./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/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 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:10:43,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:43,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:43,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:43,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:43,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:43,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:43,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:43,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:43,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:43,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:43,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:43,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:43,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:43,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:43,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:43,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:43,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:43,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:43,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:43,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:43,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:43,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:43,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:43,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:43,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:43,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:43,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:43,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:43,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:43,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:43,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:43,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:43,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:43,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:43,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:43,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:43,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:43,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:43,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:43,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:43,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:10:43,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:43,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:43,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:43,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:43,529 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:43,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:43,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:10:43,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:43,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:10:43,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:43,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:10:43,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:10:43,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:10:43,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:10:43,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:43,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:43,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:10:43,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:43,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:43,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:10:43,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:10:43,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:43,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:43,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:10:43,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:10:43,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:43,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:10:43,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:10:43,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:43,536 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_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-11-28 03:10:43,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:43,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:43,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:43,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:43,869 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:43,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-28 03:10:43,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/data/c975c8460/16e0761c9b2948a5a0a090669f5248ac/FLAGed988e3c7 [2020-11-28 03:10:44,683 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:44,684 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-28 03:10:44,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/data/c975c8460/16e0761c9b2948a5a0a090669f5248ac/FLAGed988e3c7 [2020-11-28 03:10:45,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/data/c975c8460/16e0761c9b2948a5a0a090669f5248ac [2020-11-28 03:10:45,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:45,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:45,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:45,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:45,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:45,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6fda6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45, skipping insertion in model container [2020-11-28 03:10:45,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:45,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:45,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:45,399 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:45,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:45,571 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:45,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45 WrapperNode [2020-11-28 03:10:45,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:45,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:45,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:45,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:45,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:45,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:45,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:45,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:45,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... [2020-11-28 03:10:45,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:45,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:45,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:45,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:45,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:10:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:10:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:46,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:46,742 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-28 03:10:46,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:46 BoogieIcfgContainer [2020-11-28 03:10:46,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:46,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:10:46,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:10:46,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:10:46,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:45" (1/3) ... [2020-11-28 03:10:46,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7048e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:46, skipping insertion in model container [2020-11-28 03:10:46,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:45" (2/3) ... [2020-11-28 03:10:46,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7048e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:46, skipping insertion in model container [2020-11-28 03:10:46,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:46" (3/3) ... [2020-11-28 03:10:46,760 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-11-28 03:10:46,771 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:10:46,775 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-28 03:10:46,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-28 03:10:46,812 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:10:46,813 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:10:46,813 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:10:46,813 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:46,813 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:46,813 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:10:46,813 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:46,813 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:10:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-11-28 03:10:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:10:46,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:46,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:46,844 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:46,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:46,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-11-28 03:10:46,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:46,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481487411] [2020-11-28 03:10:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:47,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481487411] [2020-11-28 03:10:47,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:47,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:47,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376089674] [2020-11-28 03:10:47,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:47,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:47,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:47,153 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2020-11-28 03:10:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:47,667 INFO L93 Difference]: Finished difference Result 147 states and 221 transitions. [2020-11-28 03:10:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:47,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:10:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:47,699 INFO L225 Difference]: With dead ends: 147 [2020-11-28 03:10:47,700 INFO L226 Difference]: Without dead ends: 114 [2020-11-28 03:10:47,703 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 [2020-11-28 03:10:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-28 03:10:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-11-28 03:10:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 03:10:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-11-28 03:10:47,793 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-11-28 03:10:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:47,793 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-11-28 03:10:47,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:47,794 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-11-28 03:10:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:10:47,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:47,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:47,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:10:47,796 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:47,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-11-28 03:10:47,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:47,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868258563] [2020-11-28 