./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31de2fb67e84e52bb7705ac8720e6b139fef2d91 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:17,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:17,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:17,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:17,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:17,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:17,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:17,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:17,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:17,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:17,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:17,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:17,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:17,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:17,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:17,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:17,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:17,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:17,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:17,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:17,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:17,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:17,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:17,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:17,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:17,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:17,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:17,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:17,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:17,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:17,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:17,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:17,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:17,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:17,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:17,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:17,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:17,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:17,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:17,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:17,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:17,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:56:17,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:17,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:17,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:17,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:17,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:56:17,683 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:17,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:17,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:17,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:17,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 31de2fb67e84e52bb7705ac8720e6b139fef2d91 [2019-10-22 08:56:17,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:17,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:17,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:17,731 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:17,732 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:17,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2019-10-22 08:56:17,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/data/cc4939323/afd2b99401c14951844f1dd90d9a07aa/FLAG063b431b0 [2019-10-22 08:56:18,277 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:18,277 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/sv-benchmarks/c/forester-heap/sll-01-2.i [2019-10-22 08:56:18,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/data/cc4939323/afd2b99401c14951844f1dd90d9a07aa/FLAG063b431b0 [2019-10-22 08:56:18,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/data/cc4939323/afd2b99401c14951844f1dd90d9a07aa [2019-10-22 08:56:18,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:18,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:56:18,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:18,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:18,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:18,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350c055c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:18, skipping insertion in model container [2019-10-22 08:56:18,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:18" (1/1) ... [2019-10-22 08:56:18,606 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:18,648 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:18,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:18,979 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:19,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:19,102 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:19,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19 WrapperNode [2019-10-22 08:56:19,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:19,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:19,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:19,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:19,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... [2019-10-22 08:56:19,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:19,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:19,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:19,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:19,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:56:19,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:19,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:56:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:56:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:56:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:56:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:56:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:56:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:56:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:56:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:56:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:56:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:56:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:56:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:56:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:56:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:56:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:56:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:56:19,245 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:56:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:56:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:56:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:56:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:56:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:56:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:56:19,254 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:56:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:56:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:56:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:19,943 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:19,943 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-10-22 08:56:19,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19 BoogieIcfgContainer [2019-10-22 08:56:19,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:19,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:19,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:19,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:19,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:18" (1/3) ... [2019-10-22 08:56:19,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7ed578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:19, skipping insertion in model container [2019-10-22 08:56:19,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:19" (2/3) ... [2019-10-22 08:56:19,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7ed578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:19, skipping insertion in model container [2019-10-22 08:56:19,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19" (3/3) ... [2019-10-22 08:56:19,951 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2019-10-22 08:56:19,963 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:19,970 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2019-10-22 08:56:19,980 INFO L249 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2019-10-22 08:56:19,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:19,997 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:56:19,997 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:19,997 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:19,997 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:19,997 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:19,997 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:19,997 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-10-22 08:56:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:56:20,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:20,023 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:20,024 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:20,029 INFO L82 PathProgramCache]: Analyzing trace with hash -928996123, now seen corresponding path program 1 times [2019-10-22 08:56:20,036 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:20,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506370123] [2019-10-22 08:56:20,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:20,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:20,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:20,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506370123] [2019-10-22 08:56:20,187 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:20,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:20,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921451791] [2019-10-22 08:56:20,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:20,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:20,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:20,203 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2019-10-22 08:56:20,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:20,562 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2019-10-22 08:56:20,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:20,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:56:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:20,574 INFO L225 