./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51c32a91c699292d3a71549ca427833cc8b88f69 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:06,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:06,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:06,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:06,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:06,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:06,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:06,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:06,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:06,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:06,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:06,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:06,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:06,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:06,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:06,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:06,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:06,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:06,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:06,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:06,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:06,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:06,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:06,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:06,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:06,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:06,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:06,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:06,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:06,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:06,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:06,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:06,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:06,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:06,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:06,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:06,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:06,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:06,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:06,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:06,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:06,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:06,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:06,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:06,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:06,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:06,799 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:06,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:06,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:06,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:06,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:06,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:06,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:06,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:06,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:06,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:06,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:06,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:06,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:06,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:06,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:06,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:06,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:06,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:06,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:06,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:06,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:06,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:06,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:06,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:06,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:06,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c32a91c699292d3a71549ca427833cc8b88f69 [2020-11-28 03:08:07,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:07,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:07,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:07,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:07,151 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:07,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2020-11-28 03:08:07,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/data/eaeb37036/f1814bc2bd2f433bb7eb9e1b893cada6/FLAG12c7cefd9 [2020-11-28 03:08:07,855 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:07,856 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2020-11-28 03:08:07,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/data/eaeb37036/f1814bc2bd2f433bb7eb9e1b893cada6/FLAG12c7cefd9 [2020-11-28 03:08:08,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/data/eaeb37036/f1814bc2bd2f433bb7eb9e1b893cada6 [2020-11-28 03:08:08,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:08,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:08,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:08,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:08,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:08,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2884563a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08, skipping insertion in model container [2020-11-28 03:08:08,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:08,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:08,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:08,495 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:08,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:08,581 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:08,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08 WrapperNode [2020-11-28 03:08:08,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:08,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:08,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:08,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:08,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:08,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:08,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:08,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:08,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:08,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:08,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:08,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:08,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:09,045 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:09,912 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-28 03:08:09,913 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-28 03:08:09,923 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:09,923 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:08:09,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09 BoogieIcfgContainer [2020-11-28 03:08:09,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:09,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:09,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:09,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:09,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:08" (1/3) ... [2020-11-28 03:08:09,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfc3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:09, skipping insertion in model container [2020-11-28 03:08:09,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08" (2/3) ... [2020-11-28 03:08:09,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfc3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:09, skipping insertion in model container [2020-11-28 03:08:09,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09" (3/3) ... [2020-11-28 03:08:09,935 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-1.c [2020-11-28 03:08:09,948 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:09,953 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:09,966 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:09,996 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:09,997 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:09,997 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:09,997 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:09,997 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:09,997 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:09,997 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:09,998 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-11-28 03:08:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:08:10,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:10,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:10,026 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:10,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-11-28 03:08:10,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:10,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304341953] [2020-11-28 03:08:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:10,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304341953] [2020-11-28 03:08:10,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:10,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:10,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998007405] [2020-11-28 03:08:10,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:10,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:10,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:10,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:10,335 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-28 03:08:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:10,676 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-11-28 03:08:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:10,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:08:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:10,691 INFO L225 Difference]: With dead ends: 253 [2020-11-28 03:08:10,691 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:08:10,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:08:10,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-28 03:08:10,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:08:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-11-28 03:08:10,789 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-11-28 03:08:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:10,791 