03:10:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:47,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868258563] [2020-11-28 03:10:47,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:47,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:47,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250461611] [2020-11-28 03:10:47,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:47,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:47,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:47,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:47,900 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-11-28 03:10:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:48,313 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-11-28 03:10:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:10:48,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-28 03:10:48,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:48,316 INFO L225 Difference]: With dead ends: 117 [2020-11-28 03:10:48,316 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:10:48,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:10:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:10:48,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-28 03:10:48,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 03:10:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-11-28 03:10:48,331 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-11-28 03:10:48,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:48,332 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-11-28 03:10:48,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-11-28 03:10:48,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:10:48,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:48,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:48,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:10:48,333 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:48,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:48,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1410106030, now seen corresponding path program 1 times [2020-11-28 03:10:48,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:48,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841564347] [2020-11-28 03:10:48,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:48,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:48,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841564347] [2020-11-28 03:10:48,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:48,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:48,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929230291] [2020-11-28 03:10:48,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:48,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:48,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:48,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:48,460 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-11-28 03:10:48,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:48,799 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-11-28 03:10:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:48,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-28 03:10:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:48,801 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:10:48,801 INFO L226 Difference]: Without dead ends: 107 [2020-11-28 03:10:48,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-28 03:10:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-28 03:10:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-28 03:10:48,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-11-28 03:10:48,815 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-11-28 03:10:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:48,816 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-11-28 03:10:48,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:48,816 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-11-28 03:10:48,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:10:48,817 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:48,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:48,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:10:48,818 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:48,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:48,819 INFO L82 PathProgramCache]: Analyzing trace with hash 763620047, now seen corresponding path program 1 times [2020-11-28 03:10:48,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:48,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594970560] [2020-11-28 03:10:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:48,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594970560] [2020-11-28 03:10:48,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:48,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:48,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310352044] [2020-11-28 03:10:48,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:48,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:48,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:48,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:48,915 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-11-28 03:10:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:49,144 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-11-28 03:10:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:49,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:10:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:49,147 INFO L225 Difference]: With dead ends: 107 [2020-11-28 03:10:49,147 INFO L226 Difference]: Without dead ends: 103 [2020-11-28 03:10:49,148 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 [2020-11-28 03:10:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-28 03:10:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-11-28 03:10:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:10:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-11-28 03:10:49,169 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-11-28 03:10:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:49,169 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-11-28 03:10:49,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-11-28 03:10:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:10:49,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:49,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:49,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:10:49,173 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:49,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:49,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2078680795, now seen corresponding path program 1 times [2020-11-28 03:10:49,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:49,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577340920] [2020-11-28 03:10:49,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:49,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577340920] [2020-11-28 03:10:49,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:49,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:49,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307629967] [2020-11-28 03:10:49,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:49,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:49,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:49,299 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-11-28 03:10:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:49,645 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-11-28 03:10:49,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:49,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:10:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:49,647 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:10:49,647 INFO L226 Difference]: Without dead ends: 119 [2020-11-28 03:10:49,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-28 03:10:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-11-28 03:10:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:10:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-11-28 03:10:49,662 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-11-28 03:10:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:49,663 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-11-28 03:10:49,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-11-28 03:10:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:10:49,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:49,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:49,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:10:49,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:49,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2076587483, now seen corresponding path program 1 times [2020-11-28 03:10:49,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:49,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894679356] [2020-11-28 03:10:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:49,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894679356] [2020-11-28 03:10:49,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:49,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:49,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961874382] [2020-11-28 03:10:49,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:49,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:49,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:49,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:49,758 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-11-28 03:10:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:50,023 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-11-28 03:10:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:50,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:10:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:50,024 INFO L225 Difference]: With dead ends: 101 [2020-11-28 03:10:50,025 INFO L226 Difference]: Without dead ends: 99 [2020-11-28 03:10:50,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-28 03:10:50,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-28 03:10:50,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-28 03:10:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-11-28 03:10:50,033 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-11-28 03:10:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:50,033 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-11-28 03:10:50,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-11-28 03:10:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:10:50,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:50,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:50,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:10:50,035 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:50,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash -12678507, now seen corresponding path program 1 times [2020-11-28 03:10:50,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:50,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013492032] [2020-11-28 03:10:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:50,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013492032] [2020-11-28 03:10:50,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:50,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:50,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539236213] [2020-11-28 