Difference]: With dead ends: 172 [2019-10-22 08:56:20,574 INFO L226 Difference]: Without dead ends: 168 [2019-10-22 08:56:20,576 INFO L600 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 [2019-10-22 08:56:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-10-22 08:56:20,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 163. [2019-10-22 08:56:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-22 08:56:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 176 transitions. [2019-10-22 08:56:20,620 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 176 transitions. Word has length 7 [2019-10-22 08:56:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:20,620 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 176 transitions. [2019-10-22 08:56:20,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 176 transitions. [2019-10-22 08:56:20,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:56:20,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:20,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:20,622 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:20,622 INFO L82 PathProgramCache]: Analyzing trace with hash -928996122, now seen corresponding path program 1 times [2019-10-22 08:56:20,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:20,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940219975] [2019-10-22 08:56:20,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:20,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:20,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:20,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940219975] [2019-10-22 08:56:20,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:20,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:20,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091070091] [2019-10-22 08:56:20,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:20,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:20,670 INFO L87 Difference]: Start difference. First operand 163 states and 176 transitions. Second operand 4 states. [2019-10-22 08:56:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:21,089 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2019-10-22 08:56:21,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:21,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:56:21,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:21,091 INFO L225 Difference]: With dead ends: 187 [2019-10-22 08:56:21,091 INFO L226 Difference]: Without dead ends: 187 [2019-10-22 08:56:21,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-10-22 08:56:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 173. [2019-10-22 08:56:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-22 08:56:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 194 transitions. [2019-10-22 08:56:21,108 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 194 transitions. Word has length 7 [2019-10-22 08:56:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:21,108 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 194 transitions. [2019-10-22 08:56:21,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 194 transitions. [2019-10-22 08:56:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:56:21,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:21,109 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:21,109 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,110 INFO L82 PathProgramCache]: Analyzing trace with hash -694003629, now seen corresponding path program 1 times [2019-10-22 08:56:21,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:21,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107562111] [2019-10-22 08:56:21,110 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,110 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:21,182 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107562111] [2019-10-22 08:56:21,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:21,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:21,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620987456] [2019-10-22 08:56:21,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:21,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:21,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:21,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:21,186 INFO L87 Difference]: Start difference. First operand 173 states and 194 transitions. Second operand 6 states. [2019-10-22 08:56:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:21,748 INFO L93 Difference]: Finished difference Result 297 states and 327 transitions. [2019-10-22 08:56:21,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:21,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-22 08:56:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:21,750 INFO L225 Difference]: With dead ends: 297 [2019-10-22 08:56:21,751 INFO L226 Difference]: Without dead ends: 297 [2019-10-22 08:56:21,751 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-10-22 08:56:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 172. [2019-10-22 08:56:21,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 08:56:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2019-10-22 08:56:21,774 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 14 [2019-10-22 08:56:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:21,774 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2019-10-22 08:56:21,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2019-10-22 08:56:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:56:21,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:21,775 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:21,775 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:21,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:21,776 INFO L82 PathProgramCache]: Analyzing trace with hash -694003628, now seen corresponding path program 1 times [2019-10-22 08:56:21,776 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:21,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729663329] [2019-10-22 08:56:21,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:21,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:21,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:21,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729663329] [2019-10-22 08:56:21,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:21,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:21,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248594272] [2019-10-22 08:56:21,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:21,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:21,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:21,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:21,916 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand 6 states. [2019-10-22 08:56:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:22,467 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2019-10-22 08:56:22,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:22,468 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-22 08:56:22,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:22,469 INFO L225 Difference]: With dead ends: 321 [2019-10-22 08:56:22,469 INFO L226 Difference]: Without dead ends: 321 [2019-10-22 08:56:22,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-22 08:56:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 171. [2019-10-22 08:56:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 08:56:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 192 transitions. [2019-10-22 08:56:22,478 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 192 transitions. Word has length 14 [2019-10-22 08:56:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:22,479 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 192 transitions. [2019-10-22 08:56:22,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 192 transitions. [2019-10-22 08:56:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:56:22,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:22,480 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:22,480 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:22,480 INFO L82 PathProgramCache]: Analyzing trace with hash 910461370, now seen corresponding path program 1 times [2019-10-22 08:56:22,481 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:22,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005181467] [2019-10-22 08:56:22,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:22,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:22,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:22,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005181467] [2019-10-22 08:56:22,593 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:22,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:22,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051496797] [2019-10-22 08:56:22,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:56:22,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:22,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:56:22,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:22,595 INFO L87 Difference]: Start difference. First operand 171 states and 192 transitions. Second operand 9 states. [2019-10-22 08:56:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:23,432 INFO L93 Difference]: Finished difference Result 299 states and 327 transitions. [2019-10-22 08:56:23,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:56:23,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-10-22 08:56:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:23,434 INFO L225 Difference]: With dead ends: 299 [2019-10-22 08:56:23,434 INFO L226 Difference]: Without dead ends: 299 [2019-10-22 08:56:23,435 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:56:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2019-10-22 08:56:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 170. [2019-10-22 08:56:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-10-22 08:56:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 191 transitions. [2019-10-22 08:56:23,442 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 191 transitions. Word has length 17 [2019-10-22 08:56:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:23,442 INFO L462 AbstractCegarLoop]: Abstraction has 170 states and 191 transitions. [2019-10-22 08:56:23,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:56:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 191 transitions. [2019-10-22 08:56:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:56:23,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:23,443 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:23,443 