./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/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 ca35bd50d888047fd624bd95d9bb19453630de07 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:11:55,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:55,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:55,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:55,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:55,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:55,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:55,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:55,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:55,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:55,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:55,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:55,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:55,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:55,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:55,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:55,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:55,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:55,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:55,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:55,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:55,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:55,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:55,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:55,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:55,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:55,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:55,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:55,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:55,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:55,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:55,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:55,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:55,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:55,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:55,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:55,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:55,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:55,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:55,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:55,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:55,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:55,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:55,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:55,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:55,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:55,927 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:55,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:55,927 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:55,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:55,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:55,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:55,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:55,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:55,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:55,929 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:55,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:55,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:55,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:55,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:55,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:55,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:55,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:55,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:55,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:55,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:55,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:55,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:55,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:55,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:55,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:55,932 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_57245aa7-13fc-4cb9-8915-31a8012eba2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca35bd50d888047fd624bd95d9bb19453630de07 [2020-11-28 03:11:56,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:56,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:56,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:56,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:56,281 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:56,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-11-28 03:11:56,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/data/61c561745/01be2730d1b04113afa7407f081353db/FLAG24135a8c2 [2020-11-28 03:11:56,861 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:56,861 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-11-28 03:11:56,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/data/61c561745/01be2730d1b04113afa7407f081353db/FLAG24135a8c2 [2020-11-28 03:11:57,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/data/61c561745/01be2730d1b04113afa7407f081353db [2020-11-28 03:11:57,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:57,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:57,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:57,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:57,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:57,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b9a50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57, skipping insertion in model container [2020-11-28 03:11:57,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:57,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:57,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:57,486 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:57,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:57,526 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:57,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57 WrapperNode [2020-11-28 03:11:57,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:57,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:57,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:57,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:57,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:57,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:57,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:57,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:57,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... [2020-11-28 03:11:57,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:57,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:57,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:57,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:57,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:58,094 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:58,094 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:11:58,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:58 BoogieIcfgContainer [2020-11-28 03:11:58,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:58,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:58,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:58,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:58,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:57" (1/3) ... [2020-11-28 03:11:58,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d2dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:58, skipping insertion in model container [2020-11-28 03:11:58,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:57" (2/3) ... [2020-11-28 03:11:58,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d2dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:58, skipping insertion in model container [2020-11-28 03:11:58,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:58" (3/3) ... [2020-11-28 03:11:58,105 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-11-28 03:11:58,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:58,120 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:11:58,136 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:11:58,163 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:58,163 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:58,164 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:58,164 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:58,164 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:58,164 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:58,164 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:58,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-11-28 03:11:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:11:58,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:58,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:11:58,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:58,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:58,192 