./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-1.i --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_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/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 cdf63a831807312c569006a76efbe1414243703d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:49:20,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:49:20,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:49:20,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:49:20,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:49:20,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:49:20,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:49:20,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:49:20,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:49:20,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:49:20,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:49:20,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:49:20,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:49:20,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:49:20,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:49:20,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:49:20,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:49:20,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:49:20,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:49:20,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:49:20,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:49:20,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:49:20,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:49:20,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:49:20,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:49:20,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:49:20,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:49:20,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:49:20,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:49:20,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:49:20,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:49:20,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:49:20,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:49:20,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:49:20,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:49:20,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:49:20,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:49:20,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:49:20,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:49:20,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:49:20,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:49:20,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:49:20,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:49:20,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:49:20,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:49:20,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:49:20,693 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:49:20,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:49:20,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:49:20,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:49:20,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:49:20,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:49:20,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:49:20,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:49:20,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:49:20,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:49:20,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:49:20,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:49:20,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:49:20,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:49:20,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:49:20,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:49:20,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:49:20,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:49:20,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:49:20,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:49:20,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:49:20,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:49:20,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:49:20,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:49:20,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:49:20,710 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_8930ea16-6c7d-487e-ad0f-0e1c3add4264/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf63a831807312c569006a76efbe1414243703d [2020-11-29 19:49:21,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:49:21,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:49:21,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:49:21,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:49:21,142 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:49:21,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-01-1.i [2020-11-29 19:49:21,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/data/6b4bdc9b7/b3c6291406504bd181c3365857fbb18b/FLAGed3e050fc [2020-11-29 19:49:21,775 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:49:21,776 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/sv-benchmarks/c/forester-heap/dll-01-1.i [2020-11-29 19:49:21,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/data/6b4bdc9b7/b3c6291406504bd181c3365857fbb18b/FLAGed3e050fc [2020-11-29 19:49:22,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/data/6b4bdc9b7/b3c6291406504bd181c3365857fbb18b [2020-11-29 19:49:22,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:49:22,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:49:22,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:49:22,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:49:22,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:49:22,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf5ace9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22, skipping insertion in model container [2020-11-29 19:49:22,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:49:22,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:49:22,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:49:22,454 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:49:22,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:49:22,550 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:49:22,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22 WrapperNode [2020-11-29 19:49:22,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:49:22,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:49:22,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:49:22,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:49:22,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:49:22,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:49:22,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:49:22,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:49:22,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... [2020-11-29 19:49:22,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:49:22,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:49:22,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:49:22,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:49:22,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/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 [2020-11-29 19:49:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:49:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 19:49:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:49:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 19:49:22,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:49:22,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:49:22,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:49:22,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:49:23,441 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:49:23,446 INFO L298 CfgBuilder]: Removed 60 assume(true) statements. [2020-11-29 19:49:23,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:49:23 BoogieIcfgContainer [2020-11-29 19:49:23,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:49:23,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:49:23,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:49:23,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:49:23,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:49:22" (1/3) ... [2020-11-29 19:49:23,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a21321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:49:23, skipping insertion in model container [2020-11-29 19:49:23,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:22" (2/3) ... [2020-11-29 19:49:23,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a21321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:49:23, skipping insertion in