./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.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_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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 b4872de39e95e4bc5ccbeb0f1761dba68e05980d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:14:59,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:59,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:59,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:59,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:59,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:59,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:59,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:59,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:59,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:59,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:59,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:59,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:59,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:59,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:59,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:59,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:59,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:59,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:59,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:59,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:59,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:59,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:59,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:59,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:59,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:59,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:59,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:59,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:59,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:59,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:59,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:59,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:59,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:59,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:59,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:59,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:59,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:59,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:59,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:59,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:59,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:59,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:59,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:59,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:59,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:59,622 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:59,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:59,622 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:59,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:59,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:59,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:59,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:59,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:59,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:59,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:59,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:59,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:59,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:59,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:59,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:59,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:59,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:59,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:59,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:59,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:59,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:59,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:59,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:59,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:59,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:59,636 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_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4872de39e95e4bc5ccbeb0f1761dba68e05980d [2020-11-28 03:14:59,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:59,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:59,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:59,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:59,936 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:59,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-11-28 03:15:00,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/data/39b0d59a8/d2ec192c582347ef830ac2144110ae10/FLAG32c435a6f [2020-11-28 03:15:00,481 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:00,482 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-11-28 03:15:00,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/data/39b0d59a8/d2ec192c582347ef830ac2144110ae10/FLAG32c435a6f [2020-11-28 03:15:00,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/data/39b0d59a8/d2ec192c582347ef830ac2144110ae10 [2020-11-28 03:15:00,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:00,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:00,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:00,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:00,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:00,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:00" (1/1) ... [2020-11-28 03:15:00,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a77252a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:00, skipping insertion in model container [2020-11-28 03:15:00,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:00" (1/1) ... [2020-11-28 03:15:00,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:00,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:01,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:01,125 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:01,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:01,196 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:01,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01 WrapperNode [2020-11-28 03:15:01,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:01,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:01,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:01,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:01,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:01,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:01,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:01,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:01,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:01,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:01,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:01,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:01,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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 03:15:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:01,514 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:15:02,210 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-28 03:15:02,210 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-28 03:15:02,220 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:02,220 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:15:02,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02 BoogieIcfgContainer [2020-11-28 03:15:02,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:02,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:02,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:02,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:02,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:00" (1/3) ... [2020-11-28 03:15:02,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe5c77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:02, skipping insertion in model container [2020-11-28 03:15:02,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (2/3) ... [2020-11-28 03:15:02,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe5c77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:02, skipping insertion in model container [2020-11-28 03:15:02,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02" (3/3) ... [2020-11-28 03:15:02,232 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2020-11-28 03:15:02,246 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:02,252 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:15:02,262 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:15:02,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:02,288 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:02,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:02,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:02,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:02,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:02,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:02,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-11-28 03:15:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:15:02,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:02,318 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 03:15:02,319 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:02,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:02,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-11-28 03:15:02,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:02,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794602078] [2020-11-28 03:15:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,648 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 03:15:02,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794602078] [2020-11-28 03:15:02,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:02,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:02,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143418773] [2020-11-28 03:15:02,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:02,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:02,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:02,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:02,680 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-28 03:15:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:02,911 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-11-28 