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:23,444 INFO L82 PathProgramCache]: Analyzing trace with hash 910461371, now seen corresponding path program 1 times [2019-10-22 08:56:23,444 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:23,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357881445] [2019-10-22 08:56:23,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:23,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:23,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:23,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357881445] [2019-10-22 08:56:23,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:23,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:23,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396595502] [2019-10-22 08:56:23,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:56:23,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:23,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:56:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:23,584 INFO L87 Difference]: Start difference. First operand 170 states and 191 transitions. Second operand 9 states. [2019-10-22 08:56:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:24,599 INFO L93 Difference]: Finished difference Result 300 states and 328 transitions. [2019-10-22 08:56:24,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:56:24,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-10-22 08:56:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:24,611 INFO L225 Difference]: With dead ends: 300 [2019-10-22 08:56:24,611 INFO L226 Difference]: Without dead ends: 300 [2019-10-22 08:56:24,611 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:56:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-10-22 08:56:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 169. [2019-10-22 08:56:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-10-22 08:56:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2019-10-22 08:56:24,627 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 17 [2019-10-22 08:56:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:24,627 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2019-10-22 08:56:24,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:56:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2019-10-22 08:56:24,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 08:56:24,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:24,628 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:24,628 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:24,628 INFO L82 PathProgramCache]: Analyzing trace with hash -831607406, now seen corresponding path program 1 times [2019-10-22 08:56:24,629 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:24,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911875579] [2019-10-22 08:56:24,629 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:24,629 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:24,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:24,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911875579] [2019-10-22 08:56:24,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:24,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:24,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050623119] [2019-10-22 08:56:24,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:24,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:24,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:24,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:24,694 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand 6 states. [2019-10-22 08:56:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:24,948 INFO L93 Difference]: Finished difference Result 252 states and 279 transitions. [2019-10-22 08:56:24,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:24,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-10-22 08:56:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:24,950 INFO L225 Difference]: With dead ends: 252 [2019-10-22 08:56:24,950 INFO L226 Difference]: Without dead ends: 252 [2019-10-22 08:56:24,950 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:24,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-10-22 08:56:24,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 172. [2019-10-22 08:56:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 08:56:24,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2019-10-22 08:56:24,955 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 21 [2019-10-22 08:56:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:24,955 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2019-10-22 08:56:24,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2019-10-22 08:56:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:56:24,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:24,956 INFO L380 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] [2019-10-22 08:56:24,956 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:24,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1311532823, now seen corresponding path program 1 times [2019-10-22 08:56:24,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:24,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264502222] [2019-10-22 08:56:24,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:24,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:24,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:25,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264502222] [2019-10-22 08:56:25,011 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:25,011 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:25,011 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128343442] [2019-10-22 08:56:25,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:56:25,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:25,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:56:25,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:25,012 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand 5 states. [2019-10-22 08:56:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:25,258 INFO L93 Difference]: Finished difference Result 174 states and 192 transitions. [2019-10-22 08:56:25,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:25,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-10-22 08:56:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:25,260 INFO L225 Difference]: With dead ends: 174 [2019-10-22 08:56:25,260 INFO L226 Difference]: Without dead ends: 174 [2019-10-22 08:56:25,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-10-22 08:56:25,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 163. [2019-10-22 08:56:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-22 08:56:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2019-10-22 08:56:25,264 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 23 [2019-10-22 08:56:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:25,264 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2019-10-22 08:56:25,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:56:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2019-10-22 08:56:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:56:25,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:25,265 INFO L380 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] [2019-10-22 08:56:25,266 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:25,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1311532824, now seen corresponding path program 1 times [2019-10-22 08:56:25,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:25,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273571874] [2019-10-22 08:56:25,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:25,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:25,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:25,343 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273571874] [2019-10-22 08:56:25,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:25,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:56:25,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123028978] [2019-10-22 08:56:25,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:56:25,344 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:25,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:56:25,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:25,344 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand 8 states. [2019-10-22 08:56:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:25,640 INFO L93 Difference]: Finished difference Result 220 states and 237 transitions. [2019-10-22 08:56:25,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:25,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2019-10-22 08:56:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:25,643 INFO L225 Difference]: With dead ends: 220 [2019-10-22 08:56:25,643 INFO L226 Difference]: Without dead ends: 220 [2019-10-22 08:56:25,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:25,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-22 08:56:25,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 186. [2019-10-22 08:56:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-22 08:56:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2019-10-22 08:56:25,651 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 23 [2019-10-22 08:56:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:25,652 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2019-10-22 08:56:25,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:56:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2019-10-22 08:56:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:56:25,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:25,653 INFO L380 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] [2019-10-22 08:56:25,653 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:25,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:25,654 INFO L82 PathProgramCache]: Analyzing trace with hash 556899944, now seen corresponding path program 1 times [2019-10-22 08:56:25,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:25,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949138741] [2019-10-22 08:56:25,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:25,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:25,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:25,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949138741] [2019-10-22 08:56:25,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:25,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:25,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627530752] [2019-10-22 