./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d90d90ab0f83213f6e486d9f5a42850d0f82e05d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:39:20,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:39:20,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:39:20,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:39:20,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:39:20,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:39:20,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:39:20,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:39:20,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:39:20,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:39:20,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:39:20,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:39:20,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:39:20,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:39:20,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:39:20,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:39:20,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:39:20,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:39:20,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:39:20,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:39:20,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:39:20,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:39:20,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:39:20,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:39:20,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:39:20,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:39:20,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:39:20,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:39:20,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:39:20,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:39:20,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:39:20,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:39:20,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:39:20,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:39:20,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:39:20,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:39:20,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:39:20,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:39:20,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:39:20,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:39:20,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:39:20,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:39:20,923 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:39:20,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:39:20,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:39:20,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:39:20,924 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:39:20,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:39:20,925 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:39:20,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:39:20,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:39:20,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:39:20,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:39:20,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2ebbe255-943c-4b6f-a3e4-348da4204459/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(__VERIFIER_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 -> d90d90ab0f83213f6e486d9f5a42850d0f82e05d [2019-12-07 16:39:21,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:39:21,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:39:21,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:39:21,041 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:39:21,041 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:39:21,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label10.c [2019-12-07 16:39:21,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/data/a196a13d2/2c68168576cd4a92b4cd8af49f729c69/FLAG0bc34afb6 [2019-12-07 16:39:21,565 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:39:21,566 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/sv-benchmarks/c/eca-rers2012/Problem01_label10.c [2019-12-07 16:39:21,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/data/a196a13d2/2c68168576cd4a92b4cd8af49f729c69/FLAG0bc34afb6 [2019-12-07 16:39:21,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/data/a196a13d2/2c68168576cd4a92b4cd8af49f729c69 [2019-12-07 16:39:21,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:39:21,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:39:21,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:39:21,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:39:21,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:39:21,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:21,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaa2f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21, skipping insertion in model container [2019-12-07 16:39:21,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:21,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:39:21,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:39:21,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:39:21,880 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:39:21,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:39:21,954 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:39:21,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21 WrapperNode [2019-12-07 16:39:21,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:39:21,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:39:21,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:39:21,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:39:21,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:21,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:39:22,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:39:22,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:39:22,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:39:22,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... [2019-12-07 16:39:22,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:39:22,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:39:22,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:39:22,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:39:22,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/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 [2019-12-07 16:39:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:39:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:39:22,676 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:39:22,676 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 16:39:22,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:22 BoogieIcfgContainer [2019-12-07 16:39:22,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:39:22,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:39:22,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:39:22,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:39:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:39:21" (1/3) ... [2019-12-07 16:39:22,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78812fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:39:22, skipping insertion in model container [2019-12-07 16:39:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:39:21" (2/3) ... [2019-12-07 16:39:22,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78812fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:39:22, skipping insertion in model container [2019-12-07 16:39:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:22" (3/3) ... [2019-12-07 16:39:22,681 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label10.c [2019-12-07 16:39:22,688 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:39:22,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:39:22,700 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:39:22,717 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:39:22,718 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:39:22,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:39:22,718 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:39:22,718 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:39:22,718 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:39:22,718 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:39:22,718 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:39:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-07 16:39:22,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-12-07 16:39:22,740 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:22,740 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:22,741 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:22,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1265250489, now seen corresponding path program 1 times [2019-12-07 16:39:22,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:22,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959689186] [2019-12-07 