03:15:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:02,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:15:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:02,935 INFO L225 Difference]: With dead ends: 253 [2020-11-28 03:15:02,935 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:15:02,941 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 03:15:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:15:02,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-28 03:15:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:15:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-11-28 03:15:03,004 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-11-28 03:15:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:03,004 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-11-28 03:15:03,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-11-28 03:15:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:15:03,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,006 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 03:15:03,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:03,007 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,008 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-11-28 03:15:03,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028545200] [2020-11-28 03:15:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,090 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 03:15:03,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028545200] [2020-11-28 03:15:03,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:03,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526248204] [2020-11-28 03:15:03,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:03,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:03,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:03,103 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-11-28 03:15:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:03,333 INFO L93 Difference]: Finished difference Result 239 states and 362 transitions. [2020-11-28 03:15:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:03,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-28 03:15:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:03,337 INFO L225 Difference]: With dead ends: 239 [2020-11-28 03:15:03,337 INFO L226 Difference]: Without dead ends: 134 [2020-11-28 03:15:03,338 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 03:15:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-28 03:15:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2020-11-28 03:15:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-28 03:15:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-11-28 03:15:03,367 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-11-28 03:15:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:03,368 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-11-28 03:15:03,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-11-28 03:15:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:15:03,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,373 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 03:15:03,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:15:03,374 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,375 INFO L82 PathProgramCache]: Analyzing trace with hash 684962052, now seen corresponding path program 1 times [2020-11-28 03:15:03,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467447305] [2020-11-28 03:15:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,494 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 03:15:03,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467447305] [2020-11-28 03:15:03,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:03,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673289235] [2020-11-28 03:15:03,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:03,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:03,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:03,497 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-11-28 03:15:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:03,660 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2020-11-28 03:15:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:03,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:15:03,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:03,663 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:15:03,663 INFO L226 Difference]: Without dead ends: 151 [2020-11-28 03:15:03,664 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 03:15:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-11-28 03:15:03,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-11-28 03:15:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-28 03:15:03,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-11-28 03:15:03,676 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-11-28 03:15:03,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:03,676 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-11-28 03:15:03,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:03,677 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-11-28 03:15:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:15:03,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:03,679 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 03:15:03,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:15:03,680 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:03,681 INFO L82 PathProgramCache]: Analyzing trace with hash -184561774, now seen corresponding path program 1 times [2020-11-28 03:15:03,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:03,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376920533] [2020-11-28 03:15:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,772 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 03:15:03,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376920533] [2020-11-28 03:15:03,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:03,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777041310] [2020-11-28 03:15:03,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:03,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:03,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:03,775 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-11-28 03:15:04,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,006 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-11-28 03:15:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:04,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:15:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,010 INFO L225 Difference]: With dead ends: 335 [2020-11-28 03:15:04,010 INFO L226 Difference]: Without dead ends: 197 [2020-11-28 03:15:04,011 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 03:15:04,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-28 03:15:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-11-28 03:15:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-28 03:15:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-11-28 03:15:04,035 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-11-28 03:15:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,037 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-11-28 03:15:04,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-11-28 03:15:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:15:04,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,042 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 03:15:04,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:15:04,043 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1990000108, now seen corresponding path program 1 times [2020-11-28 03:15:04,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087730142] [2020-11-28 03:15:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,141 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 03:15:04,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087730142] [2020-11-28 03:15:04,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:04,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:04,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647900431] [2020-11-28 03:15:04,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:04,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:04,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:04,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:04,145 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-11-28 03:15:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,354 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-11-28 03:15:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:04,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:15:04,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,357 INFO L225 Difference]: With dead ends: 390 [2020-11-28 03:15:04,357 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 03:15:04,358 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 03:15:04,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 03:15:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-11-28 03:15:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-28 03:15:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-11-28 03:15:04,390 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-11-28 03:15:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,391 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-11-28 03:15:04,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-11-28 03:15:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-28 03:15:04,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,393 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 03:15:04,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:15:04,393 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:04,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,394 INFO L82 PathProgramCache]: Analyzing trace with hash -843012112, now seen corresponding path program 1 times [2020-11-28 03:15:04,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65610652] [2020-11-28 03:15:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,503 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 03:15:04,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65610652] [2020-11-28 03:15:04,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:04,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:04,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113168068] [2020-11-28 03:15:04,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:04,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:04,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:04,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:04,510 