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-11-28 03:08:10,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-11-28 03:08:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:08:10,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:10,796 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:08:10,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:10,797 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:10,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-11-28 03:08:10,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:10,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428079121] [2020-11-28 03:08:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:10,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428079121] [2020-11-28 03:08:10,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:10,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:10,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958688749] [2020-11-28 03:08:10,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:10,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:10,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:10,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:10,963 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-11-28 03:08:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:11,189 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-11-28 03:08:11,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:11,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-28 03:08:11,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:11,192 INFO L225 Difference]: With dead ends: 238 [2020-11-28 03:08:11,193 INFO L226 Difference]: Without dead ends: 133 [2020-11-28 03:08:11,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-28 03:08:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-11-28 03:08:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-28 03:08:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-11-28 03:08:11,223 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-11-28 03:08:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:11,224 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-11-28 03:08:11,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-11-28 03:08:11,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:08:11,231 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:11,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-28 03:08:11,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:08:11,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-11-28 03:08:11,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:11,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27804140] [2020-11-28 03:08:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:08:11,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27804140] [2020-11-28 03:08:11,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:11,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:11,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904319065] [2020-11-28 03:08:11,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:11,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:11,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:11,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,389 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-11-28 03:08:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:11,658 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2020-11-28 03:08:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:11,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:08:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:11,661 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:08:11,662 INFO L226 Difference]: Without dead ends: 151 [2020-11-28 03:08:11,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-11-28 03:08:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-11-28 03:08:11,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-28 03:08:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-11-28 03:08:11,676 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-11-28 03:08:11,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:11,677 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-11-28 03:08:11,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-11-28 03:08:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:08:11,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:11,679 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:11,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:08:11,680 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:11,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:11,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1231505257, now seen corresponding path program 1 times [2020-11-28 03:08:11,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:11,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012043458] [2020-11-28 03:08:11,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:08:11,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012043458] [2020-11-28 03:08:11,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:11,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:11,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844120303] [2020-11-28 03:08:11,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:11,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:11,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:11,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,790 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-11-28 03:08:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:12,103 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-11-28 03:08:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:12,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:08:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:12,106 INFO L225 Difference]: With dead ends: 335 [2020-11-28 03:08:12,106 INFO L226 Difference]: Without dead ends: 197 [2020-11-28 03:08:12,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-28 03:08:12,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-11-28 03:08:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-28 03:08:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-11-28 03:08:12,118 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-11-28 03:08:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:12,119 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-11-28 03:08:12,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:12,119 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-11-28 03:08:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:08:12,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:12,121 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:12,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:08:12,122 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1258023705, now seen corresponding path program 1 times [2020-11-28 03:08:12,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:12,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382721383] [2020-11-28 03:08:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:08:12,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382721383] [2020-11-28 03:08:12,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:12,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:12,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176340185] [2020-11-28 03:08:12,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:12,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:12,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:12,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,234 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-11-28 03:08:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:12,463 INFO L93 Difference]: Finished difference Result 391 states and 557 transitions. [2020-11-28 03:08:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:12,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:08:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:12,466 INFO L225 Difference]: With dead ends: 391 [2020-11-28 03:08:12,466 INFO L226 Difference]: Without dead ends: 213 [2020-11-28 03:08:12,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-28 03:08:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2020-11-28 03:08:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-28 03:08:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-11-28 03:08:12,501 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-11-28 03:08:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:12,502 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-11-28 03:08:12,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-11-28 03:08:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-28 03:08:12,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:12,505 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:12,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:08:12,505 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:12,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1378844437, now seen corresponding path program 1 times [2020-11-28 03:08:12,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:12,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688158474] [2020-11-28 03:08:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-28 03:08:12,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688158474] [2020-11-28 03:08:12,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:12,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:12,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571687772] [2020-11-28 03:08:12,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:12,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:12,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:12,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,639 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-11-28 03:08:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:12,878 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-11-28 03:08:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:12,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-28 03:08:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:12,881 INFO L225 Difference]: With dead ends: 428 [2020-11-28 03:08:12,881 INFO L226 Difference]: Without dead ends: 231 [2020-11-28 03:08:12,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-28 03:08:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-11-28 03:08:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-28 03:08:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-11-28 03:08:12,900 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-11-28 