03:10:50,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:50,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:50,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:50,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:50,112 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-11-28 03:10:50,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:50,407 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-11-28 03:10:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:50,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-28 03:10:50,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:50,409 INFO L225 Difference]: With dead ends: 120 [2020-11-28 03:10:50,409 INFO L226 Difference]: Without dead ends: 118 [2020-11-28 03:10:50,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:50,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-28 03:10:50,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-11-28 03:10:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-28 03:10:50,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-11-28 03:10:50,417 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 14 [2020-11-28 03:10:50,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:50,417 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-11-28 03:10:50,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-11-28 03:10:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:10:50,418 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:50,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:50,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:10:50,419 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:50,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:50,420 INFO L82 PathProgramCache]: Analyzing trace with hash -14589102, now seen corresponding path program 1 times [2020-11-28 03:10:50,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:50,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11107156] [2020-11-28 03:10:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:50,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11107156] [2020-11-28 03:10:50,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:50,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:50,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569262224] [2020-11-28 03:10:50,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:50,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:50,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:50,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:50,672 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 6 states. [2020-11-28 03:10:51,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:51,029 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-11-28 03:10:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:10:51,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:10:51,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:51,031 INFO L225 Difference]: With dead ends: 130 [2020-11-28 03:10:51,031 INFO L226 Difference]: Without dead ends: 128 [2020-11-28 03:10:51,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-28 03:10:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2020-11-28 03:10:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:10:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-11-28 03:10:51,050 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-11-28 03:10:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:51,051 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-11-28 03:10:51,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-11-28 03:10:51,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:10:51,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:51,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:51,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:10:51,054 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:51,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:51,055 INFO L82 PathProgramCache]: Analyzing trace with hash 50303638, now seen corresponding path program 1 times [2020-11-28 03:10:51,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:51,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282588061] [2020-11-28 03:10:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:51,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282588061] [2020-11-28 03:10:51,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:51,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:51,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860898122] [2020-11-28 03:10:51,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:51,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:51,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:51,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:51,218 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-11-28 03:10:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:51,482 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-11-28 03:10:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:10:51,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:10:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:51,484 INFO L225 Difference]: With dead ends: 113 [2020-11-28 03:10:51,484 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:10:51,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:10:51,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-11-28 03:10:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-28 03:10:51,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-11-28 03:10:51,490 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-11-28 03:10:51,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:51,491 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-11-28 03:10:51,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-11-28 03:10:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:10:51,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:51,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:51,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:10:51,492 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:51,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:51,493 INFO L82 PathProgramCache]: Analyzing trace with hash -393027571, now seen corresponding path program 1 times [2020-11-28 03:10:51,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:51,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55843759] [2020-11-28 03:10:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:51,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55843759] [2020-11-28 03:10:51,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:51,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:51,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955302785] [2020-11-28 03:10:51,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:51,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:51,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:51,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:51,679 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-11-28 03:10:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:52,007 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-11-28 03:10:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:10:52,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 03:10:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:52,015 INFO L225 Difference]: With dead ends: 131 [2020-11-28 03:10:52,015 INFO L226 Difference]: Without dead ends: 129 [2020-11-28 03:10:52,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:52,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-28 03:10:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-11-28 03:10:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-28 03:10:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-11-28 03:10:52,021 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-11-28 03:10:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:52,022 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-11-28 03:10:52,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-11-28 03:10:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:10:52,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:52,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:52,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:10:52,023 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:52,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1135035499, now seen corresponding path program 1 times [2020-11-28 03:10:52,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:52,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120944795] [2020-11-28 03:10:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:52,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120944795] [2020-11-28 03:10:52,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:52,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:52,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151237034] [2020-11-28 03:10:52,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:52,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:52,108 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-11-28 03:10:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:52,223 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-11-28 03:10:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:52,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-28 03:10:52,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:52,226 INFO L225 Difference]: With dead ends: 107 [2020-11-28 03:10:52,226 INFO L226 Difference]: Without dead ends: 105 [2020-11-28 03:10:52,227 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 [2020-11-28 03:10:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-28 03:10:52,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-11-28 03:10:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-28 03:10:52,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-11-28 03:10:52,232 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-11-28 03:10:52,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:52,233 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-11-28 03:10:52,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-11-28 03:10:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:10:52,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:52,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:52,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:10:52,235 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:52,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:52,235 INFO L82 PathProgramCache]: Analyzing trace with hash -826355977, now seen corresponding path program 1 times [2020-11-28 03:10:52,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:52,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799082997] [2020-11-28 03:10:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:52,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799082997] [2020-11-28 03:10:52,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:52,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:52,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384275460] [2020-11-28 03:10:52,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:52,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:52,311 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-11-28 03:10:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:52,521 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-11-28 03:10:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:52,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-28 03:10:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:52,524 INFO L225 