029 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-12-01 15:01:06,029 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,030 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-01 15:01:06,031 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-12-01 15:01:06,032 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,033 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-12-01 15:01:06,034 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:01:06,035 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-01 15:01:06,036 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-01 15:01:06,037 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-01 15:01:06,037 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-01 15:01:06,037 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-12-01 15:01:06,037 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-12-01 15:01:06,037 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-12-01 15:01:06,039 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 (<= ~a1~0 33) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2))) [2020-12-01 15:01:06,039 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-12-01 15:01:06,039 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,039 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-12-01 15:01:06,040 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-01 15:01:06,041 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-12-01 15:01:06,042 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,043 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-01 15:01:06,044 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-01 15:01:06,045 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-01 15:01:06,045 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-01 15:01:06,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:01:06 BoogieIcfgContainer [2020-12-01 15:01:06,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:01:06,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:01:06,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:01:06,093 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:01:06,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:52" (3/4) ... [2020-12-01 15:01:06,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:01:06,134 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:01:06,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:01:06,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:01:06,138 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:01:06,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb1e6690-a9e2-41e1-be07-de283a048e68/bin/uautomizer/witness.graphml [2020-12-01 15:01:06,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:01:06,347 INFO L168 Benchmark]: Toolchain (without parser) took 16764.77 ms. Allocated memory was 125.8 MB in the beginning and 308.3 MB in the end (delta: 182.5 MB). Free memory was 94.5 MB in the beginning and 175.4 MB in the end (delta: -80.9 MB). Peak memory consumption was 100.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,348 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 88.1 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:01:06,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.69 ms. Allocated memory is still 125.8 MB. Free memory was 94.5 MB in the beginning and 86.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.23 ms. Allocated memory is still 125.8 MB. Free memory was 85.8 MB in the beginning and 78.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,350 INFO L168 Benchmark]: Boogie Preprocessor took 137.32 ms. Allocated memory is still 125.8 MB. Free memory was 78.2 MB in the beginning and 72.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,350 INFO L168 Benchmark]: RCFGBuilder took 1981.32 ms. Allocated memory is still 125.8 MB. Free memory was 72.8 MB in the beginning and 54.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,351 INFO L168 Benchmark]: TraceAbstraction took 13422.96 ms. Allocated memory was 125.8 MB in the beginning and 308.3 MB in the end (delta: 182.5 MB). Free memory was 54.7 MB in the beginning and 190.1 MB in the end (delta: -135.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,351 INFO L168 Benchmark]: Witness Printer took 252.73 ms. Allocated memory is still 308.3 MB. Free memory was 190.1 MB in the beginning and 175.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:01:06,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 88.1 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 828.69 ms. Allocated memory is still 125.8 MB. Free memory was 94.5 MB in the beginning and 86.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.23 ms. Allocated memory is still 125.8 MB. Free memory was 85.8 MB in the beginning and 78.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 137.32 ms. Allocated memory is still 125.8 MB. Free memory was 78.2 MB in the beginning and 72.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1981.32 ms. Allocated memory is still 125.8 MB. Free memory was 72.8 MB in the beginning and 54.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13422.96 ms. Allocated memory was 125.8 MB in the beginning and 308.3 MB in the end (delta: 182.5 MB). Free memory was 54.7 MB in the beginning and 190.1 MB in the end (delta: -135.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. * Witness Printer took 252.73 ms. Allocated memory is still 308.3 MB. Free memory was 190.1 MB in the beginning and 175.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 592]: Loop Invariant Derived loop invariant: (((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a1 <= 33) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a1 <= 33) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 711 SDtfs, 1036 SDslu, 49 SDs, 0 SdLazy, 3565 SolverSat, 663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 567 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1323 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 178 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1807 NumberOfCodeBlocks, 1807 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1797 ConstructedInterpolants, 0 QuantifiedInterpolants, 2126635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1040/1154 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...