03:08:12,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:12,901 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-11-28 03:08:12,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-11-28 03:08:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 03:08:12,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:12,912 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:12,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:08:12,913 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:12,919 INFO L82 PathProgramCache]: Analyzing trace with hash 311084899, now seen corresponding path program 1 times [2020-11-28 03:08:12,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:12,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453495309] [2020-11-28 03:08:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:08:13,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453495309] [2020-11-28 03:08:13,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919494326] [2020-11-28 03:08:13,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,045 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-11-28 03:08:13,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,114 INFO L93 Difference]: Finished difference Result 660 states and 910 transitions. [2020-11-28 03:08:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-28 03:08:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,121 INFO L225 Difference]: With dead ends: 660 [2020-11-28 03:08:13,122 INFO L226 Difference]: Without dead ends: 442 [2020-11-28 03:08:13,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-11-28 03:08:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-11-28 03:08:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-11-28 03:08:13,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2020-11-28 03:08:13,163 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 105 [2020-11-28 03:08:13,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,164 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2020-11-28 03:08:13,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2020-11-28 03:08:13,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 03:08:13,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:13,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:08:13,171 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,172 INFO L82 PathProgramCache]: Analyzing trace with hash 990357153, now seen corresponding path program 1 times [2020-11-28 03:08:13,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199371034] [2020-11-28 03:08:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-28 03:08:13,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199371034] [2020-11-28 03:08:13,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332631750] [2020-11-28 03:08:13,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,266 INFO L87 Difference]: Start difference. First operand 442 states and 605 transitions. Second operand 3 states. [2020-11-28 03:08:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,316 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2020-11-28 03:08:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-28 03:08:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,321 INFO L225 Difference]: With dead ends: 895 [2020-11-28 03:08:13,322 INFO L226 Difference]: Without dead ends: 463 [2020-11-28 03:08:13,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-11-28 03:08:13,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2020-11-28 03:08:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-11-28 03:08:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 632 transitions. [2020-11-28 03:08:13,343 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 632 transitions. Word has length 105 [2020-11-28 03:08:13,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,345 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 632 transitions. [2020-11-28 03:08:13,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 632 transitions. [2020-11-28 03:08:13,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 03:08:13,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,348 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:13,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:08:13,348 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1829390815, now seen corresponding path program 1 times [2020-11-28 03:08:13,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248570935] [2020-11-28 03:08:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-28 03:08:13,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248570935] [2020-11-28 03:08:13,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14450883] [2020-11-28 03:08:13,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,446 INFO L87 Difference]: Start difference. First operand 463 states and 632 transitions. Second operand 3 states. [2020-11-28 03:08:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,479 INFO L93 Difference]: Finished difference Result 943 states and 1285 transitions. [2020-11-28 03:08:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-28 03:08:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,484 INFO L225 Difference]: With dead ends: 943 [2020-11-28 03:08:13,484 INFO L226 Difference]: Without dead ends: 490 [2020-11-28 03:08:13,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-11-28 03:08:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-11-28 03:08:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-11-28 03:08:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2020-11-28 03:08:13,503 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 666 transitions. Word has length 105 [2020-11-28 03:08:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,503 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 666 transitions. [2020-11-28 03:08:13,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 666 transitions. [2020-11-28 03:08:13,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-28 03:08:13,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,506 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:13,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:08:13,507 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,507 INFO L82 PathProgramCache]: Analyzing trace with hash -915547054, now seen corresponding path program 1 times [2020-11-28 03:08:13,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553434197] [2020-11-28 03:08:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-28 03:08:13,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553434197] [2020-11-28 03:08:13,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210769236] [2020-11-28 03:08:13,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,571 INFO L87 Difference]: Start difference. First operand 490 states and 666 transitions. Second operand 3 states. [2020-11-28 03:08:13,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,634 INFO L93 Difference]: Finished difference Result 708 states and 966 transitions. [2020-11-28 03:08:13,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-28 03:08:13,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,641 INFO L225 Difference]: With dead ends: 708 [2020-11-28 03:08:13,641 INFO L226 Difference]: Without dead ends: 706 [2020-11-28 03:08:13,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-28 03:08:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-11-28 03:08:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-11-28 03:08:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 964 transitions. [2020-11-28 03:08:13,667 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 964 transitions. Word has length 107 [2020-11-28 03:08:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,668 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 964 transitions. [2020-11-28 03:08:13,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 964 transitions. [2020-11-28 03:08:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-28 03:08:13,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,672 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:13,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:08:13,672 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1430305885, now seen corresponding path program 1 times [2020-11-28 03:08:13,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819853703] [2020-11-28 03:08:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-28 03:08:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819853703] [2020-11-28 03:08:13,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044916440] [2020-11-28 03:08:13,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,744 INFO L87 Difference]: Start difference. First operand 706 states and 964 transitions. Second operand 3 states. [2020-11-28 03:08:14,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,048 INFO L93 Difference]: Finished difference Result 1528 states and 2147 transitions. [2020-11-28 03:08:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-28 03:08:14,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,056 INFO L225 Difference]: With dead ends: 1528 [2020-11-28 03:08:14,056 INFO L226 Difference]: Without dead ends: 856 [2020-11-28 03:08:14,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-11-28 03:08:14,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2020-11-28 03:08:14,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-11-28 03:08:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1153 transitions. [2020-11-28 03:08:14,092 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1153 transitions. Word has length 147 [2020-11-28 03:08:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,093 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1153 transitions. [2020-11-28 03:08:14,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1153 transitions. [2020-11-28 03:08:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-28 03:08:14,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,098 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 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] [2020-11-28 03:08:14,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:08:14,098 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1346631412, now seen corresponding path program 1 times [2020-11-28 03:08:14,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122967660] [2020-11-28 03:08:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-28 03:08:14,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122967660] [2020-11-28 03:08:14,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:14,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:14,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112489130] [2020-11-28 