INFO L82 PathProgramCache]: Analyzing trace with hash 28699930, now seen corresponding path program 1 times [2020-11-28 03:11:58,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:58,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924386426] [2020-11-28 03:11:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:58,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924386426] [2020-11-28 03:11:58,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:58,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:58,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030083813] [2020-11-28 03:11:58,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:58,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:58,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:58,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:58,431 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2020-11-28 03:11:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:58,592 INFO L93 Difference]: Finished difference Result 132 states and 219 transitions. [2020-11-28 03:11:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:58,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:11:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:58,609 INFO L225 Difference]: With dead ends: 132 [2020-11-28 03:11:58,609 INFO L226 Difference]: Without dead ends: 79 [2020-11-28 03:11:58,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:58,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-28 03:11:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-28 03:11:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-28 03:11:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2020-11-28 03:11:58,656 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 5 [2020-11-28 03:11:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:58,657 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2020-11-28 03:11:58,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2020-11-28 03:11:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:11:58,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:58,658 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:58,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:58,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:58,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1485309586, now seen corresponding path program 1 times [2020-11-28 03:11:58,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:58,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583755932] [2020-11-28 03:11:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:58,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583755932] [2020-11-28 03:11:58,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:58,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:58,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301051773] [2020-11-28 03:11:58,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:58,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:58,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:58,712 INFO L87 Difference]: Start difference. First operand 79 states and 121 transitions. Second operand 3 states. [2020-11-28 03:11:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:58,803 INFO L93 Difference]: Finished difference Result 156 states and 246 transitions. [2020-11-28 03:11:58,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:58,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 03:11:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:58,806 INFO L225 Difference]: With dead ends: 156 [2020-11-28 03:11:58,806 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 03:11:58,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:58,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 03:11:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-28 03:11:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-28 03:11:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2020-11-28 03:11:58,837 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 10 [2020-11-28 03:11:58,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:58,837 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2020-11-28 03:11:58,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2020-11-28 03:11:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:11:58,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:58,843 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:58,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:58,844 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:58,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1152886494, now seen corresponding path program 1 times [2020-11-28 03:11:58,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:58,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336167325] [2020-11-28 03:11:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:11:58,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336167325] [2020-11-28 03:11:58,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:58,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:58,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875057003] [2020-11-28 03:11:58,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:58,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:58,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:58,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:58,930 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand 3 states. [2020-11-28 03:11:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:59,009 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2020-11-28 03:11:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:59,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 03:11:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:59,011 INFO L225 Difference]: With dead ends: 230 [2020-11-28 03:11:59,012 INFO L226 Difference]: Without dead ends: 153 [2020-11-28 03:11:59,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-28 03:11:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-11-28 03:11:59,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-11-28 03:11:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 230 transitions. [2020-11-28 03:11:59,047 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 230 transitions. Word has length 16 [2020-11-28 03:11:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:59,047 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 230 transitions. [2020-11-28 03:11:59,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 230 transitions. [2020-11-28 03:11:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:11:59,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:59,053 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:59,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:59,053 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:59,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:59,055 INFO L82 PathProgramCache]: Analyzing trace with hash -77104047, now seen corresponding path program 1 times [2020-11-28 03:11:59,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:59,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011088211] [2020-11-28 03:11:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:11:59,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011088211] [2020-11-28 03:11:59,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:59,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:59,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388957733] [2020-11-28 03:11:59,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:59,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:59,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:59,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,114 INFO L87 Difference]: Start difference. First operand 153 states and 230 transitions. Second operand 3 states. [2020-11-28 03:11:59,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:59,299 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2020-11-28 03:11:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:59,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-28 03:11:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:59,307 INFO L225 Difference]: With dead ends: 321 [2020-11-28 03:11:59,307 INFO L226 Difference]: Without dead ends: 170 [2020-11-28 03:11:59,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-28 03:11:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2020-11-28 03:11:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-28 03:11:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 246 transitions. [2020-11-28 03:11:59,351 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 246 transitions. Word has length 31 [2020-11-28 03:11:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:59,352 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 246 transitions. [2020-11-28 03:11:59,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 246 transitions. [2020-11-28 