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-11-28 03:15:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,727 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-11-28 03:15:04,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:04,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-28 03:15:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,730 INFO L225 Difference]: With dead ends: 428 [2020-11-28 03:15:04,730 INFO L226 Difference]: Without dead ends: 231 [2020-11-28 03:15:04,731 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 03:15:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-28 03:15:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-11-28 03:15:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-28 03:15:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-11-28 03:15:04,745 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-11-28 03:15:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,746 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-11-28 03:15:04,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-11-28 03:15:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 03:15:04,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,755 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 03:15:04,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:15:04,755 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:04,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1725839848, now seen corresponding path program 1 times [2020-11-28 03:15:04,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351532478] [2020-11-28 03:15:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,869 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 03:15:04,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351532478] [2020-11-28 03:15:04,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:04,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:04,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946473322] [2020-11-28 03:15:04,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:04,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:04,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:04,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:04,871 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-11-28 03:15:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,919 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-11-28 03:15:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:04,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-28 03:15:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,923 INFO L225 Difference]: With dead ends: 661 [2020-11-28 03:15:04,923 INFO L226 Difference]: Without dead ends: 443 [2020-11-28 03:15:04,924 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 03:15:04,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-11-28 03:15:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-11-28 03:15:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-11-28 03:15:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-11-28 03:15:04,939 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-11-28 03:15:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,940 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-11-28 03:15:04,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-11-28 03:15:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 03:15:04,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,942 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 03:15:04,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:15:04,942 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1889855194, now seen corresponding path program 1 times [2020-11-28 03:15:04,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055303064] [2020-11-28 03:15:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,009 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 03:15:05,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055303064] [2020-11-28 03:15:05,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557897659] [2020-11-28 03:15:05,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:05,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:05,012 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-11-28 03:15:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,045 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-11-28 03:15:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:05,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-28 03:15:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,049 INFO L225 Difference]: With dead ends: 897 [2020-11-28 03:15:05,049 INFO L226 Difference]: Without dead ends: 464 [2020-11-28 03:15:05,050 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 03:15:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-11-28 03:15:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-11-28 03:15:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-11-28 03:15:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-11-28 03:15:05,069 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 105 [2020-11-28 03:15:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,070 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-11-28 03:15:05,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-11-28 03:15:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-28 03:15:05,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,072 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] [2020-11-28 03:15:05,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:15:05,073 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,073 INFO L82 PathProgramCache]: Analyzing trace with hash -810746188, now seen corresponding path program 1 times [2020-11-28 03:15:05,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657288228] [2020-11-28 03:15:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,141 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 03:15:05,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657288228] [2020-11-28 03:15:05,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968504059] [2020-11-28 03:15:05,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:05,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:05,150 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-11-28 03:15:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,186 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-11-28 03:15:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:05,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-28 03:15:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,190 INFO L225 Difference]: With dead ends: 945 [2020-11-28 03:15:05,190 INFO L226 Difference]: Without dead ends: 491 [2020-11-28 03:15:05,191 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 03:15:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-11-28 03:15:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-11-28 03:15:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-28 03:15:05,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-11-28 03:15:05,206 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-11-28 03:15:05,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,207 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-11-28 03:15:05,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:05,207 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-11-28 03:15:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-28 03:15:05,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,209 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 03:15:05,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:15:05,209 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,214 INFO L82 PathProgramCache]: Analyzing trace with hash 625791090, now seen corresponding path program 1 times [2020-11-28 03:15:05,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911768368] [2020-11-28 03:15:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,282 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 03:15:05,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911768368] [2020-11-28 03:15:05,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075192859] [2020-11-28 03:15:05,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:05,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:05,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:05,290 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-11-28 03:15:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,339 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-11-28 03:15:05,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:05,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-28 03:15:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,344 INFO L225 Difference]: With dead ends: 709 [2020-11-28 03:15:05,344 INFO L226 Difference]: Without dead ends: 707 [2020-11-28 03:15:05,345 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 03:15:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-11-28 03:15:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-11-28 03:15:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-11-28 03:15:05,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-11-28 03:15:05,369 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-11-28 03:15:05,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,369 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-11-28 03:15:05,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:05,369 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-11-28 03:15:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-28 03:15:05,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,373 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2020-11-28 03:15:05,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:15:05,373 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:05,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1290635395, now seen corresponding path program 1 times [2020-11-28 03:15:05,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176433268] [2020-11-28 03:15:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-11-28 03:15:05,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176433268] [2020-11-28 03:15:05,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686209488] [2020-11-28 03:15:05,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:05,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:05,479 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-11-28 03:15:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,724 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-11-28 