03:08:14,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:14,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:14,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:14,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,204 INFO L87 Difference]: Start difference. First operand 823 states and 1153 transitions. Second operand 3 states. [2020-11-28 03:08:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,454 INFO L93 Difference]: Finished difference Result 1689 states and 2365 transitions. [2020-11-28 03:08:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-11-28 03:08:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,462 INFO L225 Difference]: With dead ends: 1689 [2020-11-28 03:08:14,462 INFO L226 Difference]: Without dead ends: 903 [2020-11-28 03:08:14,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-11-28 03:08:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 892. [2020-11-28 03:08:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-11-28 03:08:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1237 transitions. [2020-11-28 03:08:14,495 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1237 transitions. Word has length 183 [2020-11-28 03:08:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,495 INFO L481 AbstractCegarLoop]: Abstraction has 892 states and 1237 transitions. [2020-11-28 03:08:14,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1237 transitions. [2020-11-28 03:08:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-28 03:08:14,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,500 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 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] [2020-11-28 03:08:14,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:08:14,501 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,501 INFO L82 PathProgramCache]: Analyzing trace with hash 880338370, now seen corresponding path program 1 times [2020-11-28 03:08:14,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505154744] [2020-11-28 03:08:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-11-28 03:08:14,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505154744] [2020-11-28 03:08:14,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:14,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:14,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213258909] [2020-11-28 03:08:14,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:14,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:14,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:14,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,610 INFO L87 Difference]: Start difference. First operand 892 states and 1237 transitions. Second operand 3 states. [2020-11-28 03:08:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,845 INFO L93 Difference]: Finished difference Result 1831 states and 2546 transitions. [2020-11-28 03:08:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-11-28 03:08:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,856 INFO L225 Difference]: With dead ends: 1831 [2020-11-28 03:08:14,856 INFO L226 Difference]: Without dead ends: 976 [2020-11-28 03:08:14,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-11-28 03:08:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 967. [2020-11-28 03:08:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-11-28 03:08:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1327 transitions. [2020-11-28 03:08:14,895 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1327 transitions. Word has length 204 [2020-11-28 03:08:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,897 INFO L481 AbstractCegarLoop]: Abstraction has 967 states and 1327 transitions. [2020-11-28 03:08:14,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1327 transitions. [2020-11-28 03:08:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-28 03:08:14,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,903 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 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] [2020-11-28 03:08:14,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:08:14,904 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1998340689, now seen corresponding path program 1 times [2020-11-28 03:08:14,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737176271] [2020-11-28 03:08:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-11-28 03:08:15,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737176271] [2020-11-28 03:08:15,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:15,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:15,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478457904] [2020-11-28 03:08:15,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:15,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:15,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:15,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,028 INFO L87 Difference]: Start difference. First operand 967 states and 1327 transitions. Second operand 3 states. [2020-11-28 03:08:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,284 INFO L93 Difference]: Finished difference Result 1987 states and 2735 transitions. [2020-11-28 03:08:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-11-28 03:08:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,292 INFO L225 Difference]: With dead ends: 1987 [2020-11-28 03:08:15,292 INFO L226 Difference]: Without dead ends: 1057 [2020-11-28 03:08:15,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-11-28 03:08:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1051. [2020-11-28 03:08:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-11-28 03:08:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1426 transitions. [2020-11-28 03:08:15,329 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1426 transitions. Word has length 228 [2020-11-28 03:08:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:15,330 INFO L481 AbstractCegarLoop]: Abstraction has 1051 states and 1426 transitions. [2020-11-28 03:08:15,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1426 transitions. [2020-11-28 03:08:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-28 03:08:15,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,335 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 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] [2020-11-28 03:08:15,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:08:15,336 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,336 INFO L82 PathProgramCache]: Analyzing trace with hash -967299791, now seen corresponding path program 1 times [2020-11-28 03:08:15,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:15,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661566503] [2020-11-28 03:08:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-11-28 03:08:15,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661566503] [2020-11-28 03:08:15,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:15,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:15,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820744378] [2020-11-28 03:08:15,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:15,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:15,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,453 INFO L87 Difference]: Start difference. First operand 1051 states and 1426 transitions. Second operand 3 states. [2020-11-28 03:08:15,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,698 INFO L93 Difference]: Finished difference Result 2167 states and 2960 transitions. [2020-11-28 03:08:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-11-28 03:08:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,707 INFO L225 Difference]: With dead ends: 2167 [2020-11-28 03:08:15,707 INFO L226 Difference]: Without dead ends: 1153 [2020-11-28 03:08:15,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-11-28 03:08:15,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1144. [2020-11-28 03:08:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2020-11-28 03:08:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1534 transitions. [2020-11-28 03:08:15,748 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1534 transitions. Word has length 228 [2020-11-28 03:08:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:15,748 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 1534 transitions. [2020-11-28 03:08:15,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1534 transitions. [2020-11-28 03:08:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-11-28 03:08:15,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,755 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:15,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:08:15,755 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1465419185, now seen corresponding path program 1 times [2020-11-28 03:08:15,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:15,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097783460] [2020-11-28 03:08:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2020-11-28 03:08:15,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097783460] [2020-11-28 03:08:15,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:15,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:15,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824309865] [2020-11-28 03:08:15,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:15,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:15,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:15,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,902 INFO L87 Difference]: Start difference. First operand 1144 states and 1534 transitions. Second operand 3 states. [2020-11-28 03:08:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,952 INFO L93 Difference]: Finished difference Result 3355 states and 4503 transitions. [2020-11-28 03:08:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-11-28 03:08:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,968 INFO L225 Difference]: With dead ends: 3355 [2020-11-28 03:08:15,968 INFO L226 Difference]: Without dead ends: 2248 [2020-11-28 03:08:15,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-11-28 03:08:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2246. [2020-11-28 03:08:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-11-28 03:08:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3013 transitions. [2020-11-28 03:08:16,048 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3013 transitions. Word has length 258 [2020-11-28 03:08:16,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:16,048 