model container [2020-11-29 19:49:23,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:49:23" (3/3) ... [2020-11-29 19:49:23,459 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-11-29 19:49:23,477 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:49:23,482 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-11-29 19:49:23,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-11-29 19:49:23,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:49:23,520 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:49:23,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:49:23,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:49:23,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:49:23,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:49:23,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:49:23,521 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:49:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2020-11-29 19:49:23,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:49:23,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:23,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 19:49:23,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:23,552 INFO L82 PathProgramCache]: Analyzing trace with hash 28696838, now seen corresponding path program 1 times [2020-11-29 19:49:23,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:23,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586589702] [2020-11-29 19:49:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:23,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586589702] [2020-11-29 19:49:23,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:23,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:23,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85047326] [2020-11-29 19:49:23,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:23,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:23,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:23,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:23,757 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-11-29 19:49:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:23,827 INFO L93 Difference]: Finished difference Result 221 states and 365 transitions. [2020-11-29 19:49:23,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:23,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 19:49:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:23,846 INFO L225 Difference]: With dead ends: 221 [2020-11-29 19:49:23,846 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 19:49:23,855 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 [2020-11-29 19:49:23,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 19:49:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 89. [2020-11-29 19:49:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 19:49:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-11-29 19:49:23,922 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 5 [2020-11-29 19:49:23,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:23,922 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-11-29 19:49:23,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-11-29 19:49:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:49:23,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:23,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:23,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:49:23,925 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:23,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1244560352, now seen corresponding path program 1 times [2020-11-29 19:49:23,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:23,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35813167] [2020-11-29 19:49:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:24,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35813167] [2020-11-29 19:49:24,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:24,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:24,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709308979] [2020-11-29 19:49:24,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:24,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:24,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:24,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:24,050 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 3 states. [2020-11-29 19:49:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:24,073 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2020-11-29 19:49:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:24,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-29 19:49:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:24,079 INFO L225 Difference]: With dead ends: 93 [2020-11-29 19:49:24,079 INFO L226 Difference]: Without dead ends: 90 [2020-11-29 19:49:24,080 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 [2020-11-29 19:49:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-29 19:49:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-29 19:49:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-29 19:49:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-11-29 19:49:24,096 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 11 [2020-11-29 19:49:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:24,097 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-11-29 19:49:24,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-11-29 19:49:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:49:24,098 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:24,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:24,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:49:24,099 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:24,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1244619934, now seen corresponding path program 1 times [2020-11-29 19:49:24,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:24,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662932169] [2020-11-29 19:49:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:24,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662932169] [2020-11-29 19:49:24,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:24,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:49:24,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266688004] [2020-11-29 19:49:24,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:49:24,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:24,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:49:24,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:24,246 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 4 states. [2020-11-29 19:49:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:24,370 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2020-11-29 19:49:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:49:24,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 19:49:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:24,371 INFO L225 Difference]: With dead ends: 91 [2020-11-29 19:49:24,372 INFO L226 Difference]: Without dead ends: 88 [2020-11-29 19:49:24,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-29 19:49:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-11-29 19:49:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-29 19:49:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2020-11-29 19:49:24,379 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 11 [2020-11-29 19:49:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:24,380 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2020-11-29 19:49:24,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:49:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-11-29 19:49:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:49:24,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:24,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:24,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:49:24,381 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:24,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:24,382 INFO L82 PathProgramCache]: Analyzing trace with hash -394307937, now seen corresponding path program 1 times [2020-11-29 19:49:24,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:24,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930743799] [2020-11-29 19:49:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:24,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930743799] [2020-11-29 19:49:24,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:24,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:49:24,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377698779] [2020-11-29 19:49:24,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:49:24,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:49:24,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:49:24,557 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 5 states. [2020-11-29 19:49:24,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:24,800 