08:56:25,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:25,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:25,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:25,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:25,704 INFO L87 Difference]: Start difference. First operand 186 states and 218 transitions. Second operand 7 states. [2019-10-22 08:56:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:26,074 INFO L93 Difference]: Finished difference Result 271 states and 320 transitions. [2019-10-22 08:56:26,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:56:26,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-10-22 08:56:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:26,076 INFO L225 Difference]: With dead ends: 271 [2019-10-22 08:56:26,077 INFO L226 Difference]: Without dead ends: 271 [2019-10-22 08:56:26,077 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:56:26,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-22 08:56:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 185. [2019-10-22 08:56:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-10-22 08:56:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2019-10-22 08:56:26,082 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 26 [2019-10-22 08:56:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:26,083 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2019-10-22 08:56:26,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2019-10-22 08:56:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:56:26,083 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:26,083 INFO L380 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] [2019-10-22 08:56:26,084 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:26,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:26,084 INFO L82 PathProgramCache]: Analyzing trace with hash 556899945, now seen corresponding path program 1 times [2019-10-22 08:56:26,084 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:26,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71396149] [2019-10-22 08:56:26,084 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,085 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:26,153 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71396149] [2019-10-22 08:56:26,153 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:26,153 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:26,153 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247881836] [2019-10-22 08:56:26,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:26,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:26,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:26,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:26,154 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand 7 states. [2019-10-22 08:56:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:26,595 INFO L93 Difference]: Finished difference Result 288 states and 346 transitions. [2019-10-22 08:56:26,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:56:26,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-10-22 08:56:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:26,596 INFO L225 Difference]: With dead ends: 288 [2019-10-22 08:56:26,596 INFO L226 Difference]: Without dead ends: 288 [2019-10-22 08:56:26,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:56:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-10-22 08:56:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 172. [2019-10-22 08:56:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 08:56:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 203 transitions. [2019-10-22 08:56:26,602 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 203 transitions. Word has length 26 [2019-10-22 08:56:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:26,603 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 203 transitions. [2019-10-22 08:56:26,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 203 transitions. [2019-10-22 08:56:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:56:26,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:26,604 INFO L380 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] [2019-10-22 08:56:26,604 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:26,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:26,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1620647415, now seen corresponding path program 1 times [2019-10-22 08:56:26,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:26,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101249127] [2019-10-22 08:56:26,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:26,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101249127] [2019-10-22 08:56:26,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:26,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:26,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134617565] [2019-10-22 08:56:26,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:26,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:26,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:26,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:26,686 INFO L87 Difference]: Start difference. First operand 172 states and 203 transitions. Second operand 6 states. [2019-10-22 08:56:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:26,910 INFO L93 Difference]: Finished difference Result 196 states and 212 transitions. [2019-10-22 08:56:26,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:56:26,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-10-22 08:56:26,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:26,911 INFO L225 Difference]: With dead ends: 196 [2019-10-22 08:56:26,911 INFO L226 Difference]: Without dead ends: 196 [2019-10-22 08:56:26,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-22 08:56:26,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-10-22 08:56:26,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 08:56:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 201 transitions. [2019-10-22 08:56:26,916 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 201 transitions. Word has length 29 [2019-10-22 08:56:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:26,917 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 201 transitions. [2019-10-22 08:56:26,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 201 transitions. [2019-10-22 08:56:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:56:26,918 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:26,918 INFO L380 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] [2019-10-22 08:56:26,919 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:26,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:26,919 INFO L82 PathProgramCache]: Analyzing trace with hash -51857924, now seen corresponding path program 1 times [2019-10-22 08:56:26,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:26,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150443967] [2019-10-22 08:56:26,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:26,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:27,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150443967] [2019-10-22 08:56:27,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:27,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 08:56:27,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336796963] [2019-10-22 08:56:27,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:56:27,032 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:27,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:56:27,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:27,033 INFO L87 Difference]: Start difference. First operand 172 states and 201 transitions. Second operand 9 states. [2019-10-22 08:56:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:27,458 INFO L93 Difference]: Finished difference Result 263 states and 300 transitions. [2019-10-22 08:56:27,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 08:56:27,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2019-10-22 08:56:27,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:27,459 INFO L225 Difference]: With dead ends: 263 [2019-10-22 08:56:27,459 INFO L226 Difference]: Without dead ends: 263 [2019-10-22 08:56:27,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:56:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-10-22 08:56:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 184. [2019-10-22 08:56:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 08:56:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 214 transitions. [2019-10-22 08:56:27,462 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 214 transitions. Word has length 33 [2019-10-22 08:56:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:27,463 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 214 transitions. [2019-10-22 08:56:27,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:56:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 214 transitions. [2019-10-22 08:56:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:56:27,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:27,463 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:27,463 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:27,464 INFO L82 PathProgramCache]: Analyzing trace with hash -2064017871, now seen corresponding path program 1 times [2019-10-22 08:56:27,464 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:27,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145764130] [2019-10-22 08:56:27,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:27,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:27,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:27,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145764130] [2019-10-22 08:56:27,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904475848] [2019-10-22 08:56:27,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:27,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-22 08:56:27,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:27,761 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:56:27,763 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,775 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:56:27,776 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,787 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,787 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,788 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-10-22 08:56:27,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:27,827 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-10-22 08:56:27,827 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,841 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:27,849 