03:11:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:11:59,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:59,354 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:59,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:59,355 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1611839695, now seen corresponding path program 1 times [2020-11-28 03:11:59,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:59,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29536041] [2020-11-28 03:11:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-28 03:11:59,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29536041] [2020-11-28 03:11:59,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:59,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:59,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275922803] [2020-11-28 03:11:59,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:59,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:59,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:59,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,444 INFO L87 Difference]: Start difference. First operand 168 states and 246 transitions. Second operand 3 states. [2020-11-28 03:11:59,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:59,591 INFO L93 Difference]: Finished difference Result 378 states and 567 transitions. [2020-11-28 03:11:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:59,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-28 03:11:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:59,594 INFO L225 Difference]: With dead ends: 378 [2020-11-28 03:11:59,594 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 03:11:59,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 03:11:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-11-28 03:11:59,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-28 03:11:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2020-11-28 03:11:59,637 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 31 [2020-11-28 03:11:59,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:59,638 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2020-11-28 03:11:59,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2020-11-28 03:11:59,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 03:11:59,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:59,645 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2020-11-28 03:11:59,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:11:59,647 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:59,648 INFO L82 PathProgramCache]: Analyzing trace with hash -359756882, now seen corresponding path program 1 times [2020-11-28 03:11:59,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:59,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845760103] [2020-11-28 03:11:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-28 03:11:59,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845760103] [2020-11-28 03:11:59,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:59,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:59,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913238253] [2020-11-28 03:11:59,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:59,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:59,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:59,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,750 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand 3 states. [2020-11-28 03:11:59,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:59,810 INFO L93 Difference]: Finished difference Result 415 states and 578 transitions. [2020-11-28 03:11:59,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:59,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-11-28 03:11:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:59,813 INFO L225 Difference]: With dead ends: 415 [2020-11-28 03:11:59,813 INFO L226 Difference]: Without dead ends: 265 [2020-11-28 03:11:59,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-28 03:11:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-11-28 03:11:59,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-28 03:11:59,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2020-11-28 03:11:59,840 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 45 [2020-11-28 03:11:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:59,845 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2020-11-28 03:11:59,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:59,846 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2020-11-28 03:11:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-28 03:11:59,854 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:59,855 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 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] [2020-11-28 03:11:59,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:11:59,856 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:59,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1572307813, now seen corresponding path program 1 times [2020-11-28 03:11:59,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:59,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967331041] [2020-11-28 03:11:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:11:59,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967331041] [2020-11-28 03:11:59,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:59,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:59,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997882610] [2020-11-28 03:11:59,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:59,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:59,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:59,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:59,923 INFO L87 Difference]: Start difference. First operand 263 states and 365 transitions. Second operand 3 states. [2020-11-28 03:12:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:00,073 INFO L93 Difference]: Finished difference Result 522 states and 739 transitions. [2020-11-28 03:12:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:00,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-11-28 03:12:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:00,084 INFO L225 Difference]: With dead ends: 522 [2020-11-28 03:12:00,085 INFO L226 Difference]: Without dead ends: 183 [2020-11-28 03:12:00,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-11-28 03:12:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2020-11-28 03:12:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-28 03:12:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2020-11-28 03:12:00,097 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 48 [2020-11-28 03:12:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:00,097 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2020-11-28 03:12:00,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2020-11-28 03:12:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-28 03:12:00,100 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:00,101 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:00,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:12:00,101 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:00,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:00,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1927293386, now seen corresponding path program 1 times [2020-11-28 03:12:00,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:00,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754916895] [2020-11-28 03:12:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 03:12:00,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754916895] [2020-11-28 03:12:00,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:00,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:12:00,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474747391] [2020-11-28 03:12:00,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:00,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:00,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:00,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:00,180 INFO L87 Difference]: Start difference. First operand 180 states and 233 transitions. Second operand 3 states. [2020-11-28 03:12:00,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:00,196 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2020-11-28 03:12:00,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:00,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-11-28 03:12:00,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:00,197 INFO L225 Difference]: With dead ends: 273 [2020-11-28 03:12:00,197 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:12:00,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:12:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:12:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:12:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:12:00,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-11-28 