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 3013 transitions. [2020-11-28 03:08:16,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3013 transitions. [2020-11-28 03:08:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-11-28 03:08:16,056 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:16,056 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:16,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:08:16,057 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:16,058 INFO L82 PathProgramCache]: Analyzing trace with hash -434378287, now seen corresponding path program 1 times [2020-11-28 03:08:16,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:16,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123921041] [2020-11-28 03:08:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-11-28 03:08:16,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123921041] [2020-11-28 03:08:16,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:16,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762141909] [2020-11-28 03:08:16,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:16,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:16,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:16,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,223 INFO L87 Difference]: Start difference. First operand 2246 states and 3013 transitions. Second operand 3 states. [2020-11-28 03:08:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:16,507 INFO L93 Difference]: Finished difference Result 4680 states and 6329 transitions. [2020-11-28 03:08:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:16,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-11-28 03:08:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:16,525 INFO L225 Difference]: With dead ends: 4680 [2020-11-28 03:08:16,525 INFO L226 Difference]: Without dead ends: 2471 [2020-11-28 03:08:16,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2020-11-28 03:08:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2459. [2020-11-28 03:08:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2459 states. [2020-11-28 03:08:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3256 transitions. [2020-11-28 03:08:16,619 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3256 transitions. Word has length 258 [2020-11-28 03:08:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:16,619 INFO L481 AbstractCegarLoop]: Abstraction has 2459 states and 3256 transitions. [2020-11-28 03:08:16,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3256 transitions. [2020-11-28 03:08:16,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-11-28 03:08:16,628 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:16,628 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:16,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:08:16,629 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1948571271, now seen corresponding path program 1 times [2020-11-28 03:08:16,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:16,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765488586] [2020-11-28 03:08:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2020-11-28 03:08:16,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765488586] [2020-11-28 03:08:16,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:16,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759317865] [2020-11-28 03:08:16,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:16,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:16,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:16,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,799 INFO L87 Difference]: Start difference. First operand 2459 states and 3256 transitions. Second operand 3 states. [2020-11-28 03:08:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:17,071 INFO L93 Difference]: Finished difference Result 4992 states and 6632 transitions. [2020-11-28 03:08:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:17,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2020-11-28 03:08:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:17,090 INFO L225 Difference]: With dead ends: 4992 [2020-11-28 03:08:17,090 INFO L226 Difference]: Without dead ends: 2570 [2020-11-28 03:08:17,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2020-11-28 03:08:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2558. [2020-11-28 03:08:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2558 states. [2020-11-28 03:08:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3370 transitions. [2020-11-28 03:08:17,209 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3370 transitions. Word has length 282 [2020-11-28 03:08:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:17,209 INFO L481 AbstractCegarLoop]: Abstraction has 2558 states and 3370 transitions. [2020-11-28 03:08:17,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3370 transitions. [2020-11-28 03:08:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-28 03:08:17,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:17,219 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:17,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:08:17,219 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:17,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1124753462, now seen corresponding path program 1 times [2020-11-28 03:08:17,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:17,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918062402] [2020-11-28 03:08:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-28 03:08:17,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918062402] [2020-11-28 03:08:17,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:17,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:17,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402190536] [2020-11-28 03:08:17,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:17,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:17,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:17,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:17,382 INFO L87 Difference]: Start difference. First operand 2558 states and 3370 transitions. Second operand 3 states. [2020-11-28 03:08:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:17,694 INFO L93 Difference]: Finished difference Result 5379 states and 7220 transitions. [2020-11-28 03:08:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:17,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-11-28 03:08:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:17,714 INFO L225 Difference]: With dead ends: 5379 [2020-11-28 03:08:17,714 INFO L226 Difference]: Without dead ends: 2858 [2020-11-28 03:08:17,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:17,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2020-11-28 03:08:17,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2798. [2020-11-28 03:08:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2020-11-28 03:08:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3652 transitions. [2020-11-28 03:08:17,831 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3652 transitions. Word has length 293 [2020-11-28 03:08:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:17,832 INFO L481 AbstractCegarLoop]: Abstraction has 2798 states and 3652 transitions. [2020-11-28 03:08:17,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3652 transitions. [2020-11-28 03:08:17,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-28 03:08:17,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:17,841 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:17,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:08:17,842 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:17,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:17,843 INFO L82 PathProgramCache]: Analyzing trace with hash 495610836, now seen corresponding path program 1 times [2020-11-28 03:08:17,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:17,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906845227] [2020-11-28 03:08:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-11-28 03:08:18,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906845227] [2020-11-28 03:08:18,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:18,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:18,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865443171] [2020-11-28 03:08:18,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:18,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:18,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:18,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:18,059 INFO L87 Difference]: Start difference. First operand 2798 states and 3652 transitions. Second operand 3 states. [2020-11-28 03:08:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:18,383 INFO L93 Difference]: Finished difference Result 5643 states and 7358 transitions. [2020-11-28 03:08:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:18,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-11-28 03:08:18,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:18,402 INFO L225 Difference]: With dead ends: 5643 [2020-11-28 03:08:18,403 INFO L226 Difference]: Without dead ends: 2864 [2020-11-28 03:08:18,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2020-11-28 03:08:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2792. [2020-11-28 03:08:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2020-11-28 03:08:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3616 transitions. [2020-11-28 03:08:18,510 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3616 transitions. Word has length 301 [2020-11-28 03:08:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:18,510 INFO L481 AbstractCegarLoop]: Abstraction has 2792 states and 3616 transitions. [2020-11-28 03:08:18,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3616 transitions. [2020-11-28 03:08:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-11-28 03:08:18,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:18,521 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-11-28 03:08:18,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 03:08:18,521 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash -870156213, now seen corresponding path program 1 times [2020-11-28 03:08:18,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:18,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487898360] [2020-11-28 03:08:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-28 03:08:18,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487898360] [2020-11-28 03:08:18,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43373317] [2020-11-28 