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-10-22 08:56:27,849 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,865 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,866 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,866 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2019-10-22 08:56:27,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:27,942 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2019-10-22 08:56:27,942 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,954 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:27,960 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,960 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2019-10-22 08:56:27,960 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,967 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:27,969 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:27,969 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:7 [2019-10-22 08:56:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:27,978 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:56:27,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2019-10-22 08:56:27,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835220418] [2019-10-22 08:56:27,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:56:27,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:27,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:56:27,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:27,980 INFO L87 Difference]: Start difference. First operand 184 states and 214 transitions. Second operand 11 states. [2019-10-22 08:56:28,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:28,578 INFO L93 Difference]: Finished difference Result 303 states and 334 transitions. [2019-10-22 08:56:28,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:56:28,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2019-10-22 08:56:28,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:28,579 INFO L225 Difference]: With dead ends: 303 [2019-10-22 08:56:28,579 INFO L226 Difference]: Without dead ends: 303 [2019-10-22 08:56:28,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2019-10-22 08:56:28,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2019-10-22 08:56:28,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 212. [2019-10-22 08:56:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-10-22 08:56:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 254 transitions. [2019-10-22 08:56:28,589 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 254 transitions. Word has length 35 [2019-10-22 08:56:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:28,592 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 254 transitions. [2019-10-22 08:56:28,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:56:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 254 transitions. [2019-10-22 08:56:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:56:28,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:28,593 INFO L380 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] [2019-10-22 08:56:28,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:28,794 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,794 INFO L82 PathProgramCache]: Analyzing trace with hash 669806936, now seen corresponding path program 1 times [2019-10-22 08:56:28,794 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458464530] [2019-10-22 08:56:28,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:28,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458464530] [2019-10-22 08:56:28,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:28,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:28,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531514783] [2019-10-22 08:56:28,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:28,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:28,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:28,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:28,854 INFO L87 Difference]: Start difference. First operand 212 states and 254 transitions. Second operand 6 states. [2019-10-22 08:56:29,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:29,224 INFO L93 Difference]: Finished difference Result 314 states and 375 transitions. [2019-10-22 08:56:29,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:29,224 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 08:56:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:29,225 INFO L225 Difference]: With dead ends: 314 [2019-10-22 08:56:29,225 INFO L226 Difference]: Without dead ends: 314 [2019-10-22 08:56:29,225 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-10-22 08:56:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 211. [2019-10-22 08:56:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-22 08:56:29,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 253 transitions. [2019-10-22 08:56:29,231 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 253 transitions. Word has length 35 [2019-10-22 08:56:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:29,231 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 253 transitions. [2019-10-22 08:56:29,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 253 transitions. [2019-10-22 08:56:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:56:29,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:29,232 INFO L380 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] [2019-10-22 08:56:29,232 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:29,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:29,232 INFO L82 PathProgramCache]: Analyzing trace with hash 669806937, now seen corresponding path program 1 times [2019-10-22 08:56:29,233 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:29,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928704857] [2019-10-22 08:56:29,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:29,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928704857] [2019-10-22 08:56:29,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:29,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:29,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667242684] [2019-10-22 08:56:29,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:29,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:29,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:29,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:29,303 INFO L87 Difference]: Start difference. First operand 211 states and 253 transitions. Second operand 6 states. [2019-10-22 08:56:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:29,714 INFO L93 Difference]: Finished difference Result 341 states and 410 transitions. [2019-10-22 08:56:29,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:29,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 08:56:29,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:29,715 INFO L225 Difference]: With dead ends: 341 [2019-10-22 08:56:29,715 INFO L226 Difference]: Without dead ends: 341 [2019-10-22 08:56:29,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-22 08:56:29,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 210. [2019-10-22 08:56:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-22 08:56:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 252 transitions. [2019-10-22 08:56:29,721 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 252 transitions. Word has length 35 [2019-10-22 08:56:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:29,721 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 252 transitions. [2019-10-22 08:56:29,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 252 transitions. [2019-10-22 08:56:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:56:29,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:29,722 INFO L380 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] [2019-10-22 08:56:29,722 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:29,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:29,722 INFO L82 PathProgramCache]: Analyzing trace with hash -283329296, now seen corresponding path program 1 times [2019-10-22 08:56:29,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:29,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223455675] [2019-10-22 08:56:29,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:29,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223455675] [2019-10-22 08:56:29,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:29,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-22 08:56:29,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418711330] [2019-10-22 08:56:29,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:56:29,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:29,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:56:29,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:56:29,857 INFO L87 Difference]: Start difference. First operand 210 states and 252 transitions. Second operand 12 states. [2019-10-22 08:56:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:30,897 INFO L93 Difference]: Finished difference Result 410 states and 463 transitions. [2019-10-22 08:56:30,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:56:30,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2019-10-22 08:56:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:30,901 INFO L225 Difference]: With dead ends: 410 [2019-10-22 08:56:30,901 INFO L226 Difference]: Without dead ends: 410 [2019-10-22 08:56:30,901 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2019-10-22 08:56:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-10-22 08:56:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 213. [2019-10-22 08:56:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-10-22 08:56:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 254 transitions. [2019-10-22 08:56:30,911 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 254 transitions. Word has length 37 [2019-10-22 08:56:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:30,911 INFO L462 AbstractCegarLoop]: Abstraction has 213 states and 254 transitions. [2019-10-22 08:56:30,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:56:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 254 transitions. [2019-10-22 08:56:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:56:30,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:30,912 INFO L380 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] [2019-10-22 08:56:30,912 INFO L410 AbstractCegarLoop]: === Iteration 18 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:30,912 INFO L82 PathProgramCache]: Analyzing trace with hash -283329295, now seen corresponding path program 1 times [2019-10-22 