03:15:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:05,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-11-28 03:15:05,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,730 INFO L225 Difference]: With dead ends: 1530 [2020-11-28 03:15:05,731 INFO L226 Difference]: Without dead ends: 857 [2020-11-28 03:15:05,732 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 03:15:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-11-28 03:15:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-11-28 03:15:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-11-28 03:15:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-11-28 03:15:05,758 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 176 [2020-11-28 03:15:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,759 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-11-28 03:15:05,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-11-28 03:15:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-28 03:15:05,763 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,763 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 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, 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 03:15:05,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:15:05,763 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1154586908, now seen corresponding path program 2 times [2020-11-28 03:15:05,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023970968] [2020-11-28 03:15:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-11-28 03:15:05,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023970968] [2020-11-28 03:15:05,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:05,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025190006] [2020-11-28 03:15:05,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:05,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:05,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:05,877 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-11-28 03:15:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:06,141 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-11-28 03:15:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:06,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-28 03:15:06,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:06,148 INFO L225 Difference]: With dead ends: 1892 [2020-11-28 03:15:06,148 INFO L226 Difference]: Without dead ends: 1054 [2020-11-28 03:15:06,150 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 03:15:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-11-28 03:15:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-11-28 03:15:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-11-28 03:15:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-11-28 03:15:06,180 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-11-28 03:15:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:06,181 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-11-28 03:15:06,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-11-28 03:15:06,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-28 03:15:06,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:06,185 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-11-28 03:15:06,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:15:06,186 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:06,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1143144718, now seen corresponding path program 1 times [2020-11-28 03:15:06,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:06,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263980981] [2020-11-28 03:15:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,290 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-28 03:15:06,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263980981] [2020-11-28 03:15:06,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:06,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:06,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535863709] [2020-11-28 03:15:06,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:06,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:06,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:06,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:06,293 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-11-28 03:15:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:06,558 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-11-28 03:15:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:06,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-11-28 03:15:06,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:06,566 INFO L225 Difference]: With dead ends: 2148 [2020-11-28 03:15:06,566 INFO L226 Difference]: Without dead ends: 1127 [2020-11-28 03:15:06,568 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 03:15:06,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-11-28 03:15:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-11-28 03:15:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-11-28 03:15:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-11-28 03:15:06,600 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-11-28 03:15:06,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:06,600 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-11-28 03:15:06,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-11-28 03:15:06,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-28 03:15:06,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:06,605 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 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, 1, 1, 1, 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 03:15:06,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:15:06,605 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:06,606 INFO L82 PathProgramCache]: Analyzing trace with hash 455987487, now seen corresponding path program 1 times [2020-11-28 03:15:06,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:06,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94240237] [2020-11-28 03:15:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-28 03:15:06,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94240237] [2020-11-28 03:15:06,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:06,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:06,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117983492] [2020-11-28 03:15:06,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:06,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:06,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:06,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:06,706 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-11-28 03:15:06,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:06,973 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-11-28 03:15:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:06,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-28 03:15:06,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:06,980 INFO L225 Difference]: With dead ends: 2298 [2020-11-28 03:15:06,981 INFO L226 Difference]: Without dead ends: 1208 [2020-11-28 03:15:06,983 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 03:15:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-11-28 03:15:07,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-11-28 03:15:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-11-28 03:15:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-11-28 03:15:07,019 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-11-28 03:15:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,019 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-11-28 03:15:07,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-11-28 03:15:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-28 03:15:07,024 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,025 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 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, 1, 1, 1, 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 03:15:07,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:15:07,025 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,026 INFO L82 PathProgramCache]: Analyzing trace with hash 574428961, now seen corresponding path program 1 times [2020-11-28 03:15:07,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789144700] [2020-11-28 03:15:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-28 03:15:07,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789144700] [2020-11-28 03:15:07,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:07,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:07,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977131859] [2020-11-28 03:15:07,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:07,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:07,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:07,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:07,149 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-11-28 03:15:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:07,407 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-11-28 03:15:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:07,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-28 03:15:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:07,415 INFO L225 Difference]: With dead ends: 2466 [2020-11-28 03:15:07,415 INFO L226 Difference]: Without dead ends: 1304 [2020-11-28 03:15:07,419 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 03:15:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-11-28 03:15:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-11-28 03:15:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-11-28 03:15:07,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-11-28 03:15:07,456 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-11-28 03:15:07,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,457 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-11-28 03:15:07,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-11-28 03:15:07,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-28 03:15:07,462 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,463 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-11-28 03:15:07,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:15:07,464 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,464 INFO L82 PathProgramCache]: Analyzing trace with hash 172133823, now seen corresponding path program 1 times [2020-11-28 03:15:07,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27660259] [2020-11-28 