03:08:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:18,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:18,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-28 03:08:19,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:19,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:19,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859818845] [2020-11-28 03:08:19,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:19,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:19,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:19,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:19,191 INFO L87 Difference]: Start difference. First operand 2792 states and 3616 transitions. Second operand 4 states. [2020-11-28 03:08:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:20,001 INFO L93 Difference]: Finished difference Result 8410 states and 10878 transitions. [2020-11-28 03:08:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:08:20,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-11-28 03:08:20,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:20,058 INFO L225 Difference]: With dead ends: 8410 [2020-11-28 03:08:20,059 INFO L226 Difference]: Without dead ends: 5649 [2020-11-28 03:08:20,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2020-11-28 03:08:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 3680. [2020-11-28 03:08:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3680 states. [2020-11-28 03:08:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4716 transitions. [2020-11-28 03:08:20,220 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4716 transitions. Word has length 332 [2020-11-28 03:08:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:20,221 INFO L481 AbstractCegarLoop]: Abstraction has 3680 states and 4716 transitions. [2020-11-28 03:08:20,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4716 transitions. [2020-11-28 03:08:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-11-28 03:08:20,233 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:20,233 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-11-28 03:08:20,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-28 03:08:20,455 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:20,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:20,456 INFO L82 PathProgramCache]: Analyzing trace with hash -734234391, now seen corresponding path program 1 times [2020-11-28 03:08:20,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:20,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752486391] [2020-11-28 03:08:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 770 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2020-11-28 03:08:20,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752486391] [2020-11-28 03:08:20,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:20,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:20,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887934671] [2020-11-28 03:08:20,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:20,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:20,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:20,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:20,742 INFO L87 Difference]: Start difference. First operand 3680 states and 4716 transitions. Second operand 3 states. [2020-11-28 03:08:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:20,855 INFO L93 Difference]: Finished difference Result 9682 states and 12466 transitions. [2020-11-28 03:08:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:20,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2020-11-28 03:08:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:20,872 INFO L225 Difference]: With dead ends: 9682 [2020-11-28 03:08:20,873 INFO L226 Difference]: Without dead ends: 6039 [2020-11-28 03:08:20,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:20,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2020-11-28 03:08:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5695. [2020-11-28 03:08:21,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5695 states. [2020-11-28 03:08:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7327 transitions. [2020-11-28 03:08:21,094 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7327 transitions. Word has length 333 [2020-11-28 03:08:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:21,095 INFO L481 AbstractCegarLoop]: Abstraction has 5695 states and 7327 transitions. [2020-11-28 03:08:21,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7327 transitions. [2020-11-28 03:08:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-11-28 03:08:21,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:21,110 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:21,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-28 03:08:21,110 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:21,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:21,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1600541490, now seen corresponding path program 1 times [2020-11-28 03:08:21,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:21,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187321761] [2020-11-28 03:08:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:21,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187321761] [2020-11-28 03:08:21,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:21,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:21,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101242118] [2020-11-28 03:08:21,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:21,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:21,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:21,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:21,357 INFO L87 Difference]: Start difference. First operand 5695 states and 7327 transitions. Second operand 3 states. [2020-11-28 03:08:21,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:21,866 INFO L93 Difference]: Finished difference Result 11959 states and 15320 transitions. [2020-11-28 03:08:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:21,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-11-28 03:08:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:21,882 INFO L225 Difference]: With dead ends: 11959 [2020-11-28 03:08:21,882 INFO L226 Difference]: Without dead ends: 6301 [2020-11-28 03:08:21,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2020-11-28 03:08:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 5869. [2020-11-28 03:08:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-11-28 03:08:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 7561 transitions. [2020-11-28 03:08:22,087 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 7561 transitions. Word has length 338 [2020-11-28 03:08:22,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:22,088 INFO L481 AbstractCegarLoop]: Abstraction has 5869 states and 7561 transitions. [2020-11-28 03:08:22,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 7561 transitions. [2020-11-28 03:08:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-11-28 03:08:22,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:22,106 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:22,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-28 03:08:22,106 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:22,107 INFO L82 PathProgramCache]: Analyzing trace with hash 296800678, now seen corresponding path program 1 times [2020-11-28 03:08:22,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:22,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941215669] [2020-11-28 03:08:22,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:22,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941215669] [2020-11-28 03:08:22,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459139165] [2020-11-28 03:08:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:22,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:22,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:22,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:22,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:22,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005404542] [2020-11-28 03:08:22,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:22,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:22,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:22,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:22,698 INFO L87 Difference]: Start difference. First operand 5869 states and 7561 transitions. Second operand 4 states. [2020-11-28 03:08:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:23,296 INFO L93 Difference]: Finished difference Result 13204 states and 16946 transitions. [2020-11-28 03:08:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:23,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 376 [2020-11-28 03:08:23,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:23,314 INFO L225 Difference]: With dead ends: 13204 [2020-11-28 03:08:23,314 INFO L226 Difference]: Without dead ends: 7359 [2020-11-28 03:08:23,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2020-11-28 03:08:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 5989. [2020-11-28 03:08:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5989 states. [2020-11-28 03:08:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 7642 transitions. [2020-11-28 03:08:23,504 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 7642 transitions. Word has length 376 [2020-11-28 03:08:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:23,505 INFO L481 AbstractCegarLoop]: Abstraction has 5989 states and 7642 transitions. [2020-11-28 03:08:23,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 7642 transitions. [2020-11-28 03:08:23,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-11-28 03:08:23,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:23,521 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:23,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-28 03:08:23,747 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2142183135, now seen corresponding path program 1 times [2020-11-28 03:08:23,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:23,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064917288] [2020-11-28 03:08:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-28 03:08:23,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064917288] [2020-11-28 03:08:23,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:23,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:23,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508542567] [2020-11-28 