08:56:30,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:30,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120197853] [2019-10-22 08:56:30,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:30,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:31,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120197853] [2019-10-22 08:56:31,110 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:31,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-22 08:56:31,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570529041] [2019-10-22 08:56:31,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:56:31,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:31,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:56:31,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:56:31,111 INFO L87 Difference]: Start difference. First operand 213 states and 254 transitions. Second operand 12 states. [2019-10-22 08:56:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:32,133 INFO L93 Difference]: Finished difference Result 458 states and 512 transitions. [2019-10-22 08:56:32,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 08:56:32,134 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2019-10-22 08:56:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:32,135 INFO L225 Difference]: With dead ends: 458 [2019-10-22 08:56:32,135 INFO L226 Difference]: Without dead ends: 458 [2019-10-22 08:56:32,135 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2019-10-22 08:56:32,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2019-10-22 08:56:32,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 219. [2019-10-22 08:56:32,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-10-22 08:56:32,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 259 transitions. [2019-10-22 08:56:32,141 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 259 transitions. Word has length 37 [2019-10-22 08:56:32,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:32,141 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 259 transitions. [2019-10-22 08:56:32,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:56:32,142 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 259 transitions. [2019-10-22 08:56:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 08:56:32,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:32,142 INFO L380 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] [2019-10-22 08:56:32,143 INFO L410 AbstractCegarLoop]: === Iteration 19 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:32,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:32,143 INFO L82 PathProgramCache]: Analyzing trace with hash -199509631, now seen corresponding path program 1 times [2019-10-22 08:56:32,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:32,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819867176] [2019-10-22 08:56:32,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:32,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:32,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:32,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819867176] [2019-10-22 08:56:32,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:32,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:32,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844483258] [2019-10-22 08:56:32,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:56:32,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:32,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:56:32,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:32,235 INFO L87 Difference]: Start difference. First operand 219 states and 259 transitions. Second operand 9 states. [2019-10-22 08:56:32,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:32,614 INFO L93 Difference]: Finished difference Result 232 states and 274 transitions. [2019-10-22 08:56:32,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:56:32,615 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2019-10-22 08:56:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:32,615 INFO L225 Difference]: With dead ends: 232 [2019-10-22 08:56:32,615 INFO L226 Difference]: Without dead ends: 232 [2019-10-22 08:56:32,616 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:56:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-22 08:56:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 218. [2019-10-22 08:56:32,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-22 08:56:32,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 258 transitions. [2019-10-22 08:56:32,619 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 258 transitions. Word has length 38 [2019-10-22 08:56:32,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:32,619 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 258 transitions. [2019-10-22 08:56:32,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:56:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 258 transitions. [2019-10-22 08:56:32,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 08:56:32,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:32,620 INFO L380 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] [2019-10-22 08:56:32,620 INFO L410 AbstractCegarLoop]: === Iteration 20 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:32,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:32,621 INFO L82 PathProgramCache]: Analyzing trace with hash -199509630, now seen corresponding path program 1 times [2019-10-22 08:56:32,621 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:32,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332877946] [2019-10-22 08:56:32,621 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:32,621 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:32,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:32,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332877946] [2019-10-22 08:56:32,725 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:32,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:32,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772703777] [2019-10-22 08:56:32,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:56:32,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:32,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:56:32,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:32,726 INFO L87 Difference]: Start difference. First operand 218 states and 258 transitions. Second operand 9 states. [2019-10-22 08:56:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:33,142 INFO L93 Difference]: Finished difference Result 231 states and 273 transitions. [2019-10-22 08:56:33,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:56:33,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2019-10-22 08:56:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:33,143 INFO L225 Difference]: With dead ends: 231 [2019-10-22 08:56:33,143 INFO L226 Difference]: Without dead ends: 231 [2019-10-22 08:56:33,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:56:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-10-22 08:56:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 217. [2019-10-22 08:56:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-22 08:56:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 257 transitions. [2019-10-22 08:56:33,147 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 257 transitions. Word has length 38 [2019-10-22 08:56:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:33,147 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 257 transitions. [2019-10-22 08:56:33,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:56:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 257 transitions. [2019-10-22 08:56:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 08:56:33,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:33,148 INFO L380 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] [2019-10-22 08:56:33,148 INFO L410 AbstractCegarLoop]: === Iteration 21 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1753341337, now seen corresponding path program 1 times [2019-10-22 08:56:33,149 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:33,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150784203] [2019-10-22 08:56:33,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:33,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150784203] [2019-10-22 08:56:33,231 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:33,231 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:33,231 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175592884] [2019-10-22 08:56:33,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:56:33,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:33,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:56:33,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:33,232 INFO L87 Difference]: Start difference. First operand 217 states and 257 transitions. Second operand 8 states. [2019-10-22 08:56:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:33,519 INFO L93 Difference]: Finished difference Result 233 states and 273 transitions. [2019-10-22 08:56:33,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:56:33,520 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-10-22 08:56:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:33,521 INFO L225 Difference]: With dead ends: 233 [2019-10-22 08:56:33,521 INFO L226 Difference]: Without dead ends: 233 [2019-10-22 08:56:33,521 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:56:33,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-22 08:56:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 226. [2019-10-22 08:56:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-22 08:56:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 266 transitions. [2019-10-22 08:56:33,525 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 266 transitions. Word has length 41 [2019-10-22 08:56:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:33,525 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 266 transitions. [2019-10-22 08:56:33,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:56:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 266 transitions. [2019-10-22 08:56:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 08:56:33,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:33,526 INFO L380 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] [2019-10-22 08:56:33,526 INFO L410 AbstractCegarLoop]: === Iteration 22 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:33,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1423920632, now seen corresponding path program 1 times [2019-10-22 08:56:33,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:33,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878799892] [2019-10-22 