03:12:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:00,199 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:00,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:00,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:12:00,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:12:00,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:12:00,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:12:00,750 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:12:00,750 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:12:00,750 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L277 CegarLoopResult]: At program point L218(lines 10 219) the Hoare annotation is: true [2020-11-28 03:12:00,751 INFO L274 CegarLoopResult]: For program point L70(lines 70 187) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L274 CegarLoopResult]: For program point L62(lines 62 191) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L274 CegarLoopResult]: For program point L153-1(lines 76 185) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L274 CegarLoopResult]: For program point L54(lines 54 195) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L274 CegarLoopResult]: For program point L87-1(lines 76 185) no Hoare annotation was computed. [2020-11-28 03:12:00,751 INFO L270 CegarLoopResult]: At program point L178(lines 24 213) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0)) .cse0) (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0) (and .cse0 (<= 8672 ULTIMATE.start_main_~s__state~0)))) [2020-11-28 03:12:00,752 INFO L274 CegarLoopResult]: For program point L46(lines 46 199) no Hoare annotation was computed. [2020-11-28 03:12:00,752 INFO L274 CegarLoopResult]: For program point L137(lines 137 141) no Hoare annotation was computed. [2020-11-28 03:12:00,752 INFO L270 CegarLoopResult]: At program point L71(lines 70 187) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-11-28 03:12:00,752 INFO L274 CegarLoopResult]: For program point L38(lines 38 203) no Hoare annotation was computed. [2020-11-28 03:12:00,752 INFO L270 CegarLoopResult]: At program point L63(lines 62 191) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,752 INFO L270 CegarLoopResult]: At program point L55(lines 54 195) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,752 INFO L270 CegarLoopResult]: At program point L47(lines 46 199) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,752 INFO L274 CegarLoopResult]: For program point L80-1(lines 80 82) no Hoare annotation was computed. [2020-11-28 03:12:00,753 INFO L274 CegarLoopResult]: For program point L171-1(lines 76 185) no Hoare annotation was computed. [2020-11-28 03:12:00,753 INFO L270 CegarLoopResult]: At program point L39(lines 38 203) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~s__state~0 8512))) (or (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and (= ULTIMATE.start_main_~blastFlag~0 1) .cse0) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)))) [2020-11-28 03:12:00,753 INFO L274 CegarLoopResult]: For program point L31(lines 31 206) no Hoare annotation was computed. [2020-11-28 03:12:00,753 INFO L270 CegarLoopResult]: At program point L122(lines 115 124) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,753 INFO L270 CegarLoopResult]: At program point L114(lines 107 125) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,753 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 166) no Hoare annotation was computed. [2020-11-28 03:12:00,753 INFO L270 CegarLoopResult]: At program point L32(lines 31 206) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L107(lines 107 125) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L74(lines 74 185) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L66(lines 66 189) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L58(lines 58 193) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-11-28 03:12:00,754 INFO L277 CegarLoopResult]: At program point L215(lines 10 219) the Hoare annotation is: true [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L116(lines 116 120) no Hoare annotation was computed. [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L50(lines 50 197) no Hoare annotation was computed. [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L174(lines 174 176) no Hoare annotation was computed. [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L108(lines 108 112) no Hoare annotation was computed. [2020-11-28 03:12:00,755 INFO L270 CegarLoopResult]: At program point L75(lines 74 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8672 ULTIMATE.start_main_~s__state~0)) [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L42(lines 42 201) no Hoare annotation was computed. [2020-11-28 03:12:00,755 INFO L270 CegarLoopResult]: At program point L67(lines 66 189) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-11-28 03:12:00,755 INFO L274 CegarLoopResult]: For program point L34(lines 34 205) no Hoare annotation was computed. [2020-11-28 03:12:00,756 INFO L270 CegarLoopResult]: At program point L59(lines 58 193) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,756 INFO L270 CegarLoopResult]: At program point L51(lines 50 197) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,756 INFO L270 CegarLoopResult]: At program point L175(lines 10 219) the Hoare annotation is: false [2020-11-28 03:12:00,756 INFO L270 CegarLoopResult]: At program point L43(lines 42 201) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,756 INFO L270 CegarLoopResult]: At program point L35(lines 34 205) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-11-28 03:12:00,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:12:00 BoogieIcfgContainer [2020-11-28 03:12:00,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:12:00,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:00,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:00,799 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:00,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:58" (3/4) ... [2020-11-28 03:12:00,804 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:12:00,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:12:00,821 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:12:00,821 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:00,821 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:00,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_57245aa7-13fc-4cb9-8915-31a8012eba2b/bin/uautomizer/witness.graphml [2020-11-28 03:12:00,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:00,909 INFO L168 Benchmark]: Toolchain (without parser) took 3697.94 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 81.9 MB in the beginning and 87.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,910 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:00,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.29 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 83.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 81.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,911 INFO L168 Benchmark]: Boogie Preprocessor took 25.56 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 80.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,912 INFO L168 Benchmark]: RCFGBuilder took 503.40 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 61.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,912 INFO L168 Benchmark]: TraceAbstraction took 2700.84 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 61.0 MB in the beginning and 91.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,913 INFO L168 Benchmark]: Witness Printer took 108.04 ms. Allocated memory is still 132.1 MB. Free memory was 91.5 MB in the beginning and 87.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:00,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.29 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 83.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 81.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.56 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 80.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 503.40 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 61.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2700.84 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 61.0 MB in the beginning and 91.5 MB in the end (delta: -30.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * Witness Printer took 108.04 ms. Allocated memory is still 132.1 MB. Free memory was 91.5 MB in the beginning and 87.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((s__state == 8512 && blastFlag == 2) || (blastFlag == 1 && s__state == 8512)) || (s__state == 8512 && blastFlag == 0) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || blastFlag == 1) || blastFlag == 2) || blastFlag == 0) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 613 SDtfs, 246 SDslu, 321 SDs, 0 SdLazy, 239 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 226 HoareAnnotationTreeSize, 18 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 218/218 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...