INFO L93 Difference]: Finished difference Result 138 states and 152 transitions. [2020-11-29 19:49:24,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:49:24,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-29 19:49:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:24,803 INFO L225 Difference]: With dead ends: 138 [2020-11-29 19:49:24,803 INFO L226 Difference]: Without dead ends: 132 [2020-11-29 19:49:24,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:49:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-29 19:49:24,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 80. [2020-11-29 19:49:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-29 19:49:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2020-11-29 19:49:24,816 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 16 [2020-11-29 19:49:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:24,817 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2020-11-29 19:49:24,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:49:24,817 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2020-11-29 19:49:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:49:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:24,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:24,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:49:24,819 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash 662126649, now seen corresponding path program 1 times [2020-11-29 19:49:24,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:24,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692226914] [2020-11-29 19:49:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:24,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692226914] [2020-11-29 19:49:24,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:24,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:49:24,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378920062] [2020-11-29 19:49:24,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:49:24,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:24,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:49:24,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:24,897 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand 4 states. [2020-11-29 19:49:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:25,010 INFO L93 Difference]: Finished difference Result 149 states and 163 transitions. [2020-11-29 19:49:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:49:25,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-29 19:49:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:25,012 INFO L225 Difference]: With dead ends: 149 [2020-11-29 19:49:25,012 INFO L226 Difference]: Without dead ends: 125 [2020-11-29 19:49:25,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:49:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-29 19:49:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 78. [2020-11-29 19:49:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-29 19:49:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2020-11-29 19:49:25,024 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 17 [2020-11-29 19:49:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:25,025 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2020-11-29 19:49:25,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:49:25,025 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2020-11-29 19:49:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 19:49:25,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:25,026 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] [2020-11-29 19:49:25,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:49:25,027 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:25,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:25,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1970931883, now seen corresponding path program 1 times [2020-11-29 19:49:25,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:25,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003920317] [2020-11-29 19:49:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:25,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003920317] [2020-11-29 19:49:25,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:25,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:25,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019939528] [2020-11-29 19:49:25,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:25,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:25,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:25,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:25,073 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 3 states. [2020-11-29 19:49:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:25,091 INFO L93 Difference]: Finished difference Result 153 states and 171 transitions. [2020-11-29 19:49:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:25,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-29 19:49:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:25,093 INFO L225 Difference]: With dead ends: 153 [2020-11-29 19:49:25,093 INFO L226 Difference]: Without dead ends: 105 [2020-11-29 19:49:25,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-29 19:49:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 81. [2020-11-29 19:49:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-29 19:49:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2020-11-29 19:49:25,102 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 21 [2020-11-29 19:49:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:25,103 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2020-11-29 19:49:25,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2020-11-29 19:49:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 19:49:25,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:25,104 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] [2020-11-29 19:49:25,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:49:25,105 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash 968549259, now seen corresponding path program 1 times [2020-11-29 19:49:25,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:25,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435681129] [2020-11-29 19:49:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:25,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435681129] [2020-11-29 19:49:25,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:25,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:25,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225638574] [2020-11-29 19:49:25,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:25,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:25,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:25,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:25,184 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 3 states. [2020-11-29 19:49:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:25,229 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2020-11-29 19:49:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:25,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 19:49:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:25,231 INFO L225 Difference]: With dead ends: 81 [2020-11-29 19:49:25,231 INFO L226 Difference]: Without dead ends: 78 [2020-11-29 19:49:25,232 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 [2020-11-29 19:49:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-29 19:49:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-29 19:49:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-29 19:49:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-11-29 19:49:25,248 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 22 [2020-11-29 19:49:25,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:25,249 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-11-29 19:49:25,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-11-29 19:49:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 19:49:25,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:25,251 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] [2020-11-29 19:49:25,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:49:25,252 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:25,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:25,253 INFO L82 PathProgramCache]: Analyzing trace with hash -800273617, now seen corresponding path program 1 times [2020-11-29 19:49:25,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:25,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526731858] [2020-11-29 19:49:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:25,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526731858] [2020-11-29 19:49:25,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:25,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:25,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247286631] [2020-11-29 