03:15:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-11-28 03:15:07,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27660259] [2020-11-28 03:15:07,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:07,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:07,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51647572] [2020-11-28 03:15:07,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:07,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:07,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:07,584 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-11-28 03:15:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:07,633 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-11-28 03:15:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:07,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-28 03:15:07,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:07,649 INFO L225 Difference]: With dead ends: 3718 [2020-11-28 03:15:07,649 INFO L226 Difference]: Without dead ends: 2490 [2020-11-28 03:15:07,651 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 03:15:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-11-28 03:15:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-11-28 03:15:07,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-11-28 03:15:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-11-28 03:15:07,729 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-11-28 03:15:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,729 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-11-28 03:15:07,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-11-28 03:15:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-28 03:15:07,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,737 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-11-28 03:15:07,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:15:07,737 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,738 INFO L82 PathProgramCache]: Analyzing trace with hash 290575297, now seen corresponding path program 1 times [2020-11-28 03:15:07,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459756714] [2020-11-28 03:15:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-11-28 03:15:07,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459756714] [2020-11-28 03:15:07,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:07,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:07,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556902059] [2020-11-28 03:15:07,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:07,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:07,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:07,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:07,872 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-11-28 03:15:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,176 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-11-28 03:15:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:08,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-28 03:15:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,192 INFO L225 Difference]: With dead ends: 5251 [2020-11-28 03:15:08,192 INFO L226 Difference]: Without dead ends: 2770 [2020-11-28 03:15:08,196 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 03:15:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-11-28 03:15:08,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-11-28 03:15:08,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-11-28 03:15:08,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-11-28 03:15:08,278 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-11-28 03:15:08,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,279 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-11-28 03:15:08,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:08,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-11-28 03:15:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-11-28 03:15:08,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:08,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:08,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:15:08,288 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:08,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1239310138, now seen corresponding path program 1 times [2020-11-28 03:15:08,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:08,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611460563] [2020-11-28 03:15:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-11-28 03:15:08,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611460563] [2020-11-28 03:15:08,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:08,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:08,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522352740] [2020-11-28 03:15:08,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:08,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:08,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:08,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:08,436 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-11-28 03:15:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,722 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-11-28 03:15:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:08,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-11-28 03:15:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,738 INFO L225 Difference]: With dead ends: 5443 [2020-11-28 03:15:08,739 INFO L226 Difference]: Without dead ends: 2764 [2020-11-28 03:15:08,742 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 03:15:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-11-28 03:15:08,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-11-28 03:15:08,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-28 03:15:08,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-11-28 03:15:08,824 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-11-28 03:15:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,824 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-11-28 03:15:08,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-11-28 03:15:08,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-11-28 03:15:08,833 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:08,833 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:08,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:15:08,833 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:08,834 INFO L82 PathProgramCache]: Analyzing trace with hash 918915254, now seen corresponding path program 1 times [2020-11-28 03:15:08,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:08,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097160492] [2020-11-28 03:15:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 663 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-28 03:15:08,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097160492] [2020-11-28 03:15:08,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:08,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:08,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241366010] [2020-11-28 03:15:08,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:08,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:08,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:08,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:08,986 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-11-28 03:15:09,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:09,235 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-11-28 03:15:09,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:09,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2020-11-28 03:15:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:09,251 INFO L225 Difference]: With dead ends: 5407 [2020-11-28 03:15:09,251 INFO L226 Difference]: Without dead ends: 2752 [2020-11-28 03:15:09,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-11-28 03:15:09,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-11-28 03:15:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-28 03:15:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-11-28 03:15:09,363 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 322 [2020-11-28 03:15:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:09,364 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-11-28 03:15:09,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-11-28 03:15:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-11-28 03:15:09,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:09,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:09,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:15:09,373 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:09,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:09,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1665023372, now seen corresponding path program 1 times [2020-11-28 03:15:09,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:09,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206950279] [2020-11-28 03:15:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:15:09,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206950279] [2020-11-28 03:15:09,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:09,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:09,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889683626] [2020-11-28 03:15:09,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:09,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:09,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:09,529 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-11-28 03:15:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:09,796 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-11-28 03:15:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:09,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-11-28 03:15:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:09,813 INFO L225 Difference]: With dead ends: 5653 [2020-11-28 03:15:09,814 INFO L226 Difference]: Without dead ends: 2998 [2020-11-28 03:15:09,817 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 03:15:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-11-28 03:15:09,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-11-28 03:15:09,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-11-28 03:15:09,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-11-28 03:15:09,897 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-11-28 03:15:09,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:09,898 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-11-28 