16:39:22,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:39:23,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959689186] [2019-12-07 16:39:23,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:23,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:39:23,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731715940] [2019-12-07 16:39:23,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:39:23,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:23,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:39:23,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:23,025 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-12-07 16:39:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:23,756 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-12-07 16:39:23,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:39:23,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2019-12-07 16:39:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:23,768 INFO L225 Difference]: With dead ends: 662 [2019-12-07 16:39:23,769 INFO L226 Difference]: Without dead ends: 397 [2019-12-07 16:39:23,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-12-07 16:39:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-12-07 16:39:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-12-07 16:39:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2019-12-07 16:39:23,818 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 110 [2019-12-07 16:39:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:23,818 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2019-12-07 16:39:23,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:39:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2019-12-07 16:39:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-12-07 16:39:23,823 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:23,823 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:23,824 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:23,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:23,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1518740255, now seen corresponding path program 1 times [2019-12-07 16:39:23,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:23,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204006504] [2019-12-07 16:39:23,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:39:23,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204006504] [2019-12-07 16:39:23,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:23,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:39:23,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280238482] [2019-12-07 16:39:23,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:39:23,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:23,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:39:23,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:23,876 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand 4 states. [2019-12-07 16:39:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:24,236 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2019-12-07 16:39:24,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:24,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2019-12-07 16:39:24,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:24,240 INFO L225 Difference]: With dead ends: 1185 [2019-12-07 16:39:24,240 INFO L226 Difference]: Without dead ends: 790 [2019-12-07 16:39:24,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:24,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-12-07 16:39:24,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-12-07 16:39:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-12-07 16:39:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1066 transitions. [2019-12-07 16:39:24,264 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1066 transitions. Word has length 115 [2019-12-07 16:39:24,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:24,264 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1066 transitions. [2019-12-07 16:39:24,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:39:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1066 transitions. [2019-12-07 16:39:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-12-07 16:39:24,267 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:24,267 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:24,267 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:24,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:24,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1261995703, now seen corresponding path program 1 times [2019-12-07 16:39:24,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:24,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333604864] [2019-12-07 16:39:24,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 16:39:24,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333604864] [2019-12-07 16:39:24,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:24,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:39:24,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51591843] [2019-12-07 16:39:24,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:39:24,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:24,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:24,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:39:24,324 INFO L87 Difference]: Start difference. First operand 790 states and 1066 transitions. Second operand 3 states. [2019-12-07 16:39:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:24,614 INFO L93 Difference]: Finished difference Result 1971 states and 2686 transitions. [2019-12-07 16:39:24,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:24,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-12-07 16:39:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:24,620 INFO L225 Difference]: With dead ends: 1971 [2019-12-07 16:39:24,621 INFO L226 Difference]: Without dead ends: 1183 [2019-12-07 16:39:24,622 INFO L630 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 [2019-12-07 16:39:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-12-07 16:39:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 921. [2019-12-07 16:39:24,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-12-07 16:39:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1246 transitions. [2019-12-07 16:39:24,642 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1246 transitions. Word has length 136 [2019-12-07 16:39:24,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:24,642 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1246 transitions. [2019-12-07 16:39:24,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:39:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1246 transitions. [2019-12-07 16:39:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-12-07 16:39:24,646 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:24,646 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:24,646 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:24,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:24,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1869093076, now seen corresponding path program 1 times [2019-12-07 16:39:24,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:24,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632723408] [2019-12-07 16:39:24,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-12-07 16:39:24,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632723408] [2019-12-07 16:39:24,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:24,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:39:24,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303285838] [2019-12-07 16:39:24,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:39:24,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:24,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:24,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:39:24,719 INFO L87 Difference]: Start difference. First operand 921 states and 1246 transitions. Second operand 3 states. [2019-12-07 16:39:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:25,045 INFO L93 Difference]: Finished difference Result 2233 states and 2997 transitions. [2019-12-07 16:39:25,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:25,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-12-07 16:39:25,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:25,051 INFO L225 Difference]: With dead ends: 2233 [2019-12-07 16:39:25,051 INFO L226 Difference]: Without dead ends: 1314 [2019-12-07 16:39:25,052 INFO L630 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 [2019-12-07 16:39:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-12-07 16:39:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1052. [2019-12-07 16:39:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-12-07 16:39:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1370 transitions. [2019-12-07 16:39:25,070 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1370 transitions. Word has length 172 [2019-12-07 16:39:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:25,071 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1370 transitions. [2019-12-07 