19:49:25,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:25,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:25,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:25,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:25,322 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 3 states. [2020-11-29 19:49:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:25,340 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2020-11-29 19:49:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:25,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 19:49:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:25,343 INFO L225 Difference]: With dead ends: 82 [2020-11-29 19:49:25,343 INFO L226 Difference]: Without dead ends: 79 [2020-11-29 19:49:25,344 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 [2020-11-29 19:49:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-29 19:49:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-29 19:49:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-29 19:49:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2020-11-29 19:49:25,359 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 24 [2020-11-29 19:49:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:25,360 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2020-11-29 19:49:25,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2020-11-29 19:49:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 19:49:25,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:25,371 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] [2020-11-29 19:49:25,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:49:25,372 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:25,373 INFO L82 PathProgramCache]: Analyzing trace with hash -800214035, now seen corresponding path program 1 times [2020-11-29 19:49:25,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:25,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122378784] [2020-11-29 19:49:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:25,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122378784] [2020-11-29 19:49:25,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:25,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:49:25,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941532471] [2020-11-29 19:49:25,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:49:25,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:25,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:49:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:25,466 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 4 states. [2020-11-29 19:49:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:25,578 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-11-29 19:49:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:49:25,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-29 19:49:25,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:25,580 INFO L225 Difference]: With dead ends: 80 [2020-11-29 19:49:25,580 INFO L226 Difference]: Without dead ends: 77 [2020-11-29 19:49:25,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-29 19:49:25,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2020-11-29 19:49:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-29 19:49:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2020-11-29 19:49:25,590 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 24 [2020-11-29 19:49:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:25,591 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2020-11-29 19:49:25,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:49:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2020-11-29 19:49:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:49:25,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:25,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:25,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 19:49:25,593 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:25,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:25,594 INFO L82 PathProgramCache]: Analyzing trace with hash 785556314, now seen corresponding path program 1 times [2020-11-29 19:49:25,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:25,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181022562] [2020-11-29 19:49:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181022562] [2020-11-29 19:49:25,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:25,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:49:25,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587126577] [2020-11-29 19:49:25,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:49:25,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:25,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:49:25,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:49:25,834 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 7 states. [2020-11-29 19:49:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:26,418 INFO L93 Difference]: Finished difference Result 243 states and 267 transitions. [2020-11-29 19:49:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 19:49:26,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-11-29 19:49:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:26,421 INFO L225 Difference]: With dead ends: 243 [2020-11-29 19:49:26,421 INFO L226 Difference]: Without dead ends: 240 [2020-11-29 19:49:26,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-11-29 19:49:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-11-29 19:49:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 92. [2020-11-29 19:49:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-29 19:49:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2020-11-29 19:49:26,433 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 25 [2020-11-29 19:49:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:26,433 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2020-11-29 19:49:26,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:49:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2020-11-29 19:49:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:49:26,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:26,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:26,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 19:49:26,435 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:26,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1603204764, now seen corresponding path program 1 times [2020-11-29 19:49:26,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:26,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003446775] [2020-11-29 19:49:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:26,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003446775] [2020-11-29 19:49:26,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:26,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:49:26,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188593759] [2020-11-29 19:49:26,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:49:26,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:26,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:49:26,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:26,479 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand 4 states. [2020-11-29 19:49:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:26,614 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-11-29 19:49:26,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:49:26,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-29 19:49:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:26,616 INFO L225 Difference]: With dead ends: 213 [2020-11-29 19:49:26,616 INFO L226 Difference]: Without dead ends: 146 [2020-11-29 19:49:26,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:49:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-29 19:49:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 92. [2020-11-29 19:49:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-29 19:49:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2020-11-29 19:49:26,625 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 25 [2020-11-29 19:49:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:26,626 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2020-11-29 19:49:26,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:49:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2020-11-29 19:49:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:49:26,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:26,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:26,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 19:49:26,634 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:26,641 INFO L82 PathProgramCache]: Analyzing trace with hash -390939942, now seen corresponding path program 1 times [2020-11-29 19:49:26,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:26,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313414664] [2020-11-29 