03:08:23,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:23,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:23,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:23,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:23,958 INFO L87 Difference]: Start difference. First operand 5989 states and 7642 transitions. Second operand 3 states. [2020-11-28 03:08:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:24,262 INFO L93 Difference]: Finished difference Result 11539 states and 14488 transitions. [2020-11-28 03:08:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:24,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 415 [2020-11-28 03:08:24,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:24,272 INFO L225 Difference]: With dead ends: 11539 [2020-11-28 03:08:24,272 INFO L226 Difference]: Without dead ends: 3293 [2020-11-28 03:08:24,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:24,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2020-11-28 03:08:24,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3227. [2020-11-28 03:08:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3227 states. [2020-11-28 03:08:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4073 transitions. [2020-11-28 03:08:24,411 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4073 transitions. Word has length 415 [2020-11-28 03:08:24,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:24,411 INFO L481 AbstractCegarLoop]: Abstraction has 3227 states and 4073 transitions. [2020-11-28 03:08:24,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4073 transitions. [2020-11-28 03:08:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-11-28 03:08:24,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:24,420 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:24,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-28 03:08:24,420 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash -2025530628, now seen corresponding path program 1 times [2020-11-28 03:08:24,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:24,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492982295] [2020-11-28 03:08:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2020-11-28 03:08:24,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492982295] [2020-11-28 03:08:24,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350491075] [2020-11-28 03:08:24,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:24,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:24,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2020-11-28 03:08:25,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:25,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:25,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510458623] [2020-11-28 03:08:25,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:25,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:25,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:25,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:25,324 INFO L87 Difference]: Start difference. First operand 3227 states and 4073 transitions. Second operand 4 states. [2020-11-28 03:08:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:25,680 INFO L93 Difference]: Finished difference Result 3861 states and 4882 transitions. [2020-11-28 03:08:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:25,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 482 [2020-11-28 03:08:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:25,682 INFO L225 Difference]: With dead ends: 3861 [2020-11-28 03:08:25,682 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:08:25,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:08:25,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:08:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:08:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:08:25,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 482 [2020-11-28 03:08:25,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:25,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:08:25,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:08:25,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:08:25,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-28 03:08:25,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:08:26,481 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 76 [2020-11-28 03:08:26,794 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 17 [2020-11-28 03:08:27,026 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 16 [2020-11-28 03:08:27,197 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 17 [2020-11-28 03:08:27,337 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-11-28 03:08:27,800 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-11-28 03:08:27,993 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-11-28 03:08:28,102 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 17 [2020-11-28 03:08:28,105 INFO L274 CegarLoopResult]: For program point L531(lines 531 535) no Hoare annotation was computed. [2020-11-28 03:08:28,105 INFO L274 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-11-28 03:08:28,105 INFO L274 CegarLoopResult]: For program point L267-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:08:28,105 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:08:28,106 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-11-28 03:08:28,106 INFO L274 CegarLoopResult]: For program point L334(lines 334 336) no Hoare annotation was computed. [2020-11-28 03:08:28,106 INFO L277 CegarLoopResult]: At program point L202(lines 201 489) the Hoare annotation is: true [2020-11-28 03:08:28,106 INFO L274 CegarLoopResult]: For program point L169(lines 169 499) no Hoare annotation was computed. [2020-11-28 03:08:28,106 INFO L274 CegarLoopResult]: For program point L136(lines 136 510) no Hoare annotation was computed. [2020-11-28 03:08:28,106 INFO L274 CegarLoopResult]: For program point L103(lines 103 521) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L270 CegarLoopResult]: At program point L170(lines 166 500) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,107 INFO L270 CegarLoopResult]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L436(lines 436 440) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2020-11-28 03:08:28,107 INFO L274 CegarLoopResult]: For program point L172(lines 172 498) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L139(lines 139 509) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L106(lines 106 520) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L270 CegarLoopResult]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L273(lines 273 277) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L240(lines 240 243) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L273-2(lines 273 277) no Hoare annotation was computed. [2020-11-28 03:08:28,108 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L373(lines 373 375) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L270 CegarLoopResult]: At program point L208(lines 106 520) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L175(lines 175 497) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L142(lines 142 508) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L109(lines 109 519) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L270 CegarLoopResult]: At program point L176(lines 172 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-11-28 03:08:28,109 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2020-11-28 03:08:28,110 INFO L277 CegarLoopResult]: At program point L541(lines 99 542) the Hoare annotation is: true [2020-11-28 03:08:28,110 INFO L274 CegarLoopResult]: For program point L178(lines 178 496) no Hoare annotation was computed. [2020-11-28 03:08:28,110 INFO L274 CegarLoopResult]: For program point L145(lines 145 507) no Hoare annotation was computed. [2020-11-28 03:08:28,110 INFO L274 CegarLoopResult]: For program point L112(lines 112 518) no Hoare annotation was computed. [2020-11-28 03:08:28,110 INFO L270 CegarLoopResult]: At program point L146(lines 142 508) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,110 INFO L274 CegarLoopResult]: For program point L213(lines 213 215) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L181(lines 181 495) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L148(lines 148 506) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L115(lines 115 517) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-11-28 03:08:28,115 INFO L274 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-11-28 03:08:28,116 INFO L274 CegarLoopResult]: For program point L413(lines 413 427) no Hoare annotation was computed. [2020-11-28 03:08:28,116 INFO L274 CegarLoopResult]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2020-11-28 03:08:28,116 INFO L274 CegarLoopResult]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2020-11-28 03:08:28,116 INFO L274 CegarLoopResult]: For program point L314(lines 314 317) no Hoare annotation was computed. [2020-11-28 03:08:28,116 INFO L270 CegarLoopResult]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L546(lines 546 548) no Hoare annotation was computed. [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L349(lines 349 351) no Hoare annotation was computed. [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L184(lines 184 494) no Hoare annotation was computed. [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L151(lines 151 505) no Hoare annotation was computed. [2020-11-28 03:08:28,117 INFO L274 CegarLoopResult]: For program point L118(lines 118 516) no Hoare annotation was computed. [2020-11-28 03:08:28,118 INFO L274 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-11-28 03:08:28,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:08:28,118 INFO L274 CegarLoopResult]: For program point L284(lines 284 298) no Hoare annotation was computed. [2020-11-28 03:08:28,118 INFO L274 CegarLoopResult]: For program point L218(lines 218 221) no Hoare annotation was computed. [2020-11-28 03:08:28,119 INFO L274 CegarLoopResult]: For program point L284-2(lines 284 298) no Hoare annotation was computed. [2020-11-28 03:08:28,119 INFO L270 CegarLoopResult]: At program point L152(lines 148 506) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,119 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-11-28 03:08:28,119 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-28 03:08:28,119 INFO L274 CegarLoopResult]: For program point L252(lines 252 254) no Hoare annotation was computed. [2020-11-28 03:08:28,119 INFO L274 CegarLoopResult]: For program point L252-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:08:28,120 INFO L274 CegarLoopResult]: For program point L451(lines 451 454) no Hoare annotation was