16:39:25,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:39:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1370 transitions. [2019-12-07 16:39:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-12-07 16:39:25,073 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:25,073 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:25,073 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:25,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:25,073 INFO L82 PathProgramCache]: Analyzing trace with hash 378795968, now seen corresponding path program 1 times [2019-12-07 16:39:25,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:25,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930955168] [2019-12-07 16:39:25,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-12-07 16:39:25,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930955168] [2019-12-07 16:39:25,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:25,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:39:25,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648694997] [2019-12-07 16:39:25,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:39:25,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:25,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:39:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:39:25,150 INFO L87 Difference]: Start difference. First operand 1052 states and 1370 transitions. Second operand 4 states. [2019-12-07 16:39:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:25,602 INFO L93 Difference]: Finished difference Result 2238 states and 2892 transitions. [2019-12-07 16:39:25,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:39:25,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2019-12-07 16:39:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:25,607 INFO L225 Difference]: With dead ends: 2238 [2019-12-07 16:39:25,607 INFO L226 Difference]: Without dead ends: 1188 [2019-12-07 16:39:25,608 INFO L630 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 [2019-12-07 16:39:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2019-12-07 16:39:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1183. [2019-12-07 16:39:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-12-07 16:39:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1507 transitions. [2019-12-07 16:39:25,626 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1507 transitions. Word has length 180 [2019-12-07 16:39:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:25,626 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1507 transitions. [2019-12-07 16:39:25,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:39:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1507 transitions. [2019-12-07 16:39:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-12-07 16:39:25,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:25,628 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:25,629 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:25,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:25,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1391763960, now seen corresponding path program 1 times [2019-12-07 16:39:25,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:25,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154449922] [2019-12-07 16:39:25,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-12-07 16:39:25,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154449922] [2019-12-07 16:39:25,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:25,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:39:25,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393928590] [2019-12-07 16:39:25,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:39:25,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:25,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:39:25,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:39:25,693 INFO L87 Difference]: Start difference. First operand 1183 states and 1507 transitions. Second operand 5 states. [2019-12-07 16:39:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:26,342 INFO L93 Difference]: Finished difference Result 2495 states and 3215 transitions. [2019-12-07 16:39:26,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:39:26,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2019-12-07 16:39:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:26,350 INFO L225 Difference]: With dead ends: 2495 [2019-12-07 16:39:26,350 INFO L226 Difference]: Without dead ends: 1445 [2019-12-07 16:39:26,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:39:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-12-07 16:39:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-12-07 16:39:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-12-07 16:39:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions. [2019-12-07 16:39:26,381 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 184 [2019-12-07 16:39:26,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:26,381 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions. [2019-12-07 16:39:26,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:39:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions. [2019-12-07 16:39:26,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-12-07 16:39:26,385 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:26,385 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:26,385 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:26,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:26,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1949803731, now seen corresponding path program 1 times [2019-12-07 16:39:26,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:26,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256832756] [2019-12-07 16:39:26,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-12-07 16:39:26,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256832756] [2019-12-07 16:39:26,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:26,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:39:26,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289394302] [2019-12-07 16:39:26,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:39:26,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:26,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:26,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:39:26,447 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand 3 states. [2019-12-07 16:39:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:26,768 INFO L93 Difference]: Finished difference Result 3150 states and 3936 transitions. [2019-12-07 16:39:26,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:26,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-12-07 16:39:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:26,774 INFO L225 Difference]: With dead ends: 3150 [2019-12-07 16:39:26,774 INFO L226 Difference]: Without dead ends: 1576 [2019-12-07 16:39:26,776 INFO L630 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 [2019-12-07 16:39:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-12-07 16:39:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2019-12-07 16:39:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-12-07 16:39:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1592 transitions. [2019-12-07 16:39:26,794 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1592 transitions. Word has length 187 [2019-12-07 16:39:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:26,794 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1592 transitions. [2019-12-07 16:39:26,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:39:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1592 transitions. [2019-12-07 16:39:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-12-07 16:39:26,797 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:26,797 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:26,797 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:26,798 INFO L82 PathProgramCache]: Analyzing trace with hash -87166121, now seen corresponding path program 1 times [2019-12-07 16:39:26,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:26,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749108130] [2019-12-07 16:39:26,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-12-07 16:39:26,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749108130] [2019-12-07 16:39:26,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:39:26,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:39:26,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457695751] [2019-12-07 16:39:26,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:39:26,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:26,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:26,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:39:26,864 INFO L87 Difference]: Start difference. First operand 1445 states and 1592 transitions. Second operand 3 states. [2019-12-07 16:39:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:27,142 INFO L93 Difference]: Finished difference Result 3412 states and 3789 transitions. [2019-12-07 