Difference]: With dead ends: 105 [2020-11-28 03:10:52,524 INFO L226 Difference]: Without dead ends: 101 [2020-11-28 03:10:52,524 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 [2020-11-28 03:10:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-28 03:10:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-28 03:10:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:10:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-28 03:10:52,531 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-11-28 03:10:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:52,532 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-28 03:10:52,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-28 03:10:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:10:52,535 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:52,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:52,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:10:52,536 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:52,537 INFO L82 PathProgramCache]: Analyzing trace with hash 171645234, now seen corresponding path program 1 times [2020-11-28 03:10:52,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:52,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633473708] [2020-11-28 03:10:52,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:52,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633473708] [2020-11-28 03:10:52,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:52,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:52,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557955629] [2020-11-28 03:10:52,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:52,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:52,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:52,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:52,647 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-11-28 03:10:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:53,001 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2020-11-28 03:10:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:10:53,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-28 03:10:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:53,004 INFO L225 Difference]: With dead ends: 117 [2020-11-28 03:10:53,004 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:10:53,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:10:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:10:53,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2020-11-28 03:10:53,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:10:53,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-11-28 03:10:53,010 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 18 [2020-11-28 03:10:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:53,010 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-11-28 03:10:53,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-11-28 03:10:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:10:53,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:53,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:53,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:10:53,012 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:53,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:53,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1598213575, now seen corresponding path program 1 times [2020-11-28 03:10:53,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:53,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375230764] [2020-11-28 03:10:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:53,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375230764] [2020-11-28 03:10:53,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:53,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:53,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312285336] [2020-11-28 03:10:53,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:53,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:53,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:53,129 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-11-28 03:10:53,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:53,506 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2020-11-28 03:10:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:10:53,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-28 03:10:53,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:53,508 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:10:53,508 INFO L226 Difference]: Without dead ends: 107 [2020-11-28 03:10:53,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:10:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-28 03:10:53,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2020-11-28 03:10:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-28 03:10:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2020-11-28 03:10:53,514 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2020-11-28 03:10:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:53,514 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2020-11-28 03:10:53,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2020-11-28 03:10:53,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:10:53,515 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:53,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:53,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:10:53,516 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:53,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:53,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1663106315, now seen corresponding path program 1 times [2020-11-28 03:10:53,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:53,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709386929] [2020-11-28 03:10:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709386929] [2020-11-28 03:10:53,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:53,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:10:53,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728102194] [2020-11-28 03:10:53,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:53,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:53,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:53,615 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 6 states. [2020-11-28 03:10:53,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:53,939 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2020-11-28 03:10:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:53,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-28 03:10:53,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:53,941 INFO L225 Difference]: With dead ends: 91 [2020-11-28 03:10:53,941 INFO L226 Difference]: Without dead ends: 54 [2020-11-28 03:10:53,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:10:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-28 03:10:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-28 03:10:53,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-28 03:10:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-11-28 03:10:53,944 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-11-28 03:10:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:53,945 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-11-28 03:10:53,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-11-28 03:10:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-28 03:10:53,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:53,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:53,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:10:53,947 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:53,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1909250009, now seen corresponding path program 1 times [2020-11-28 03:10:53,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:53,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217095345] [2020-11-28 03:10:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:54,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217095345] [2020-11-28 03:10:54,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:54,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-28 03:10:54,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830790714] [2020-11-28 03:10:54,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:10:54,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:54,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:10:54,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:10:54,185 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-11-28 03:10:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:54,408 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-11-28 03:10:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:10:54,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-11-28 03:10:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:54,410 INFO L225 Difference]: With dead ends: 54 [2020-11-28 03:10:54,410 INFO L226 Difference]: Without dead ends: 52 [2020-11-28 03:10:54,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:10:54,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-28 03:10:54,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-28 03:10:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-28 03:10:54,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-11-28 03:10:54,413 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-11-28 03:10:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:54,414 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-11-28 03:10:54,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:10:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-11-28 03:10:54,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-28 03:10:54,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:54,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:54,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:10:54,418 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:54,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:54,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1909269869, now seen corresponding path program 1 times [2020-11-28 03:10:54,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:54,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921502761] [2020-11-28 03:10:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:54,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921502761] [2020-11-28 03:10:54,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:54,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-28 03:10:54,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144994239] [2020-11-28 03:10:54,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:10:54,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:54,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:10:54,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:10:54,610 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-11-28 03:10:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:54,849 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-11-28 03:10:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:10:54,850 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-11-28 03:10:54,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:54,851 INFO L225 Difference]: With dead ends: 59 [2020-11-28 03:10:54,851 INFO L226 Difference]: Without dead ends: 57 [2020-11-28 03:10:54,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:10:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-28 03:10:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-11-28 