computed. [2020-11-28 03:08:28,120 INFO L274 CegarLoopResult]: For program point L187(lines 187 493) no Hoare annotation was computed. [2020-11-28 03:08:28,120 INFO L274 CegarLoopResult]: For program point L154(lines 154 504) no Hoare annotation was computed. [2020-11-28 03:08:28,120 INFO L274 CegarLoopResult]: For program point L121(lines 121 515) no Hoare annotation was computed. [2020-11-28 03:08:28,120 INFO L277 CegarLoopResult]: At program point L551(lines 12 553) the Hoare annotation is: true [2020-11-28 03:08:28,121 INFO L270 CegarLoopResult]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-11-28 03:08:28,121 INFO L270 CegarLoopResult]: At program point L122(lines 118 516) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-28 03:08:28,121 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-11-28 03:08:28,122 INFO L274 CegarLoopResult]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2020-11-28 03:08:28,122 INFO L274 CegarLoopResult]: For program point L288(lines 288 294) no Hoare annotation was computed. [2020-11-28 03:08:28,122 INFO L270 CegarLoopResult]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse9 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse11 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse1) (and .cse0 .cse5 .cse6 .cse2 .cse7) (and .cse8 .cse6) (and .cse3 .cse4 .cse9 .cse7) (and .cse10 .cse5 .cse11 .cse6 .cse7) (and .cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse10 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse11) (and .cse1 .cse8 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse1 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse7))) [2020-11-28 03:08:28,123 INFO L274 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-11-28 03:08:28,123 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:08:28,123 INFO L274 CegarLoopResult]: For program point L190(lines 190 492) no Hoare annotation was computed. [2020-11-28 03:08:28,123 INFO L274 CegarLoopResult]: For program point L157(lines 157 503) no Hoare annotation was computed. [2020-11-28 03:08:28,124 INFO L274 CegarLoopResult]: For program point L124(lines 124 514) no Hoare annotation was computed. [2020-11-28 03:08:28,124 INFO L274 CegarLoopResult]: For program point L389(lines 389 393) no Hoare annotation was computed. [2020-11-28 03:08:28,124 INFO L270 CegarLoopResult]: At program point L323(lines 77 552) the Hoare annotation is: false [2020-11-28 03:08:28,126 INFO L274 CegarLoopResult]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:08:28,126 INFO L274 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-11-28 03:08:28,126 INFO L274 CegarLoopResult]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:08:28,126 INFO L274 CegarLoopResult]: For program point L522(lines 522 538) no Hoare annotation was computed. [2020-11-28 03:08:28,126 INFO L274 CegarLoopResult]: For program point L291(lines 291 293) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L291-2(lines 286 298) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L523(lines 523 537) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L358(lines 358 360) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L226(lines 226 229) no Hoare annotation was computed. [2020-11-28 03:08:28,127 INFO L274 CegarLoopResult]: For program point L193(lines 193 491) no Hoare annotation was computed. [2020-11-28 03:08:28,129 INFO L274 CegarLoopResult]: For program point L160(lines 160 502) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point L127(lines 127 513) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point L524(lines 524 529) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2020-11-28 03:08:28,130 INFO L274 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-11-28 03:08:28,131 INFO L270 CegarLoopResult]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,131 INFO L270 CegarLoopResult]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-28 03:08:28,131 INFO L274 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-11-28 03:08:28,131 INFO L274 CegarLoopResult]: For program point L526(lines 526 528) no Hoare annotation was computed. [2020-11-28 03:08:28,131 INFO L274 CegarLoopResult]: For program point L196(lines 196 490) no Hoare annotation was computed. [2020-11-28 03:08:28,132 INFO L274 CegarLoopResult]: For program point L163(lines 163 501) no Hoare annotation was computed. [2020-11-28 03:08:28,132 INFO L274 CegarLoopResult]: For program point L130(lines 130 512) no Hoare annotation was computed. [2020-11-28 03:08:28,132 INFO L274 CegarLoopResult]: For program point L362(lines 362 367) no Hoare annotation was computed. [2020-11-28 03:08:28,132 INFO L274 CegarLoopResult]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2020-11-28 03:08:28,132 INFO L274 CegarLoopResult]: For program point L230(lines 230 233) no Hoare annotation was computed. [2020-11-28 03:08:28,133 INFO L270 CegarLoopResult]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-11-28 03:08:28,133 INFO L270 CegarLoopResult]: At program point L164(lines 154 504) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:08:28,133 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:08:28,133 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:08:28,133 INFO L274 CegarLoopResult]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2020-11-28 03:08:28,134 INFO L277 CegarLoopResult]: At program point L562(lines 554 564) the Hoare annotation is: true [2020-11-28 03:08:28,134 INFO L274 CegarLoopResult]: For program point L199(lines 199 489) no Hoare annotation was computed. [2020-11-28 03:08:28,134 INFO L274 CegarLoopResult]: For program point L166(lines 166 500) no Hoare annotation was computed. [2020-11-28 03:08:28,134 INFO L274 CegarLoopResult]: For program point L133(lines 133 511) no Hoare annotation was computed. [2020-11-28 03:08:28,134 INFO L274 CegarLoopResult]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2020-11-28 03:08:28,134 INFO L274 CegarLoopResult]: For program point L398(lines 398 401) no Hoare annotation was computed. [2020-11-28 03:08:28,135 INFO L277 CegarLoopResult]: At program point L200(lines 199 489) the Hoare annotation is: true [2020-11-28 03:08:28,135 INFO L270 CegarLoopResult]: At program point L134(lines 130 512) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:08:28,135 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:08:28,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:28 BoogieIcfgContainer [2020-11-28 03:08:28,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:28,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:28,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:28,179 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:28,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09" (3/4) ... [2020-11-28 03:08:28,183 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:08:28,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:08:28,203 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:08:28,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:28,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:28,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_440426bc-263b-4a1e-bfbd-99c14d8c2502/bin/uautomizer/witness.graphml [2020-11-28 03:08:28,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:28,341 INFO L168 Benchmark]: Toolchain (without parser) took 20217.26 ms. Allocated memory was 90.2 MB in the beginning and 1.0 GB in the end (delta: 945.8 MB). Free memory was 64.5 MB in the beginning and 394.9 MB in the end (delta: -330.3 MB). Peak memory consumption was 618.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,342 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.05 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 50.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.15 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 47.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,343 INFO L168 Benchmark]: Boogie Preprocessor took 58.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 45.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,343 INFO L168 Benchmark]: RCFGBuilder took 1193.42 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 45.4 MB in the beginning and 59.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,344 INFO L168 Benchmark]: TraceAbstraction took 18250.22 ms. Allocated memory was 119.5 MB in the beginning and 1.0 GB in the end (delta: 916.5 MB). Free memory was 59.9 MB in the beginning and 404.3 MB in the end (delta: -344.4 MB). Peak memory consumption was 573.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,344 INFO L168 Benchmark]: Witness Printer took 161.61 ms. Allocated memory is still 1.0 GB. Free memory was 404.3 MB in the beginning and 394.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 458.05 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 50.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.15 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 47.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 45.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1193.42 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 45.4 MB in the beginning and 59.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18250.22 ms. Allocated memory was 119.5 MB in the beginning and 1.0 GB in the end (delta: 916.5 MB). Free memory was 59.9 MB in the beginning and 404.3 MB in the end (delta: -344.4 MB). Peak memory consumption was 573.9 MB. Max. memory is 16.1 GB. * Witness Printer took 161.61 ms. Allocated memory is still 1.0 GB. Free memory was 404.3 MB in the beginning and 394.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (s__state <= 4528 && blastFlag == 0) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state <= 4528 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && blastFlag <= 4) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.9s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4934 SDtfs, 1570 SDslu, 2831 SDs, 0 SdLazy, 2491 SolverSat, 457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1274 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5989occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 26 MinimizatonAttempts, 4432 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 177 NumberOfFragments, 434 HoareAnnotationTreeSize, 22 FomulaSimplifications, 8973 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2102 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 6603 NumberOfCodeBlocks, 6603 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6574 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522458 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2139 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 23541/23607 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...