03:15:09,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-11-28 03:15:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-11-28 03:15:09,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:09,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:09,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 03:15:09,907 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:09,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1597112402, now seen corresponding path program 1 times [2020-11-28 03:15:09,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:09,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086858767] [2020-11-28 03:15:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-11-28 03:15:10,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086858767] [2020-11-28 03:15:10,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:10,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:10,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004821411] [2020-11-28 03:15:10,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:10,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:10,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:10,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:10,142 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-11-28 03:15:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:10,232 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-11-28 03:15:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:10,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-11-28 03:15:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:10,277 INFO L225 Difference]: With dead ends: 7882 [2020-11-28 03:15:10,277 INFO L226 Difference]: Without dead ends: 5137 [2020-11-28 03:15:10,282 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 03:15:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-11-28 03:15:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-11-28 03:15:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-11-28 03:15:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-11-28 03:15:10,457 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-11-28 03:15:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:10,458 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-11-28 03:15:10,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-11-28 03:15:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-11-28 03:15:10,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:10,473 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:10,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-28 03:15:10,473 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:10,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:10,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1354743787, now seen corresponding path program 1 times [2020-11-28 03:15:10,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:10,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569493005] [2020-11-28 03:15:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-28 03:15:10,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569493005] [2020-11-28 03:15:10,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868607703] [2020-11-28 03:15:10,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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 03:15:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:10,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-28 03:15:11,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:15:11,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:15:11,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287269231] [2020-11-28 03:15:11,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:11,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:11,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:11,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:11,057 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-11-28 03:15:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:11,790 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-11-28 03:15:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:15:11,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 361 [2020-11-28 03:15:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:11,807 INFO L225 Difference]: With dead ends: 10175 [2020-11-28 03:15:11,807 INFO L226 Difference]: Without dead ends: 7688 [2020-11-28 03:15:11,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 363 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 03:15:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-11-28 03:15:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-11-28 03:15:11,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-11-28 03:15:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-11-28 03:15:11,996 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 361 [2020-11-28 03:15:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:11,996 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-11-28 03:15:11,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-11-28 03:15:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-28 03:15:12,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:12,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:12,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-28 03:15:12,222 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:12,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:12,223 INFO L82 PathProgramCache]: Analyzing trace with hash 290805068, now seen corresponding path program 2 times [2020-11-28 03:15:12,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:12,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82030852] [2020-11-28 03:15:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:15:12,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82030852] [2020-11-28 03:15:12,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495335764] [2020-11-28 03:15:12,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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 03:15:12,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:15:12,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:15:12,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:12,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:15:12,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:15:12,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:15:12,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858774578] [2020-11-28 03:15:12,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:12,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:12,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:12,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:12,816 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-11-28 03:15:13,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:13,359 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-11-28 03:15:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:13,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-11-28 03:15:13,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:13,375 INFO L225 Difference]: With dead ends: 12703 [2020-11-28 03:15:13,375 INFO L226 Difference]: Without dead ends: 7058 [2020-11-28 03:15:13,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 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 03:15:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-11-28 03:15:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-11-28 03:15:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-11-28 03:15:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-11-28 03:15:13,565 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-11-28 03:15:13,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:13,566 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-11-28 03:15:13,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:13,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-11-28 03:15:13,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-11-28 03:15:13,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:13,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:13,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-28 03:15:13,802 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:13,803 INFO L82 PathProgramCache]: Analyzing trace with hash -939951161, now seen corresponding path program 1 times [2020-11-28 03:15:13,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:13,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038944009] [2020-11-28 03:15:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-28 03:15:14,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038944009] [2020-11-28 03:15:14,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:14,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:14,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18497897] [2020-11-28 03:15:14,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:14,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:14,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:14,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:14,090 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-11-28 03:15:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:14,377 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-11-28 03:15:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:14,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-11-28 03:15:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:14,385 INFO L225 Difference]: With dead ends: 11133 [2020-11-28 03:15:14,386 INFO L226 Difference]: Without dead ends: 3109 [2020-11-28 03:15:14,394 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 03:15:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-11-28 03:15:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-11-28 03:15:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-11-28 03:15:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-11-28 03:15:14,475 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-11-28 03:15:14,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:14,476 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-11-28 03:15:14,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:14,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-11-28 03:15:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-28 03:15:14,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:14,486 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 17, 17, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:14,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-28 03:15:14,486 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:14,487 INFO L82 PathProgramCache]: Analyzing trace with hash -826650578, now seen corresponding path program 1 times [2020-11-28 03:15:14,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:14,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748066850] [2020-11-28 03:15:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1648 proven. 