19:49:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:26,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313414664] [2020-11-29 19:49:26,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:26,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:49:26,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834194564] [2020-11-29 19:49:26,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:49:26,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:49:26,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:49:26,755 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand 6 states. [2020-11-29 19:49:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:27,131 INFO L93 Difference]: Finished difference Result 220 states and 248 transitions. [2020-11-29 19:49:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:49:27,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-29 19:49:27,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:27,133 INFO L225 Difference]: With dead ends: 220 [2020-11-29 19:49:27,133 INFO L226 Difference]: Without dead ends: 167 [2020-11-29 19:49:27,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-29 19:49:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-29 19:49:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 99. [2020-11-29 19:49:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 19:49:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-11-29 19:49:27,140 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 25 [2020-11-29 19:49:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:27,141 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-11-29 19:49:27,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:49:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-11-29 19:49:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 19:49:27,142 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:27,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:27,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 19:49:27,142 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:27,143 INFO L82 PathProgramCache]: Analyzing trace with hash 814295652, now seen corresponding path program 1 times [2020-11-29 19:49:27,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:27,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537877628] [2020-11-29 19:49:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:49:27,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537877628] [2020-11-29 19:49:27,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:27,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:49:27,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725046758] [2020-11-29 19:49:27,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:49:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:27,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:49:27,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:49:27,175 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 3 states. [2020-11-29 19:49:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:27,251 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2020-11-29 19:49:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:49:27,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-29 19:49:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:27,253 INFO L225 Difference]: With dead ends: 99 [2020-11-29 19:49:27,253 INFO L226 Difference]: Without dead ends: 96 [2020-11-29 19:49:27,253 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 [2020-11-29 19:49:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-29 19:49:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-11-29 19:49:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-29 19:49:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2020-11-29 19:49:27,262 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 27 [2020-11-29 19:49:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:27,263 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2020-11-29 19:49:27,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:49:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2020-11-29 19:49:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 19:49:27,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:27,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:27,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 19:49:27,265 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:27,266 INFO L82 PathProgramCache]: Analyzing trace with hash -443744732, now seen corresponding path program 1 times [2020-11-29 19:49:27,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:27,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357907645] [2020-11-29 19:49:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:27,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:27,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:27,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:49:27,364 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:49:27,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 19:49:27,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:49:27 BoogieIcfgContainer [2020-11-29 19:49:27,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:49:27,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:49:27,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:49:27,442 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:49:27,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:49:23" (3/4) ... [2020-11-29 19:49:27,445 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:49:27,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8930ea16-6c7d-487e-ad0f-0e1c3add4264/bin/uautomizer/witness.graphml [2020-11-29 19:49:27,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:49:27,539 INFO L168 Benchmark]: Toolchain (without parser) took 5424.75 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 67.1 MB in the beginning and 46.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,540 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:49:27,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.92 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 44.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.10 ms. Allocated memory is still 88.1 MB. Free memory was 44.1 MB in the beginning and 41.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,542 INFO L168 Benchmark]: Boogie Preprocessor took 43.96 ms. Allocated memory is still 88.1 MB. Free memory was 41.6 MB in the beginning and 39.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,542 INFO L168 Benchmark]: RCFGBuilder took 802.47 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 39.2 MB in the beginning and 50.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,543 INFO L168 Benchmark]: TraceAbstraction took 3988.91 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 50.3 MB in the beginning and 48.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,543 INFO L168 Benchmark]: Witness Printer took 95.38 ms. Allocated memory is still 130.0 MB. Free memory was 48.1 MB in the beginning and 46.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:49:27,546 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 88.1 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.92 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 44.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.10 ms. Allocated memory is still 88.1 MB. Free memory was 44.1 MB in the beginning and 41.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.96 ms. Allocated memory is still 88.1 MB. Free memory was 41.6 MB in the beginning and 39.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 802.47 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 39.2 MB in the beginning and 50.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3988.91 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 50.3 MB in the beginning and 48.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Witness Printer took 95.38 ms. Allocated memory is still 130.0 MB. Free memory was 48.1 MB in the beginning and 46.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) [L1006] COND FALSE !(!(list != ((void*)0))) [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list [L1026] COND FALSE !(!(((void*)0) != end)) [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner [L1034] COND TRUE len == 0 [L1035] len = 1 [L1038] COND FALSE !(!(((void*)0) != inner)) [L1039] EXPR inner->inner [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next [L1040] COND TRUE !(((void*)0) != inner->next) [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-01-1.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 109 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1113 SDtfs, 1026 SDslu, 1343 SDs, 0 SdLazy, 577 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 418 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 26609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 1/1 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 incorrect! Received shutdown request...