08:56:33,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:33,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878799892] [2019-10-22 08:56:33,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:33,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:33,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615347212] [2019-10-22 08:56:33,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:33,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:33,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:33,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:33,588 INFO L87 Difference]: Start difference. First operand 226 states and 266 transitions. Second operand 4 states. [2019-10-22 08:56:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:33,747 INFO L93 Difference]: Finished difference Result 233 states and 267 transitions. [2019-10-22 08:56:33,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:33,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2019-10-22 08:56:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:33,750 INFO L225 Difference]: With dead ends: 233 [2019-10-22 08:56:33,750 INFO L226 Difference]: Without dead ends: 233 [2019-10-22 08:56:33,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-22 08:56:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 227. [2019-10-22 08:56:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-22 08:56:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 267 transitions. [2019-10-22 08:56:33,754 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 267 transitions. Word has length 42 [2019-10-22 08:56:33,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:33,754 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 267 transitions. [2019-10-22 08:56:33,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 267 transitions. [2019-10-22 08:56:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:56:33,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:33,755 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:33,755 INFO L410 AbstractCegarLoop]: === Iteration 23 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1372867121, now seen corresponding path program 1 times [2019-10-22 08:56:33,756 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:33,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033377726] [2019-10-22 08:56:33,756 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,756 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:33,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:33,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033377726] [2019-10-22 08:56:33,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675953979] [2019-10-22 08:56:33,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:33,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-22 08:56:33,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:34,003 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:56:34,004 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:34,012 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,017 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:56:34,017 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:34,024 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,024 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:34,025 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-10-22 08:56:34,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:34,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:34,242 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,242 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 18 [2019-10-22 08:56:34,243 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-22 08:56:34,256 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:34,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:56:34,272 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,273 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 18 [2019-10-22 08:56:34,273 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-22 08:56:34,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:34,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:34,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:34,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:34,296 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-10-22 08:56:34,298 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:37 [2019-10-22 08:56:34,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:56:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:34,396 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:56:34,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 18 [2019-10-22 08:56:34,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228934884] [2019-10-22 08:56:34,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-22 08:56:34,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:34,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-22 08:56:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:56:34,397 INFO L87 Difference]: Start difference. First operand 227 states and 267 transitions. Second operand 18 states. [2019-10-22 08:56:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:36,023 INFO L93 Difference]: Finished difference Result 501 states and 544 transitions. [2019-10-22 08:56:36,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-22 08:56:36,023 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-10-22 08:56:36,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:36,024 INFO L225 Difference]: With dead ends: 501 [2019-10-22 08:56:36,024 INFO L226 Difference]: Without dead ends: 501 [2019-10-22 08:56:36,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=240, Invalid=1242, Unknown=0, NotChecked=0, Total=1482 [2019-10-22 08:56:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-22 08:56:36,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 251. [2019-10-22 08:56:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-10-22 08:56:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 299 transitions. [2019-10-22 08:56:36,031 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 299 transitions. Word has length 45 [2019-10-22 08:56:36,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:36,031 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 299 transitions. [2019-10-22 08:56:36,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-22 08:56:36,031 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 299 transitions. [2019-10-22 08:56:36,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:56:36,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:36,032 INFO L380 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] [2019-10-22 08:56:36,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:36,233 INFO L410 AbstractCegarLoop]: === Iteration 24 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:36,233 INFO L82 PathProgramCache]: Analyzing trace with hash -762728307, now seen corresponding path program 1 times [2019-10-22 08:56:36,233 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:36,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678472398] [2019-10-22 08:56:36,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:36,233 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:36,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:36,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678472398] [2019-10-22 08:56:36,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:36,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-22 08:56:36,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439284850] [2019-10-22 08:56:36,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:56:36,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:36,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:56:36,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:36,396 INFO L87 Difference]: Start difference. First operand 251 states and 299 transitions. Second operand 11 states. [2019-10-22 08:56:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:36,968 INFO L93 Difference]: Finished difference Result 435 states and 502 transitions. [2019-10-22 08:56:36,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:56:36,968 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2019-10-22 08:56:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:36,969 INFO L225 Difference]: With dead ends: 435 [2019-10-22 08:56:36,969 INFO L226 Difference]: Without dead ends: 435 [2019-10-22 08:56:36,970 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2019-10-22 08:56:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-10-22 08:56:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 258. [2019-10-22 08:56:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-22 08:56:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 308 transitions. [2019-10-22 08:56:36,974 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 308 transitions. Word has length 45 [2019-10-22 08:56:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:36,975 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 308 transitions. [2019-10-22 08:56:36,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:56:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 308 transitions. [2019-10-22 08:56:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:56:36,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:36,975 INFO L380 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] [2019-10-22 08:56:36,976 INFO L410 AbstractCegarLoop]: === Iteration 25 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:36,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:36,976 INFO L82 PathProgramCache]: Analyzing trace with hash -762728306, now seen corresponding path program 1 times [2019-10-22 08:56:36,976 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:36,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912659486] [2019-10-22 08:56:36,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:36,977 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:36,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:37,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912659486] [2019-10-22 08:56:37,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:37,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-22 08:56:37,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45847345] [2019-10-22 08:56:37,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:56:37,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:37,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:56:37,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:37,128 INFO L87 Difference]: Start difference. First operand 258 states and 308 transitions. Second