03:10:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-28 03:10:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-11-28 03:10:54,855 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-11-28 03:10:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:54,855 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-11-28 03:10:54,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:10:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-11-28 03:10:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 03:10:54,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:54,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:54,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:10:54,857 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash -942785412, now seen corresponding path program 1 times [2020-11-28 03:10:54,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:54,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112563867] [2020-11-28 03:10:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:55,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112563867] [2020-11-28 03:10:55,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:55,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:10:55,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752315205] [2020-11-28 03:10:55,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:10:55,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:55,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:10:55,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:55,121 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-11-28 03:10:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:55,279 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-11-28 03:10:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:55,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-11-28 03:10:55,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:55,280 INFO L225 Difference]: With dead ends: 50 [2020-11-28 03:10:55,280 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 03:10:55,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:10:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 03:10:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-28 03:10:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-28 03:10:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-11-28 03:10:55,283 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-11-28 03:10:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:55,283 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-11-28 03:10:55,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:10:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-11-28 03:10:55,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 03:10:55,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:55,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:55,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:10:55,287 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_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.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:55,287 INFO L82 PathProgramCache]: Analyzing trace with hash -942169732, now seen corresponding path program 1 times [2020-11-28 03:10:55,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:55,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596202938] [2020-11-28 03:10:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:55,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:55,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596202938] [2020-11-28 03:10:55,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:55,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:10:55,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359542353] [2020-11-28 03:10:55,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:10:55,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:55,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:10:55,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:55,482 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-11-28 03:10:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:55,647 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-11-28 03:10:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:10:55,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-11-28 03:10:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:55,648 INFO L225 Difference]: With dead ends: 50 [2020-11-28 03:10:55,648 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:10:55,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:10:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:10:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:10:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:10:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:10:55,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-28 03:10:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:55,650 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:55,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:10:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:10:55,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:10:55,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:10:55,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:10:55,853 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,853 INFO L274 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-11-28 03:10:55,853 INFO L274 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-11-28 03:10:55,853 INFO L274 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,854 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,855 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,856 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,857 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,857 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,858 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,860 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,861 INFO L274 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-11-28 03:10:55,862 INFO L277 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-11-28 03:10:55,862 INFO L274 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-11-28 03:10:55,863 INFO L274 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-11-28 03:10:55,863 INFO L274 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-11-28 03:10:55,863 INFO L274 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-11-28 03:10:55,864 INFO L270 CegarLoopResult]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-28 03:10:55,864 INFO L274 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-11-28 03:10:55,864 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,864 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,864 INFO L274 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-11-28 03:10:55,864 INFO L274 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L270 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-11-28 03:10:55,865 INFO L274 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L277 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-11-28 03:10:55,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L270 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-11-28 03:10:55,867 INFO L274 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L270 CegarLoopResult]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-11-28 03:10:55,868 INFO L274 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-11-28 03:10:55,869 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:10:55,869 INFO L274 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-11-28 03:10:55,869 INFO L274 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-11-28 03:10:55,870 INFO L274 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-11-28 03:10:55,871 INFO L274 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:10:55,872 INFO L274 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:10:55,873 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:10:55,874 INFO L274 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-11-28 03:10:55,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:55 BoogieIcfgContainer [2020-11-28 03:10:55,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:55,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:55,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:55,902 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:55,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:46" (3/4) ... [2020-11-28 03:10:55,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:10:55,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:10:55,940 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:10:55,942 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:10:55,943 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:10:56,120 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_066e3acd-ba8a-4ff9-8ee8-0563d28e5b20/bin/uautomizer/witness.graphml [2020-11-28 03:10:56,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:56,122 INFO L168 Benchmark]: Toolchain (without parser) took 11099.78 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 81.1 MB in the beginning and 45.6 MB in the end (delta: 35.6 MB). Peak memory consumption was 91.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,123 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:56,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.75 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 82.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.56 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 79.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,124 INFO L168 Benchmark]: Boogie Preprocessor took 58.65 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,125 INFO L168 Benchmark]: RCFGBuilder took 1036.98 ms. Allocated memory is still 111.1 MB. Free memory was 76.9 MB in the beginning and 59.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,125 INFO L168 Benchmark]: TraceAbstraction took 9151.97 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 58.8 MB in the beginning and 58.2 MB in the end (delta: 674.1 kB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,126 INFO L168 Benchmark]: Witness Printer took 217.95 ms. Allocated memory is still 167.8 MB. Free memory was 58.2 MB in the beginning and 46.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:56,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.75 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 82.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.56 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 79.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.65 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1036.98 ms. Allocated memory is still 111.1 MB. Free memory was 76.9 MB in the beginning and 59.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9151.97 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 58.8 MB in the beginning and 58.2 MB in the end (delta: 674.1 kB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. * Witness Printer took 217.95 ms. Allocated memory is still 167.8 MB. Free memory was 58.2 MB in the beginning and 46.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1865 SDslu, 1430 SDs, 0 SdLazy, 3491 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred 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, 19 MinimizatonAttempts, 133 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4287 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 257 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 29885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...