14 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2020-11-28 03:15:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748066850] [2020-11-28 03:15:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952424036] [2020-11-28 03:15:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/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 03:15:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:15,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:15,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:15,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1823 trivial. 0 not checked. [2020-11-28 03:15:15,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:15,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-28 03:15:15,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900278164] [2020-11-28 03:15:15,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:15,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:15,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:15,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:15,376 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-11-28 03:15:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:15,417 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-11-28 03:15:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:15,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 511 [2020-11-28 03:15:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:15,423 INFO L225 Difference]: With dead ends: 3068 [2020-11-28 03:15:15,423 INFO L226 Difference]: Without dead ends: 2571 [2020-11-28 03:15:15,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-11-28 03:15:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-11-28 03:15:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-11-28 03:15:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-11-28 03:15:15,481 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 511 [2020-11-28 03:15:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:15,482 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-11-28 03:15:15,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-11-28 03:15:15,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-11-28 03:15:15,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:15,489 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:15,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-28 03:15:15,703 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:15,703 INFO L82 PathProgramCache]: Analyzing trace with hash -301655084, now seen corresponding path program 1 times [2020-11-28 03:15:15,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:15,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733883740] [2020-11-28 03:15:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1623 proven. 14 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2020-11-28 03:15:15,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733883740] [2020-11-28 03:15:15,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674188729] [2020-11-28 03:15:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:16,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:16,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 2506 trivial. 0 not checked. [2020-11-28 03:15:16,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:15:16,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-28 03:15:16,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349128180] [2020-11-28 03:15:16,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:16,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:16,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:16,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:16,361 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-11-28 03:15:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:16,582 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-11-28 03:15:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:16,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 512 [2020-11-28 03:15:16,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:16,589 INFO L225 Difference]: With dead ends: 5167 [2020-11-28 03:15:16,589 INFO L226 Difference]: Without dead ends: 2656 [2020-11-28 03:15:16,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:16,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-11-28 03:15:16,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-11-28 03:15:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-11-28 03:15:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-11-28 03:15:16,652 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 512 [2020-11-28 03:15:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:16,653 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-11-28 03:15:16,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:16,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-11-28 03:15:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-11-28 03:15:16,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:16,663 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:16,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:16,887 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 44620561, now seen corresponding path program 2 times [2020-11-28 03:15:16,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:16,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309088996] [2020-11-28 03:15:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-11-28 03:15:17,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309088996] [2020-11-28 03:15:17,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215468882] [2020-11-28 03:15:17,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:17,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:15:17,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:15:17,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:17,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-11-28 03:15:17,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:15:17,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:15:17,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134164567] [2020-11-28 03:15:17,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:17,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:17,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:17,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:17,870 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-11-28 03:15:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:18,039 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-11-28 03:15:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:18,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 623 [2020-11-28 03:15:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:18,040 INFO L225 Difference]: With dead ends: 2888 [2020-11-28 03:15:18,040 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:15:18,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 625 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 03:15:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:15:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:15:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:15:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:15:18,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 623 [2020-11-28 03:15:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:18,045 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:18,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:18,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:15:18,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-28 03:15:18,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:15:18,687 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-11-28 03:15:19,696 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L531(lines 531 535) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L334(lines 334 336) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L277 CegarLoopResult]: At program point L202(lines 201 489) the Hoare annotation is: true [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L169(lines 169 499) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L136(lines 136 510) no Hoare annotation was computed. [2020-11-28 03:15:19,877 INFO L274 CegarLoopResult]: For program point L103(lines 103 521) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L270 CegarLoopResult]: At program point L170(lines 166 500) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,878 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 03:15:19,878 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L436(lines 436 440) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L271-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L172(lines 172 498) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L139(lines 139 509) no Hoare annotation was computed. [2020-11-28 03:15:19,878 INFO L274 CegarLoopResult]: For program point L106(lines 106 520) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L270 CegarLoopResult]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L240(lines 240 243) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L373(lines 373 375) no Hoare annotation was computed. [2020-11-28 03:15:19,879 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 03:15:19,879 INFO L274 CegarLoopResult]: For program point L175(lines 175 497) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L142(lines 142 508) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L109(lines 109 519) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L270 CegarLoopResult]: At program point L176(lines 172 498) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-11-28 03:15:19,879 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L277 CegarLoopResult]: At program point L541(lines 99 542) the Hoare annotation is: true [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L277(lines 277 281) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L277-2(lines 277 281) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L178(lines 178 496) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L145(lines 145 507) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L112(lines 112 518) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L270 CegarLoopResult]: At program point L146(lines 142 508) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L213(lines 213 215) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L181(lines 181 495) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L148(lines 148 506) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L115(lines 115 517) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-11-28 03:15:19,880 INFO L274 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L413(lines 413 427) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L314(lines 314 317) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L270 CegarLoopResult]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L546(lines 546 548) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L349(lines 349 351) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L184(lines 184 494) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L151(lines 151 505) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L118(lines 118 516) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:15:19,881 INFO L274 CegarLoopResult]: For program point L218(lines 218 221) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L270 CegarLoopResult]: At program point L152(lines 148 506) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L252(lines 252 258) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L451(lines 451 454) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L187(lines 187 493) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L154(lines 154 504) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L274 CegarLoopResult]: For program point L121(lines 121 515) no Hoare annotation was computed. [2020-11-28 03:15:19,882 INFO L277 CegarLoopResult]: At program point L551(lines 12 553) the Hoare annotation is: true [2020-11-28 03:15:19,882 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_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-11-28 03:15:19,882 INFO L270 CegarLoopResult]: At program point L122(lines 118 516) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L288(lines 288 298) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L255(lines 255 257) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L288-2(lines 288 298) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L255-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L270 CegarLoopResult]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= 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 .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-11-28 03:15:19,883 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L190(lines 190 492) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L157(lines 157 503) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L124(lines 124 514) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L389(lines 389 393) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L270 CegarLoopResult]: At program point L323(lines 77 552) the Hoare annotation is: false [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L522(lines 522 538) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L523(lines 523 537) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L358(lines 358 360) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-11-28 03:15:19,884 INFO L274 CegarLoopResult]: For program point L226(lines 226 229) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L292-2(lines 290 298) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L193(lines 193 491) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L160(lines 160 502) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L127(lines 127 513) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L524(lines 524 529) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L270 CegarLoopResult]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (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 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-11-28 03:15:19,885 INFO L270 CegarLoopResult]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L526(lines 526 528) no Hoare annotation was computed. [2020-11-28 03:15:19,885 INFO L274 CegarLoopResult]: For program point L196(lines 196 490) no Hoare annotation was computed. [2020-11-28 03:15:19,886 INFO L274 CegarLoopResult]: For program point L163(lines 163 501) no Hoare annotation was computed. [2020-11-28 03:15:19,886 INFO L274 CegarLoopResult]: For program point L130(lines 130 512) no Hoare annotation was computed. [2020-11-28 03:15:19,886 INFO L274 CegarLoopResult]: For program point L362(lines 362 367) no Hoare annotation was computed. [2020-11-28 03:15:19,886 INFO L274 CegarLoopResult]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2020-11-28 03:15:19,886 INFO L274 CegarLoopResult]: For program point L230(lines 230 233) no Hoare annotation was computed. [2020-11-28 03:15:19,891 INFO L270 CegarLoopResult]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-11-28 03:15:19,891 INFO L270 CegarLoopResult]: At program point L164(lines 154 504) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-28 03:15:19,891 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:15:19,891 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:15:19,891 INFO L274 CegarLoopResult]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L264(lines 264 266) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L277 CegarLoopResult]: At program point L562(lines 554 564) the Hoare annotation is: true [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L199(lines 199 489) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L166(lines 166 500) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L133(lines 133 511) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L274 CegarLoopResult]: For program point L398(lines 398 401) no Hoare annotation was computed. [2020-11-28 03:15:19,892 INFO L277 CegarLoopResult]: At program point L200(lines 199 489) the Hoare annotation is: true [2020-11-28 03:15:19,893 INFO L270 CegarLoopResult]: At program point L134(lines 130 512) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-11-28 03:15:19,893 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:15:19,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:19 BoogieIcfgContainer [2020-11-28 03:15:19,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:19,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:19,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:19,932 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:19,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:02" (3/4) ... [2020-11-28 03:15:19,936 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:15:19,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:15:19,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:15:19,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:19,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:20,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0185f0e8-bc89-459e-93b2-eac2fb0bd6ec/bin/uautomizer/witness.graphml [2020-11-28 03:15:20,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:20,085 INFO L168 Benchmark]: Toolchain (without parser) took 19247.35 ms. Allocated memory was 100.7 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 79.8 MB in the beginning and 1.0 GB in the end (delta: -960.2 MB). Peak memory consumption was 481.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,085 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 61.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:20,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.02 ms. Allocated memory is still 100.7 MB. Free memory was 79.6 MB in the beginning and 65.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 62.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,087 INFO L168 Benchmark]: Boogie Preprocessor took 37.87 ms. Allocated memory is still 100.7 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,087 INFO L168 Benchmark]: RCFGBuilder took 930.12 ms. Allocated memory is still 100.7 MB. Free memory was 60.6 MB in the beginning and 47.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,087 INFO L168 Benchmark]: TraceAbstraction took 17706.80 ms. Allocated memory was 100.7 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 46.8 MB in the beginning and 1.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 437.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,088 INFO L168 Benchmark]: Witness Printer took 152.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:20,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 61.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.02 ms. Allocated memory is still 100.7 MB. Free memory was 79.6 MB in the beginning and 65.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 62.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.87 ms. Allocated memory is still 100.7 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 930.12 ms. Allocated memory is still 100.7 MB. Free memory was 60.6 MB in the beginning and 47.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17706.80 ms. Allocated memory was 100.7 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 46.8 MB in the beginning and 1.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 437.9 MB. Max. memory is 16.1 GB. * Witness Printer took 152.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB 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: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - 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: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && 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: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state <= 4432 && 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 && 4512 <= 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 <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((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 <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((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)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((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 <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && 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: 27, TraceHistogramMax: 22, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2135 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2468 GetRequests, 2431 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 8796 NumberOfCodeBlocks, 8796 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 8764 ConstructedInterpolants, 0 QuantifiedInterpolants, 4603118 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4093 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 39205/39291 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...