operand 11 states. [2019-10-22 08:56:37,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:37,777 INFO L93 Difference]: Finished difference Result 438 states and 506 transitions. [2019-10-22 08:56:37,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:56:37,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2019-10-22 08:56:37,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:37,779 INFO L225 Difference]: With dead ends: 438 [2019-10-22 08:56:37,779 INFO L226 Difference]: Without dead ends: 438 [2019-10-22 08:56:37,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:56:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-22 08:56:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 264. [2019-10-22 08:56:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-10-22 08:56:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 313 transitions. [2019-10-22 08:56:37,784 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 313 transitions. Word has length 45 [2019-10-22 08:56:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:37,784 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 313 transitions. [2019-10-22 08:56:37,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:56:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 313 transitions. [2019-10-22 08:56:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 08:56:37,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:37,786 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:37,786 INFO L410 AbstractCegarLoop]: === Iteration 26 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:37,786 INFO L82 PathProgramCache]: Analyzing trace with hash -390791237, now seen corresponding path program 1 times [2019-10-22 08:56:37,786 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:37,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192096844] [2019-10-22 08:56:37,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:37,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:37,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:37,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192096844] [2019-10-22 08:56:37,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965657999] [2019-10-22 08:56:37,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:37,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:56:37,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:56:37,939 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:56:37,939 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-10-22 08:56:37,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321557086] [2019-10-22 08:56:37,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:37,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:37,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:37,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:37,940 INFO L87 Difference]: Start difference. First operand 264 states and 313 transitions. Second operand 7 states. [2019-10-22 08:56:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:38,208 INFO L93 Difference]: Finished difference Result 295 states and 344 transitions. [2019-10-22 08:56:38,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:38,209 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-22 08:56:38,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:38,210 INFO L225 Difference]: With dead ends: 295 [2019-10-22 08:56:38,210 INFO L226 Difference]: Without dead ends: 271 [2019-10-22 08:56:38,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-22 08:56:38,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2019-10-22 08:56:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2019-10-22 08:56:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 320 transitions. [2019-10-22 08:56:38,214 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 320 transitions. Word has length 46 [2019-10-22 08:56:38,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:38,214 INFO L462 AbstractCegarLoop]: Abstraction has 271 states and 320 transitions. [2019-10-22 08:56:38,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 320 transitions. [2019-10-22 08:56:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 08:56:38,215 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:38,215 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:38,415 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:38,416 INFO L410 AbstractCegarLoop]: === Iteration 27 === [mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr41REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION]=== [2019-10-22 08:56:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1467570882, now seen corresponding path program 1 times [2019-10-22 08:56:38,416 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:38,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725866659] [2019-10-22 08:56:38,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:38,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:38,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:38,486 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:38,486 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:38,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:38 BoogieIcfgContainer [2019-10-22 08:56:38,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:38,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:38,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:38,556 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:38,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:19" (3/4) ... [2019-10-22 08:56:38,559 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:56:38,622 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d27e3d69-3136-4c09-ac6f-77ce06d500c8/bin/uautomizer/witness.graphml [2019-10-22 08:56:38,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:38,626 INFO L168 Benchmark]: Toolchain (without parser) took 20038.90 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 471.9 MB). Free memory was 943.1 MB in the beginning and 1.0 GB in the end (delta: -72.1 MB). Peak memory consumption was 399.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:38,627 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:38,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:38,627 INFO L168 Benchmark]: Boogie Preprocessor took 68.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:38,628 INFO L168 Benchmark]: RCFGBuilder took 772.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:38,628 INFO L168 Benchmark]: TraceAbstraction took 18610.16 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 332.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.1 MB). Peak memory consumption was 353.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:38,628 INFO L168 Benchmark]: Witness Printer took 69.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:38,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 514.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 772.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18610.16 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 332.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.1 MB). Peak memory consumption was 353.5 MB. Max. memory is 11.5 GB. * Witness Printer took 69.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L991] SLL* list = malloc(sizeof(SLL)); VAL [list={2:0}, malloc(sizeof(SLL))={2:0}] [L992] list->next = ((void*)0) VAL [list={2:0}, malloc(sizeof(SLL))={2:0}] [L993] COND FALSE !(!(list != ((void*)0))) VAL [list={2:0}, malloc(sizeof(SLL))={2:0}] [L993] COND FALSE !(__VERIFIER_nondet_int()) [L993] list->inner = malloc(sizeof(SLL)) VAL [list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] EXPR list->inner VAL [list={2:0}, list->inner={3:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] list->inner->next = ((void*)0) VAL [list={2:0}, list->inner={3:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] EXPR list->inner VAL [list={2:0}, list->inner={3:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] list->inner->inner = ((void*)0) VAL [list={2:0}, list->inner={3:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] EXPR list->inner VAL [list={2:0}, list->inner={3:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={2:0}, list->inner={3:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L993] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L995] SLL* end = list; VAL [end={2:0}, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L998] COND FALSE !(__VERIFIER_nondet_int()) [L1008] end = ((void*)0) [L1009] end = list VAL [end={2:0}, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1012] COND FALSE !(!(((void*)0) != end)) VAL [end={2:0}, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1014] COND TRUE ((void*)0) != end [L1016] int len = 0; VAL [end={2:0}, len=0, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1017] EXPR end->inner VAL [end={2:0}, end->inner={3:0}, len=0, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1017] SLL* inner = end->inner; [L1018] COND TRUE ((void*)0) != inner VAL [end={2:0}, inner={3:0}, len=0, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1020] COND TRUE len == 0 [L1021] len = 1 VAL [end={2:0}, inner={3:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1024] COND FALSE !(!(((void*)0) != inner)) VAL [end={2:0}, inner={3:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1025] EXPR inner->inner VAL [end={2:0}, inner={3:0}, inner->inner={0:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1025] COND FALSE !(!(((void*)0) == inner->inner)) [L1026] EXPR inner->next VAL [end={2:0}, inner={3:0}, inner->next={0:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1026] COND FALSE !(!(((void*)0) == inner->next)) [L1027] EXPR inner->inner VAL [end={2:0}, inner={3:0}, inner->inner={0:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1027] inner = inner->inner [L1028] COND TRUE len == 1 VAL [end={2:0}, inner={0:0}, len=1, list={2:0}, malloc(sizeof(SLL))={3:0}, malloc(sizeof(SLL))={2:0}] [L1029] inner->inner - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 67 error locations. Result: UNSAFE, OverallTime: 18.5s, OverallIterations: 27, TraceHistogramMax: 2, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3515 SDtfs, 7072 SDslu, 11261 SDs, 0 SdLazy, 15077 SolverSat, 513 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=26, 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, 26 MinimizatonAttempts, 2387 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 948 NumberOfCodeBlocks, 948 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 873 ConstructedInterpolants, 10 QuantifiedInterpolants, 300570 SizeOfPredicates, 22 NumberOfNonLiveVariables, 475 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 10/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...