16:39:27,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:27,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-12-07 16:39:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:27,149 INFO L225 Difference]: With dead ends: 3412 [2019-12-07 16:39:27,149 INFO L226 Difference]: Without dead ends: 2100 [2019-12-07 16:39:27,151 INFO L630 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 [2019-12-07 16:39:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-12-07 16:39:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1707. [2019-12-07 16:39:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-12-07 16:39:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1869 transitions. [2019-12-07 16:39:27,175 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1869 transitions. Word has length 202 [2019-12-07 16:39:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:27,175 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1869 transitions. [2019-12-07 16:39:27,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:39:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1869 transitions. [2019-12-07 16:39:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-12-07 16:39:27,178 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:39:27,178 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:39:27,179 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:39:27,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:39:27,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1247188405, now seen corresponding path program 1 times [2019-12-07 16:39:27,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:39:27,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640072574] [2019-12-07 16:39:27,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:39:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 205 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-12-07 16:39:27,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640072574] [2019-12-07 16:39:27,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799081500] [2019-12-07 16:39:27,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/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 [2019-12-07 16:39:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:39:27,398 INFO L264 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:39:27,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:39:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-12-07 16:39:27,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 16:39:27,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-12-07 16:39:27,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051243814] [2019-12-07 16:39:27,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:39:27,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:39:27,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:39:27,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:39:27,480 INFO L87 Difference]: Start difference. First operand 1707 states and 1869 transitions. Second operand 3 states. [2019-12-07 16:39:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:39:27,756 INFO L93 Difference]: Finished difference Result 1707 states and 1869 transitions. [2019-12-07 16:39:27,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:39:27,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-12-07 16:39:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:39:27,757 INFO L225 Difference]: With dead ends: 1707 [2019-12-07 16:39:27,757 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:39:27,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:39:27,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:39:27,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:39:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:39:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:39:27,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 231 [2019-12-07 16:39:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:39:27,760 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:39:27,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:39:27,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:39:27,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:39:27,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:39:27,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,100 INFO L246 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-12-07 16:39:28,101 INFO L246 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2019-12-07 16:39:28,102 INFO L246 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-12-07 16:39:28,103 INFO L246 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2019-12-07 16:39:28,104 INFO L246 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L242 CegarLoopResult]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,105 INFO L246 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L249 CegarLoopResult]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,106 INFO L246 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,107 INFO L246 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-12-07 16:39:28,108 INFO L246 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L242 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2019-12-07 16:39:28,109 INFO L246 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:39:28,110 INFO L246 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-12-07 16:39:28,111 INFO L246 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-12-07 16:39:28,112 INFO L246 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2019-12-07 16:39:28,113 INFO L246 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2019-12-07 16:39:28,114 INFO L246 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2019-12-07 16:39:28,115 INFO L246 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2019-12-07 16:39:28,115 INFO L246 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-12-07 16:39:28,115 INFO L246 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-12-07 16:39:28,115 INFO L246 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-12-07 16:39:28,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:39:28 BoogieIcfgContainer [2019-12-07 16:39:28,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:39:28,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:39:28,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:39:28,129 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:39:28,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:39:22" (3/4) ... [2019-12-07 16:39:28,131 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:39:28,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 16:39:28,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:39:28,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ebbe255-943c-4b6f-a3e4-348da4204459/bin/uautomizer/witness.graphml [2019-12-07 16:39:28,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:39:28,268 INFO L168 Benchmark]: Toolchain (without parser) took 6682.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 927.3 MB in the beginning and 990.5 MB in the end (delta: -63.2 MB). Peak memory consumption was 155.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,269 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:39:28,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,269 INFO L168 Benchmark]: Boogie Preprocessor took 40.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:39:28,270 INFO L168 Benchmark]: RCFGBuilder took 631.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 943.1 MB in the end (delta: 111.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,270 INFO L168 Benchmark]: TraceAbstraction took 5450.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.1 MB in the beginning and 1.0 GB in the end (delta: -74.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,270 INFO L168 Benchmark]: Witness Printer took 137.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 990.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:39:28,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 631.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 943.1 MB in the end (delta: 111.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5450.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.1 MB in the beginning and 1.0 GB in the end (delta: -74.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * Witness Printer took 137.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 990.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 506]: 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: 30]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 5.2s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 724 SDtfs, 1756 SDslu, 87 SDs, 0 SdLazy, 4163 SolverSat, 643 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1053 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 61 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1565 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 1748 NumberOfCodeBlocks, 1748 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 651070 SizeOfPredicates, 1 NumberOfNonLiveVariables, 430 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1401/1428 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...